US20060111002A1 - Fiberglass nonwoven binder - Google Patents
Fiberglass nonwoven binder Download PDFInfo
- Publication number
- US20060111002A1 US20060111002A1 US11/275,561 US27556106A US2006111002A1 US 20060111002 A1 US20060111002 A1 US 20060111002A1 US 27556106 A US27556106 A US 27556106A US 2006111002 A1 US2006111002 A1 US 2006111002A1
- Authority
- US
- United States
- Prior art keywords
- acid
- grams
- binder composition
- copolymer
- binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000011230 binding agent Substances 0.000 title claims abstract description 63
- 239000011152 fibreglass Substances 0.000 title claims abstract description 25
- 229920001577 copolymer Polymers 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000002253 acid Substances 0.000 claims abstract description 16
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000000178 monomer Substances 0.000 claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 150000001412 amines Chemical class 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 239000002557 mineral fiber Substances 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- 150000001735 carboxylic acids Chemical group 0.000 claims 3
- 125000000217 alkyl group Chemical group 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 125000003277 amino group Chemical group 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 33
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 16
- 239000007795 chemical reaction product Substances 0.000 description 14
- 239000008367 deionised water Substances 0.000 description 14
- 229910021641 deionized water Inorganic materials 0.000 description 14
- 229920000642 polymer Polymers 0.000 description 14
- -1 hydrogen compound Chemical class 0.000 description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 10
- 239000003999 initiator Substances 0.000 description 10
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 10
- 238000004132 cross linking Methods 0.000 description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 229960004418 trolamine Drugs 0.000 description 7
- 229920002125 Sokalan® Polymers 0.000 description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 6
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical class [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000908 ammonium hydroxide Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 3
- 229920005596 polymer binder Polymers 0.000 description 3
- 239000002491 polymer binding agent Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004971 Cross linker Substances 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 235000013351 cheese Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 238000012643 polycondensation polymerization Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- BEWCNXNIQCLWHP-UHFFFAOYSA-N 2-(tert-butylamino)ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCNC(C)(C)C BEWCNXNIQCLWHP-UHFFFAOYSA-N 0.000 description 1
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical compound O=C1NCCO1 IZXIZTKNFFYFOF-UHFFFAOYSA-N 0.000 description 1
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 1
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- FLCAEMBIQVZWIF-UHFFFAOYSA-N 6-(dimethylamino)-2-methylhex-2-enamide Chemical compound CN(C)CCCC=C(C)C(N)=O FLCAEMBIQVZWIF-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000005819 Potassium phosphonate Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- YXXXKCDYKKSZHL-UHFFFAOYSA-M dipotassium;dioxido(oxo)phosphanium Chemical compound [K+].[K+].[O-][P+]([O-])=O YXXXKCDYKKSZHL-UHFFFAOYSA-M 0.000 description 1
- 235000019820 disodium diphosphate Nutrition 0.000 description 1
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical compound [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 description 1
- 229940038485 disodium pyrophosphate Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- UPCIBFUJJLCOQG-UHFFFAOYSA-L ethyl-[2-[2-[ethyl(dimethyl)azaniumyl]ethyl-methylamino]ethyl]-dimethylazanium;dibromide Chemical compound [Br-].[Br-].CC[N+](C)(C)CCN(C)CC[N+](C)(C)CC UPCIBFUJJLCOQG-UHFFFAOYSA-L 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000008821 health effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000012688 inverse emulsion polymerization Methods 0.000 description 1
- LDHQCZJRKDOVOX-IHWYPQMZSA-N isocrotonic acid Chemical compound C\C=C/C(O)=O LDHQCZJRKDOVOX-IHWYPQMZSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000004337 magnesium citrate Substances 0.000 description 1
- 229960005336 magnesium citrate Drugs 0.000 description 1
- 235000002538 magnesium citrate Nutrition 0.000 description 1
- 229940091250 magnesium supplement Drugs 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 description 1
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- OQZCJRJRGMMSGK-UHFFFAOYSA-M potassium metaphosphate Chemical compound [K+].[O-]P(=O)=O OQZCJRJRGMMSGK-UHFFFAOYSA-M 0.000 description 1
- 235000019828 potassium polyphosphate Nutrition 0.000 description 1
- POSICDHOUBKJKP-UHFFFAOYSA-N prop-2-enoxybenzene Chemical compound C=CCOC1=CC=CC=C1 POSICDHOUBKJKP-UHFFFAOYSA-N 0.000 description 1
- ARJOQCYCJMAIFR-UHFFFAOYSA-N prop-2-enoyl prop-2-enoate Chemical compound C=CC(=O)OC(=O)C=C ARJOQCYCJMAIFR-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003340 retarding agent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- UGTZMIPZNRIWHX-UHFFFAOYSA-K sodium trimetaphosphate Chemical compound [Na+].[Na+].[Na+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 UGTZMIPZNRIWHX-UHFFFAOYSA-K 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- SDVHRXOTTYYKRY-UHFFFAOYSA-J tetrasodium;dioxido-oxo-phosphonato-$l^{5}-phosphane Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)P([O-])([O-])=O SDVHRXOTTYYKRY-UHFFFAOYSA-J 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- PLSARIKBYIPYPF-UHFFFAOYSA-H trimagnesium dicitrate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O PLSARIKBYIPYPF-UHFFFAOYSA-H 0.000 description 1
- NCPXQVVMIXIKTN-UHFFFAOYSA-N trisodium;phosphite Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])[O-] NCPXQVVMIXIKTN-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0366—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
Definitions
- the invention relates to a non-woven binder composition containing a copolymer having both an acid and hydroxyl or amine functionality.
- the binder composition is especially useful for binding mineral fiber, and particularly as a fiberglass binder.
- the binder composition provides a strong, yet flexible bond that allows a compressed fiberglass mat to easily expand once the compression is released.
- Fiberglass insulation products generally consist of glass fibers bonded together by a polymeric binder.
- An aqueous polymer binder is sprayed onto matted glass fibers soon after they have been formed, and while they are still hot.
- the polymer binder tends to accumulate at the junctions where fibers cross each other, holding the fibers together at these points.
- the heat from the fibers causes most of the water in the binder to vaporize.
- An important property of the fiberglass binder is that it must be flexible—allowing the fiberglass product to be compressed for packaging and shipping but recover to its full vertical dimension when installed.
- Phenol-formaldehyde binders have been the primary binders in the manufacture of fiberglass insulation. These binders are low-cost and easy to apply and readily cured. They provide a strong bond, yet elasticity and good thickness recovery to obtain the full insulating value.
- One drawback to phenol-formaldehyde binders is that they release significant levels of formaldehyde into the environment during manufacture. The cured resin can also release formaldehyde in use, especially when exposed to acidic conditions. Exposure to formaldehyde produces adverse health effects in animals and humans. Recent developments have lead to reduced emissions of formaldehyde, as in U.S. Pat. No. 5,670,585, or as in a mixture of phenol formaldehyde binders with carboxylic acid polymer binders, as in U.S. Pat. No. 6,194,512, however formaldehyde emissions remain a concern.
- a polymer such as a polycarboxyl, polyacid, polyacrylic, or anhydride
- a cross-linker that is an active hydrogen compound such as trihydric alcohol (U.S. Pat. No. 5,763,524; U.S. Pat. No. 5,318,990), triethanolamine (U.S. Pat. No. 6,331,350; EP 0990728), beta-hydroxy alkyl amides (U.S. Pat. No. 5,340,868; or hydroxy alkyl urea (U.S. Pat. Nos. 5,840,822; 6,140,388)
- a catalyst or accelerator such as a phosphorous containing compound or a fluoroborate compound (U.S. Pat. No. 5,977,232).
- the present invention is directed to a nonwoven binder composition, having an aqueous solution comprising a copolymer binder having both an acid functionality and hydroxyl or amine functionality.
- the invention is also directed to a bonded fiberglass mat having directly deposited thereon a copolymer binder having both an acid and hydroxyl or amine functionality.
- the present invention relates to a non-woven binder composition containing a copolymer binder synthesized from at least one acid-functional monomer, and at least one hydroxyl or amine functional monomer.
- the copolymer binder is synthesized from one or more acid monomers.
- the acid monomer may be a carboxylic acid monomer, a sulfonic acid monomer, a phosphonic acid monomer, or a mixture thereof.
- the acid monomer makes up from 1 to 99 mole percent, preferably from 50 to 95 mole percent, and most preferably from 60 to 90 mole percent of the polymer.
- the acid monomer is one or more carboxylic acid monomers.
- the carboxylic acid monomer includes anhydrides that will form carboxyl groups in situ.
- carboxylic acid monomers useful in forming the copolymer of the invention include, but are not limited to acrylic acid, methacrylic acid, crotonic acid, isocrotonic acid, fumaric acid, maleic acid, cinnamic acid, 2-methylmaleic acid, itaconic acid, 2-methylitaconic acid, sorbic acid, alpha-beta-methylene glutaric acid, maleic anhydride, itaconic anhydride, acrylic anhydride, methacrylic anhydride.
- Preferred monomers are maleic acid, acrylic acid and methacrylic acid.
- the carboxyl groups could also be formed in situ, such as in the case of isopropyl esters of acrylates and methacrylates that will form acids by hydrolysis of the esters when the isopropyl group leaves.
- Examples of phosphonic acid monomers useful in forming the copolymer include, but are not limited to, vinyl phosphonic acid.
- sulfonic acid monomers useful in forming the copolymer include, but are not limited to, styrene sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, vinyl sulfonic acid, methallyl sulfonic acid, sulfonated styrene, and allyloxybenzene sulfonic acid.
- the copolymer binder is also synthesized from one or more hydroxyl- or amine-containing monomers.
- the hydroxyl or amine monomer makes up from I to 75 mole percent, and preferably 10 to 20 mole percent of the copolymer.
- Examples of hydroxyl monomers useful in forming the copolymer of the invention include, but are not limited to, hydroxy propyl (meth) acrylate, hydroxy ethyl (meth) acrylate, hydroxy butyl (meth) acrylate and methacrylate esters of poly(ethylene/propylene/butylene) glycol.
- hydroxy propyl (meth) acrylate hydroxy ethyl (meth) acrylate
- hydroxy butyl (meth) acrylate hydroxy butyl (meth) acrylate
- methacrylate esters of poly(ethylene/propylene/butylene) glycol e.g., hydroxy butyl (meth) glycol.
- monomers like vinyl acetate that can be hydrolyzed to vinyl alcohol after polymerization may be used.
- Preferred monomers are hydroxypropyl acrylate and methacrylate.
- amine-functional monomers useful in the present invention include, N,N-dialkyl aminoalkyl (meth)acrylate, N,N-dialkyl aminoalkyl (meth) acrylamide, namely, dimethyl aminopropyl methacrylate, dimethyl aminoethyl methacrylate, tert-butyl aminoethyl methacrylate and dimethyl aminopropyl methacrylamide.
- monomers like vinyl formamide and vinyl acetamide that can be hydrolyzed to vinyl amine after polymerization may also be used.
- aromatic amine monomers such as vinyl pyridine may also be used.
- the copolymer could contain a mixture of both hydroxyl and amine functional monomers. It was found that copolymers containing lower levels of these functional monomers were more flexible than copolymers containing higher levels of these functional monomers. While not being bound to any particular theory, it is believed this may be related to the lower T g copolymers that are formed. Amide-functional monomers could also be used to form the copolymer if a higher cure temperature is used in forming the finished non-woven.
- the mole ratio of acid-functional monomer to hydroxyl- or amine-functional monomer is preferably from 100:1 to 1:1, and more preferably from 5:1 to 1.5:1.
- ethylenically unsaturated monomers may also be used to form the copolymer binder, at a level of up to 50 mole percent based on the total monomer. These monomers can be used to obtain desirable properties of the copolymer, in ways known in the art. For example, hydrophobic monomers can be used to increase the water-resistance of the non-woven. Monomers can also be use to adjust the Tg of the copolymer to meet the end-use application requirements.
- Useful monomers include, but are not limited to, (meth)acrylates, maleates, (meth)acrylamides, vinyl esters, itaconates, styrenics, acrylonitrile, nitrogen functional monomers, vinyl esters, alcohol functional monomers, and unsaturated hydrocarbons.
- Low levels of up to a few percent of crosslinking monomers may also be used to form the polymer.
- the extra crosslinking improves the strength of the bonding, yet at higher levels would be detrimental to the flexibility of the resultant material.
- the crosslinking moieties can be latent crosslinking where the crosslinking reaction takes place not during polymerization but during curing of the binder.
- Chain-transfer agent may also be used, as known in the art, in order to regulate chain length and molecular weight.
- the chain transfer agents may be multifunctional so as to produce star type polymers.
- the copolymer is synthesized by known methods of polymerization, including solution, emulsion, suspension and inverse emulsion polymerization methods.
- the polymer is formed by solution polymerization in an aqueous medium.
- the aqueous medium may be water, or a mixed water/water-miscible solvent system, such as a water/alcohol solution.
- the polymerization may be batch, semi-batch, or continuous.
- the polymers are typically prepared by free radical polymerization but condensation polymerization may also be used to produce a polymer containing the desired moieties.
- copolymers of poly(aspartate-co-succinimide) can be prepared by condensation polymerization.
- This copolymer can be further derivatized by alkanolamines to produce a polymer with carboxylic acid as well as hydroxyl moieties.
- the monomers may be added to the initial charge, added on a delayed basis, or a combination.
- the copolymer is generally formed at a solids level in the range of 15 to 60 percent, and preferably from 25 to 50 percent, and will have a pH in the range of from 1-5, and preferably from 2-4. One reason a pH of above 2 is preferred is for the hazard classification it will be afforded.
- the copolymer may be partially neutralized, commonly with sodium, potassium, or ammonium hydroxides. The choice of base, and the partial-salt formed will affect the T g of the copolymer. The use of calcium or magnesium base for neutralization produces partial salts having unique solubility characteristics, making them quite useful depending on end-use application.
- the copolymer binder may be random, block, star, or other known polymer architecture. Random polymers are preferred due to the economic advantages; however other architectures could be useful in certain end-uses. Copolymers useful as fiberglass binders will have weight average molecular weights in the range of 1,000 to 300,000, and preferably in the range of 2,000 to 15,000. The molecular weight of the copolymer is preferably in the range of 2,500 to 10,000, and most preferably from 3,000 to 6,000.
- the copolymer binder will form strong bonding without the need for a catalyst or accelerator.
- One advantage of not using a catalyst in the binder composition is that catalysts tend to produce films that can discolor, or films that release phosphorous-containing vapors.
- the copolymer of the present invention used without a catalyst, forms a clear film.
- An accelerator or catalyst may preferentially be combined with the copolymer binder in order to decrease the time for cure, increase the crosslinking density, reduce the curing time, and/or decrease the water sensitivity of the cured binder.
- Catalysts useful with the binder are those known in the art including, but not limited to, alkali metal salts of a phosphorous-containing organic acid, such as sodium hypophosphate, sodium phosphite, potassium phosphite, disodium pyrophosphate, tetrasodium pyrophosphate, sodium tripolyphosphate, sodium hexametaphosphate, potassium polyphosphate, potassium tripolyphospate, sodium trimetaphosphate, sodium tertametaphosphate; fluouroborates, and mixtures thereof.
- the catalyst could also be a Lewis acid, such as magnesium citrate or magnesium chloride; a Lewis base; or a free radical generator, such as a peroxide.
- the catalyst is present in the binder formulation at from 0 to 25 percent by weight, and more preferably from 1 to 10 percent by weight based on the copolymer binder.
- additional hydroxyl, polyol, or amine components may be admixed with the copolymer binder.
- the copolymer contains internal hydroxy or amine groups, the external crosslinkers are not required.
- Useful hydroxyl compounds include, but are not limited to, trihydric alcohol; beta-hydroxy alkyl amides; polyols, especially those having molecular weights of less than 10,000; ethanol amines, such as triethanol amine; hydroxy alkyl urea; oxazolidone.
- Useful amines include, but are not limited to, triethanol amine, diethylene triamine, tetratethylene pentamine, and polyethylene imine.
- the polyol or amine in addition to providing additional cross-linking, also serves to plasticize the polymer film.
- the copolymer binder may optionally be formulated with one or more adjuvants, such as, for example, coupling agents, dyes, pigments, oils, fillers, thermal stabilizers, emulsifiers, curing agents, wetting agents, biocides, plasticizers, anti-foaming agents, waxes, flame-retarding agents, and lubricants.
- adjuvants are generally added at levels of less than 20 percent, based on the weight of the copolymer binder.
- the copolymer binder composition is useful for bonding fibrous substrates to form a formaldehyde-free non-woven material.
- the copolymer binder of the invention is especially useful as a binder for heat-resistant non-wovens, such as, for example, aramid fibers, ceramic fibers, metal fibers, polyrayon fibers, polyester fibers, carbon fibers, polyimide fibers, and mineral fibers such as glass fibers.
- the binder is also useful in other formaldehyde-free applications for binding fibrous substances such as wood, wood chips, wood particles and wood veneers, to form plywood, particleboard, wood laminates, and similar composites.
- the copolymer binder composition is generally applied to a fiberglass mat as it is being formed by means of a suitable spray applicator, to aid in distributing the binder evenly throughout the formed fiberglass mat.
- Typical solids of the aqueous solutions are about 5 to 12 percent.
- the binder may also be applied by other means known in the art, including, but not limited to, airless spray, air spray, padding, saturating, and roll coating.
- the residual heat from the fibers causes water to be volatilized from the binder, and the high-solids binder-coated fiberglass mat is allowed to expand vertically due to the resiliency of the glass fibers.
- the fiberglass mat is then heated to cure the binder.
- the curing oven operates at a temperature of from 130° C. to 325° C.
- the fiberglass mat is typically cured from 5 seconds to 15 minutes, and preferably from 30 seconds to 3 minutes.
- the cure temperature will depend on both the temperature and the level of catalyst used.
- the fiberglass mat may then be compressed for shipping. An important property of the fiberglass mat is that it will return to its full vertical height once the compression is removed.
- Properties of the finished non-woven (fiberglass) include the clear appearance of the film.
- the clear film may be dyed to provide any desired color.
- the copolymer binder produces a flexible film, which allows the fiberglass insulation to bounce back after one unwraps the roll and uses it in walls/ceilings.
- Fiberglass, or other non-woven treated with the copolymer binder composition is useful as insulation for heat or sound in the form of rolls or batts; as a reinforcing mat for roofing and flooring products, ceiling tiles, flooring tiles, as a microglass-based substrate for printed circuit boards and battery separators; for filter stock and tape stock and for reinforcements in both non-cementatious and cementatious masonry coatings.
- a reactor containing 598.0 grams of water was heated to 94° C.
- a mixed monomer solution containing 309.0 grams of methacrylic acid and 7.6 grams of hydroxyethyl methacrylate was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes. The reaction product was held at 94° C. for an additional hour.
- a reactor containing 598.0 grams of water was heated to 94° C.
- a mixed monomer solution containing 275.0 grams of methacrylic acid and 46.2 grams of hydroxyethyl methacrylate was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes. The reaction product was held at 94° C. for an additional hour.
- a reactor containing 598.0 grams of water was heated to 94° C.
- a mixed monomer solution containing 309.0 grams of methacrylic acid and 7.6 grams of dimethyl aminoethyl methacrylate was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes.
- the reaction product was held at 94° C. for an additional hour.
- the reaction was cooled and then neutralized with ammonia solution to a pH of 7.0.
- a reactor containing 158.0 grams of water was heated to 94° C.
- a monomer solution containing 81.8 grams of methacrylic acid and 20 grams of hydroxyethylacrylate was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes.
- the reaction product was held at 94° C. for an additional hour.
- the reaction was cooled and then neutralized with 75.2 grams of a 50% NaOH solution.
- a reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85C.
- a monomer solution containing 240 grams of acrylic acid and 60 grams of hydroxypropylacrylate (12.2 mole %) was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours.
- the reaction product was held at 85° C. for an additional hour.
- the isopropanol was then distilled using a Dean Stark trap.
- the reaction product was then partially neutralized using 17.6 grams of ammonium hydroxide (28%) solution and 52 grams of deionized water.
- the polymer solution had 51% solids and a pH of 2.7.
- a reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85° C.
- a monomer solution containing 274 grams of acrylic acid and 26 grams of hydroxypropylacrylate (5 mole %) was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours.
- the reaction product was held at 85° C. for an additional hour.
- the isopropanol was then distilled using a Dean Stark trap.
- the reaction product was then partially neutralized using 14 grams of ammonium hydroxide (28%) solution and 84 grams of deionized water.
- the polymer solution had 52% solids and a pH of 2.5.
- a reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85° C.
- a monomer solution containing 240 grams of acrylic acid and 53.4 grams of hydroxyethylacrylate (12.2 mole %) was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours.
- the reaction product was held at 85° C. for an additional hour.
- the isopropanol was then distilled using a Dean Stark trap.
- the reaction product was then partially neutralized using 12 grams of ammonium hydroxide (28%) solution and 52 grams of deionized water.
- the polymer solution had 51% solids and a pH of 2.5.
- a reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85° C.
- a monomer solution containing 274grams of acrylic acid and 23.2 grams of hydroxyethylacrylate (5 mole %) was added to the reactor over a period of 3.5 hours.
- An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours.
- the reaction product was held at 85° C. for an additional hour.
- the isopropanol was then distilled using a Dean Stark trap.
- the reaction product was then diluted with 84 grams of deionized water.
- the polymer solution had 51% solids.
- a reactor containing 300 grams of water was heated to 95° C.
- a monomer solution containing 200 grams of acrylic acid and 100 grams of hydroxypropylacrylate was added to the reactor over a period of 2 hours.
- An initiator solution comprising of 9 grams of sodium persulfate in 60 grams of deionized water was simultaneously added to the reactor over a period of 2 hours and 15 minutes. The reaction product was held at 95° C. for 2 additional hours.
- a reactor containing 300 grams of water was heated to 95° C.
- a monomer solution containing 240grams of acrylic acid and 60 grams of hydroxypropylacrylate was added to the reactor over a period of 2 hours.
- An initiator solution comprising of 9 grams of sodium persulfate in 60 grams of deionized water was simultaneously added to the reactor over a period of 2 hours and 15 minutes. The reaction product was held at 95° C. for 2 additional hours.
- the testing protocol was as follows. 20 grams of each solution was poured into poly(methyl pentene) (PMP) petri dishes and placed overnight in a forced air oven set at 60° C. They were then cured by being placed for 10 minutes in a forced air oven set at 150° C. After cooling, the resulting films were evaluated in terms of physical appearance, flexibility, and tensile strength.
- PMP poly(methyl pentene)
Abstract
Description
- The present application is a continuation of U.S. application Ser. No. 10/283,406, filed 29 Oct. 2002.
- The invention relates to a non-woven binder composition containing a copolymer having both an acid and hydroxyl or amine functionality. The binder composition is especially useful for binding mineral fiber, and particularly as a fiberglass binder. The binder composition provides a strong, yet flexible bond that allows a compressed fiberglass mat to easily expand once the compression is released.
- Fiberglass insulation products generally consist of glass fibers bonded together by a polymeric binder. An aqueous polymer binder is sprayed onto matted glass fibers soon after they have been formed, and while they are still hot. The polymer binder tends to accumulate at the junctions where fibers cross each other, holding the fibers together at these points. The heat from the fibers causes most of the water in the binder to vaporize. An important property of the fiberglass binder is that it must be flexible—allowing the fiberglass product to be compressed for packaging and shipping but recover to its full vertical dimension when installed.
- Phenol-formaldehyde binders have been the primary binders in the manufacture of fiberglass insulation. These binders are low-cost and easy to apply and readily cured. They provide a strong bond, yet elasticity and good thickness recovery to obtain the full insulating value. One drawback to phenol-formaldehyde binders is that they release significant levels of formaldehyde into the environment during manufacture. The cured resin can also release formaldehyde in use, especially when exposed to acidic conditions. Exposure to formaldehyde produces adverse health effects in animals and humans. Recent developments have lead to reduced emissions of formaldehyde, as in U.S. Pat. No. 5,670,585, or as in a mixture of phenol formaldehyde binders with carboxylic acid polymer binders, as in U.S. Pat. No. 6,194,512, however formaldehyde emissions remain a concern.
- Alternative chemistries have been developed to provide formaldehyde-free binder systems. These systems involve three parts: (1) a polymer, such as a polycarboxyl, polyacid, polyacrylic, or anhydride; (2) a cross-linker that is an active hydrogen compound such as trihydric alcohol (U.S. Pat. No. 5,763,524; U.S. Pat. No. 5,318,990), triethanolamine (U.S. Pat. No. 6,331,350; EP 0990728), beta-hydroxy alkyl amides (U.S. Pat. No. 5,340,868; or hydroxy alkyl urea (U.S. Pat. Nos. 5,840,822; 6,140,388) and (3) a catalyst or accelerator such as a phosphorous containing compound or a fluoroborate compound (U.S. Pat. No. 5,977,232).
- These alternative binder composition work well, however, there is a need for alternative fiberglass binder systems that provide the performance advantages of phenol-formaldehyde resins, in a formaldehyde-free system.
- Surprisingly it has been found that a polymeric binder having both acid and hydroxyl or amine groups produces a strong, yet flexible and clear fiberglass insulation binder system. The presence of both the acid and active hydrogen functionalities within the same copolymer eliminates the need for an extra component, and also places the functional groups in close proximity for efficient crosslinking.
- The present invention is directed to a nonwoven binder composition, having an aqueous solution comprising a copolymer binder having both an acid functionality and hydroxyl or amine functionality.
- The invention is also directed to a bonded fiberglass mat having directly deposited thereon a copolymer binder having both an acid and hydroxyl or amine functionality.
- The present invention relates to a non-woven binder composition containing a copolymer binder synthesized from at least one acid-functional monomer, and at least one hydroxyl or amine functional monomer.
- The copolymer binder is synthesized from one or more acid monomers. The acid monomer may be a carboxylic acid monomer, a sulfonic acid monomer, a phosphonic acid monomer, or a mixture thereof. The acid monomer makes up from 1 to 99 mole percent, preferably from 50 to 95 mole percent, and most preferably from 60 to 90 mole percent of the polymer. In one preferred embodiment, the acid monomer is one or more carboxylic acid monomers. The carboxylic acid monomer includes anhydrides that will form carboxyl groups in situ. Examples of carboxylic acid monomers useful in forming the copolymer of the invention include, but are not limited to acrylic acid, methacrylic acid, crotonic acid, isocrotonic acid, fumaric acid, maleic acid, cinnamic acid, 2-methylmaleic acid, itaconic acid, 2-methylitaconic acid, sorbic acid, alpha-beta-methylene glutaric acid, maleic anhydride, itaconic anhydride, acrylic anhydride, methacrylic anhydride. Preferred monomers are maleic acid, acrylic acid and methacrylic acid. The carboxyl groups could also be formed in situ, such as in the case of isopropyl esters of acrylates and methacrylates that will form acids by hydrolysis of the esters when the isopropyl group leaves.
- Examples of phosphonic acid monomers useful in forming the copolymer include, but are not limited to, vinyl phosphonic acid.
- Examples of sulfonic acid monomers useful in forming the copolymer include, but are not limited to, styrene sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, vinyl sulfonic acid, methallyl sulfonic acid, sulfonated styrene, and allyloxybenzene sulfonic acid.
- The copolymer binder is also synthesized from one or more hydroxyl- or amine-containing monomers. The hydroxyl or amine monomer makes up from I to 75 mole percent, and preferably 10 to 20 mole percent of the copolymer. Examples of hydroxyl monomers useful in forming the copolymer of the invention include, but are not limited to, hydroxy propyl (meth) acrylate, hydroxy ethyl (meth) acrylate, hydroxy butyl (meth) acrylate and methacrylate esters of poly(ethylene/propylene/butylene) glycol. In addition, one could use the acrylamide or methacrylamide version of these monomers. Also, monomers like vinyl acetate that can be hydrolyzed to vinyl alcohol after polymerization may be used. Preferred monomers are hydroxypropyl acrylate and methacrylate. Examples of amine-functional monomers useful in the present invention include, N,N-dialkyl aminoalkyl (meth)acrylate, N,N-dialkyl aminoalkyl (meth) acrylamide, namely, dimethyl aminopropyl methacrylate, dimethyl aminoethyl methacrylate, tert-butyl aminoethyl methacrylate and dimethyl aminopropyl methacrylamide. In addition, monomers like vinyl formamide and vinyl acetamide that can be hydrolyzed to vinyl amine after polymerization may also be used. Furthermore, aromatic amine monomers such as vinyl pyridine may also be used. The copolymer could contain a mixture of both hydroxyl and amine functional monomers. It was found that copolymers containing lower levels of these functional monomers were more flexible than copolymers containing higher levels of these functional monomers. While not being bound to any particular theory, it is believed this may be related to the lower Tg copolymers that are formed. Amide-functional monomers could also be used to form the copolymer if a higher cure temperature is used in forming the finished non-woven.
- The mole ratio of acid-functional monomer to hydroxyl- or amine-functional monomer is preferably from 100:1 to 1:1, and more preferably from 5:1 to 1.5:1.
- Other ethylenically unsaturated monomers may also be used to form the copolymer binder, at a level of up to 50 mole percent based on the total monomer. These monomers can be used to obtain desirable properties of the copolymer, in ways known in the art. For example, hydrophobic monomers can be used to increase the water-resistance of the non-woven. Monomers can also be use to adjust the Tg of the copolymer to meet the end-use application requirements. Useful monomers include, but are not limited to, (meth)acrylates, maleates, (meth)acrylamides, vinyl esters, itaconates, styrenics, acrylonitrile, nitrogen functional monomers, vinyl esters, alcohol functional monomers, and unsaturated hydrocarbons. Low levels of up to a few percent of crosslinking monomers may also be used to form the polymer. The extra crosslinking improves the strength of the bonding, yet at higher levels would be detrimental to the flexibility of the resultant material. The crosslinking moieties can be latent crosslinking where the crosslinking reaction takes place not during polymerization but during curing of the binder. Chain-transfer agent may also be used, as known in the art, in order to regulate chain length and molecular weight. The chain transfer agents may be multifunctional so as to produce star type polymers.
- The copolymer is synthesized by known methods of polymerization, including solution, emulsion, suspension and inverse emulsion polymerization methods. In one preferred embodiment, the polymer is formed by solution polymerization in an aqueous medium. The aqueous medium may be water, or a mixed water/water-miscible solvent system, such as a water/alcohol solution. The polymerization may be batch, semi-batch, or continuous. The polymers are typically prepared by free radical polymerization but condensation polymerization may also be used to produce a polymer containing the desired moieties. For example, copolymers of poly(aspartate-co-succinimide) can be prepared by condensation polymerization. This copolymer can be further derivatized by alkanolamines to produce a polymer with carboxylic acid as well as hydroxyl moieties. The monomers may be added to the initial charge, added on a delayed basis, or a combination. The copolymer is generally formed at a solids level in the range of 15 to 60 percent, and preferably from 25 to 50 percent, and will have a pH in the range of from 1-5, and preferably from 2-4. One reason a pH of above 2 is preferred is for the hazard classification it will be afforded. The copolymer may be partially neutralized, commonly with sodium, potassium, or ammonium hydroxides. The choice of base, and the partial-salt formed will affect the Tg of the copolymer. The use of calcium or magnesium base for neutralization produces partial salts having unique solubility characteristics, making them quite useful depending on end-use application.
- The copolymer binder may be random, block, star, or other known polymer architecture. Random polymers are preferred due to the economic advantages; however other architectures could be useful in certain end-uses. Copolymers useful as fiberglass binders will have weight average molecular weights in the range of 1,000 to 300,000, and preferably in the range of 2,000 to 15,000. The molecular weight of the copolymer is preferably in the range of 2,500 to 10,000, and most preferably from 3,000 to 6,000.
- The copolymer binder will form strong bonding without the need for a catalyst or accelerator. One advantage of not using a catalyst in the binder composition is that catalysts tend to produce films that can discolor, or films that release phosphorous-containing vapors. The copolymer of the present invention, used without a catalyst, forms a clear film. An accelerator or catalyst may preferentially be combined with the copolymer binder in order to decrease the time for cure, increase the crosslinking density, reduce the curing time, and/or decrease the water sensitivity of the cured binder. Catalysts useful with the binder are those known in the art including, but not limited to, alkali metal salts of a phosphorous-containing organic acid, such as sodium hypophosphate, sodium phosphite, potassium phosphite, disodium pyrophosphate, tetrasodium pyrophosphate, sodium tripolyphosphate, sodium hexametaphosphate, potassium polyphosphate, potassium tripolyphospate, sodium trimetaphosphate, sodium tertametaphosphate; fluouroborates, and mixtures thereof. The catalyst could also be a Lewis acid, such as magnesium citrate or magnesium chloride; a Lewis base; or a free radical generator, such as a peroxide. The catalyst is present in the binder formulation at from 0 to 25 percent by weight, and more preferably from 1 to 10 percent by weight based on the copolymer binder.
- Optionally, additional hydroxyl, polyol, or amine components may be admixed with the copolymer binder. Since the copolymer contains internal hydroxy or amine groups, the external crosslinkers are not required. Useful hydroxyl compounds include, but are not limited to, trihydric alcohol; beta-hydroxy alkyl amides; polyols, especially those having molecular weights of less than 10,000; ethanol amines, such as triethanol amine; hydroxy alkyl urea; oxazolidone. Useful amines include, but are not limited to, triethanol amine, diethylene triamine, tetratethylene pentamine, and polyethylene imine. The polyol or amine, in addition to providing additional cross-linking, also serves to plasticize the polymer film.
- The copolymer binder may optionally be formulated with one or more adjuvants, such as, for example, coupling agents, dyes, pigments, oils, fillers, thermal stabilizers, emulsifiers, curing agents, wetting agents, biocides, plasticizers, anti-foaming agents, waxes, flame-retarding agents, and lubricants. The adjuvants are generally added at levels of less than 20 percent, based on the weight of the copolymer binder.
- The copolymer binder composition is useful for bonding fibrous substrates to form a formaldehyde-free non-woven material. The copolymer binder of the invention is especially useful as a binder for heat-resistant non-wovens, such as, for example, aramid fibers, ceramic fibers, metal fibers, polyrayon fibers, polyester fibers, carbon fibers, polyimide fibers, and mineral fibers such as glass fibers. The binder is also useful in other formaldehyde-free applications for binding fibrous substances such as wood, wood chips, wood particles and wood veneers, to form plywood, particleboard, wood laminates, and similar composites.
- The copolymer binder composition is generally applied to a fiberglass mat as it is being formed by means of a suitable spray applicator, to aid in distributing the binder evenly throughout the formed fiberglass mat. Typical solids of the aqueous solutions are about 5 to 12 percent. The binder may also be applied by other means known in the art, including, but not limited to, airless spray, air spray, padding, saturating, and roll coating. The residual heat from the fibers causes water to be volatilized from the binder, and the high-solids binder-coated fiberglass mat is allowed to expand vertically due to the resiliency of the glass fibers. The fiberglass mat is then heated to cure the binder. Typically the curing oven operates at a temperature of from 130° C. to 325° C. The fiberglass mat is typically cured from 5 seconds to 15 minutes, and preferably from 30 seconds to 3 minutes. The cure temperature will depend on both the temperature and the level of catalyst used. The fiberglass mat may then be compressed for shipping. An important property of the fiberglass mat is that it will return to its full vertical height once the compression is removed.
- Properties of the finished non-woven (fiberglass) include the clear appearance of the film. The clear film may be dyed to provide any desired color. The copolymer binder produces a flexible film, which allows the fiberglass insulation to bounce back after one unwraps the roll and uses it in walls/ceilings.
- Fiberglass, or other non-woven treated with the copolymer binder composition is useful as insulation for heat or sound in the form of rolls or batts; as a reinforcing mat for roofing and flooring products, ceiling tiles, flooring tiles, as a microglass-based substrate for printed circuit boards and battery separators; for filter stock and tape stock and for reinforcements in both non-cementatious and cementatious masonry coatings.
- The following examples are presented to further illustrate and explain the present invention and should not be taken as limiting in any regard.
- A reactor containing 598.0 grams of water was heated to 94° C. A mixed monomer solution containing 309.0 grams of methacrylic acid and 7.6 grams of hydroxyethyl methacrylate was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes. The reaction product was held at 94° C. for an additional hour.
- A reactor containing 598.0 grams of water was heated to 94° C. A mixed monomer solution containing 275.0 grams of methacrylic acid and 46.2 grams of hydroxyethyl methacrylate was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes. The reaction product was held at 94° C. for an additional hour.
- A reactor containing 598.0 grams of water was heated to 94° C. A mixed monomer solution containing 309.0 grams of methacrylic acid and 7.6 grams of dimethyl aminoethyl methacrylate was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes. The reaction product was held at 94° C. for an additional hour. The reaction was cooled and then neutralized with ammonia solution to a pH of 7.0.
- A reactor containing 158.0 grams of water was heated to 94° C. A monomer solution containing 81.8 grams of methacrylic acid and 20 grams of hydroxyethylacrylate was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 21.2 grams of sodium persulfate in 127.5 grams of deionized water was simultaneously added to the reactor over a period of 3 hours and 50 minutes. The reaction product was held at 94° C. for an additional hour. The reaction was cooled and then neutralized with 75.2 grams of a 50% NaOH solution.
- A reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85C. A monomer solution containing 240 grams of acrylic acid and 60 grams of hydroxypropylacrylate (12.2 mole %) was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours. The reaction product was held at 85° C. for an additional hour. The isopropanol was then distilled using a Dean Stark trap. The reaction product was then partially neutralized using 17.6 grams of ammonium hydroxide (28%) solution and 52 grams of deionized water. The polymer solution had 51% solids and a pH of 2.7.
- A reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85° C. A monomer solution containing 274 grams of acrylic acid and 26 grams of hydroxypropylacrylate (5 mole %) was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours. The reaction product was held at 85° C. for an additional hour. The isopropanol was then distilled using a Dean Stark trap. The reaction product was then partially neutralized using 14 grams of ammonium hydroxide (28%) solution and 84 grams of deionized water. The polymer solution had 52% solids and a pH of 2.5.
- A reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85° C. A monomer solution containing 240 grams of acrylic acid and 53.4 grams of hydroxyethylacrylate (12.2 mole %) was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours. The reaction product was held at 85° C. for an additional hour. The isopropanol was then distilled using a Dean Stark trap. The reaction product was then partially neutralized using 12 grams of ammonium hydroxide (28%) solution and 52 grams of deionized water. The polymer solution had 51% solids and a pH of 2.5.
- A reactor containing 184.0 grams of water and 244 grams of isopropanol was heated to 85° C. A monomer solution containing 274grams of acrylic acid and 23.2 grams of hydroxyethylacrylate (5 mole %) was added to the reactor over a period of 3.5 hours. An initiator solution comprising of 15 grams of sodium persulfate in 100 grams of deionized water was simultaneously added to the reactor over a period of 4 hours. The reaction product was held at 85° C. for an additional hour. The isopropanol was then distilled using a Dean Stark trap. The reaction product was then diluted with 84 grams of deionized water. The polymer solution had 51% solids.
- 75.2 grams of a polyacrylic acid (ALCOSPERSE 602A from Alco Chemical) and 12.4 grams of triethanol amine (TEA) and 12.4 grams of water was mixed to form a homogenous solution.
- 75.2 grams of a polyacrylic acid (ALCOSPERSE 602A from Alco Chemical) and 12.4 grams of TEA and 5.0 grams of sodium hypophosphite and 7.4 grams of water was mixed to form a homogenous solution.
- A reactor containing 300 grams of water was heated to 95° C. A monomer solution containing 200 grams of acrylic acid and 100 grams of hydroxypropylacrylate was added to the reactor over a period of 2 hours. An initiator solution comprising of 9 grams of sodium persulfate in 60 grams of deionized water was simultaneously added to the reactor over a period of 2 hours and 15 minutes. The reaction product was held at 95° C. for 2 additional hours.
- A reactor containing 300 grams of water was heated to 95° C. A monomer solution containing 240grams of acrylic acid and 60 grams of hydroxypropylacrylate was added to the reactor over a period of 2 hours. An initiator solution comprising of 9 grams of sodium persulfate in 60 grams of deionized water was simultaneously added to the reactor over a period of 2 hours and 15 minutes. The reaction product was held at 95° C. for 2 additional hours.
- The testing protocol was as follows. 20 grams of each solution was poured into poly(methyl pentene) (PMP) petri dishes and placed overnight in a forced air oven set at 60° C. They were then cured by being placed for 10 minutes in a forced air oven set at 150° C. After cooling, the resulting films were evaluated in terms of physical appearance, flexibility, and tensile strength.
TABLE 1 SAMPLE # (H12-VIII) COMPOSITION APPEARANCE FLEXIBILITY TENSILE Example 9a 602A-HS/TEA “Swiss cheese”, Low flex, Breaks readily (Comparative) yellow-brown color breaks easily Example 9b Polyacrylic “Swiss cheese”, Slight Stretches, tensile (Comparative) acid/triethanol slight yellowing flexibility, slightly stronger amine/sodium breaks easily than control hypophosphite Example 10 PAA/30% HPA Very clear Forgiving when Very strong colorless film bent, very stiff Example 11 PAA/20% HPA Very clear Forgiving when Very strong colorless film bent, very stiff, does not shatter when broken
Claims (10)
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US11/275,561 US20060111002A1 (en) | 2002-10-29 | 2006-01-16 | Fiberglass nonwoven binder |
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US10/283,403 US20030219451A1 (en) | 2001-10-29 | 2002-10-29 | Stable helical C peptides and uses therefor |
US11/275,561 US20060111002A1 (en) | 2002-10-29 | 2006-01-16 | Fiberglass nonwoven binder |
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CN111032789A (en) * | 2017-09-05 | 2020-04-17 | 株式会社日本触媒 | Adhesive composition, anchor body, and method for producing anchor body |
CN111303323A (en) * | 2020-03-24 | 2020-06-19 | 湖南林特新材料科技有限责任公司 | Preparation method of hydrophilic and oil-repellent surface treating agent for glass fibers |
US11339576B2 (en) | 2019-09-17 | 2022-05-24 | Daltile Corporation | Floor element for forming a floor covering and a floor covering |
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