WO2001049801A1 - Release coating for tapes - Google Patents
Release coating for tapes Download PDFInfo
- Publication number
- WO2001049801A1 WO2001049801A1 PCT/US2000/034415 US0034415W WO0149801A1 WO 2001049801 A1 WO2001049801 A1 WO 2001049801A1 US 0034415 W US0034415 W US 0034415W WO 0149801 A1 WO0149801 A1 WO 0149801A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- release coating
- release
- alkyl
- copolymer
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 78
- 239000011248 coating agent Substances 0.000 title claims abstract description 52
- 229920000642 polymer Polymers 0.000 claims abstract description 51
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims abstract description 49
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000008199 coating composition Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims description 42
- 230000001070 adhesive effect Effects 0.000 claims description 42
- 239000000178 monomer Substances 0.000 claims description 42
- 229920001577 copolymer Polymers 0.000 claims description 26
- 239000000654 additive Substances 0.000 claims description 23
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 230000001737 promoting effect Effects 0.000 claims description 21
- 230000000996 additive effect Effects 0.000 claims description 18
- 239000004094 surface-active agent Substances 0.000 claims description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 10
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 10
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 10
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 10
- 230000002708 enhancing effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 6
- 125000005250 alkyl acrylate group Chemical group 0.000 claims description 6
- 229920001400 block copolymer Polymers 0.000 claims description 6
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims description 5
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims description 4
- 150000008360 acrylonitriles Chemical class 0.000 claims description 4
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 claims description 4
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 4
- PVEOYINWKBTPIZ-UHFFFAOYSA-N but-3-enoic acid Chemical class OC(=O)CC=C PVEOYINWKBTPIZ-UHFFFAOYSA-N 0.000 claims description 4
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 125000005375 organosiloxane group Chemical group 0.000 claims description 4
- 229920000233 poly(alkylene oxides) Polymers 0.000 claims description 4
- -1 siloxanes Chemical class 0.000 claims description 4
- 150000003871 sulfonates Chemical class 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract description 13
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 11
- 239000004816 latex Substances 0.000 description 10
- 229920000126 latex Polymers 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000000873 masking effect Effects 0.000 description 8
- 238000007720 emulsion polymerization reaction Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 5
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000002987 primer (paints) Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 238000012662 bulk polymerization Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010557 suspension polymerization reaction Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 229940117958 vinyl acetate Drugs 0.000 description 2
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 1
- 229920005719 BUTOFAN® NS 209 Polymers 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920005740 STYROFAN® Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 101710137710 Thioesterase 1/protease 1/lysophospholipase L1 Proteins 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 229920001688 coating polymer Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
- C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/08—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of nitriles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
- C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/12—Copolymers of styrene with unsaturated nitriles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D155/00—Coating compositions based on homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C09D123/00 - C09D153/00
- C09D155/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J155/00—Adhesives based on homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C09J123/00 - C09J153/00
- C09J155/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/414—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2409/00—Presence of diene rubber
- C09J2409/005—Presence of diene rubber in the release coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2425/00—Presence of styrenic polymer
- C09J2425/005—Presence of styrenic polymer in the release coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
- C09J2433/005—Presence of (meth)acrylic polymer in the release coating
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1452—Polymer derived only from ethylenically unsaturated monomer
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1462—Polymer derived from material having at least one acrylic or alkacrylic group or the nitrile or amide derivative thereof [e.g., acrylamide, acrylate ester, etc.]
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1476—Release layer
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- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
Definitions
- the present invention relates to release coatings, and in particular to release coatings which can be used in conjunction with pressure-sensitive adhesives.
- PSAs Pressure sensitive adhesives
- the adhesive is typically coated onto a "backing,” which includes any suitable substrate, such as films, foil, and paper.
- the adhesive may be coated onto one or both sides of the backing.
- the side of the backing coated with adhesive is referred to as the "adhesive- coated backing side.”
- the adhesive-coated backing is typically wound onto itself to form a roll, wherein the adhesive-coated backing side is in direct contact with the adhesive-free backing side of the continuous backing in the roll.
- tapes typically have two sides or surfaces: one side that is coated with a PSA, and the other side of the tape, which is free of adhesive.
- the adhesive layer it is, therefore advantageous for the adhesive layer to have a different affinity for one side of the tape than that of the opposite side (e.g., for the two sides) of the tape.
- Such differential affinity is typically achieved by two methods: the primer coating method and the release coating method.
- the primer coating method an adhesive that has a low affinity for the backing is selected, and a primer coat is used to make the adhesive layer bond strongly to the backing.
- Non-limiting examples of this method include solvent-based natural rubber adhesives coated onto unplasticized polyvinylchloride film and aqueous-based acrylic adhesives coated onto oriented polypropylene film, wherein the coated backing side has been "primed" by corona discharge treatment.
- a release coating is applied to the adhesive-free side of the tape and an adhesive is applied to the other side of the tape to form the adhesive-coated backing side.
- the release coating has a strong affinity for the backing but a weak affinity for the adhesive.
- the adhesive-free side of the backing, which is coated with a releasing agent, is referred to herein as the "release-coated backing side.”
- both sides of the backing may be coated with adhesive and a separate backing containing the release-coating (release-coated paper) may be applied to one or both sides of the adhesive-coated backing sides.
- a backing having both sides coated with adhesive is referred to herein as “double adhesive-coated backing", and the side or sides which contain the release-coated paper is referred to herein as the "release-coated paper side.”
- double adhesive-coated backing the side or sides which contain the release-coated paper
- release-coated paper side Such release coatings make it possible for the tape to be unwound from the roll (i) without using excessive force (low release peel force) and (ii) without causing the adhesive to adhere to the release-coated backing side.
- Release coatings should also have the following characteristics.
- the low affinity of the release coating toward the adhesive should be maintained over prolonged exposure to wide variations of temperature and humidity.
- the release coating should also strongly bond to the backing side so that it does not delaminate when aggressive adhesives are used.
- components of the release coating do not migrate into the adhesive, thereby deteriorating the properties of the adhesive.
- Conventional release coatings have been based on various polymers and copolymers prepared from monomers, such as alkylacrylates and alkylmethacrylates, vinylacetate, vinylchloride and acrylonitrile and combinations thereof. These monomers, however, are relatively expensive, and some of these monomers also require special and more expensive handling because of their toxicity. In addition, such conventional coatings often fail when the rolled tape is aged under heat and humidity.
- the present invention is directed to a release coating composition that includes (a) from about 20%> to about 55% by weight of a copolymer having a T g from 0°C to about 75°C, and (b) from about 45% to about 80% by weight of solvent.
- the copolymer has from 0% to about 50% by weight of acrylonitrile monomer, and from about 50%) to about 100%) by weight of butadiene and styrene monomers.
- the copolymer can further include one or more stability enhancing monomers.
- the release coating composition can further include a release promoting additive.
- the present invention is also directed to release coatings obtained from applying and drying the release coating composition.
- the present invention is directed to a release coating that includes (a) from about 80% to 100% by weight of a copolymer having a T g from 0°C to about 75°C, and (b) from 0% to about 20% by weight of a release promoting additive.
- the copolymer has from about 0% to about 50% by weight of acrylonitrile monomer, and from about 50% to about 100%) by weight of butadiene and styrene monomers.
- the present invention is directed to an article of manufacture, which includes (a) a backing having an adhesive-coated backing side, and (b) a release coating applied to the other side of the backing of (a) or a separate backing.
- the release coating is situated so that it is in contact with the adhesive-coated backing side.
- the release coating has from about 80% to about 100% by weight of a copolymer having a T g from 0°C to about 75°C, wherein the copolymer comprising from 0% to about 50% by weight of acrylonitrile monomer, and from about 50% to about 100%) by weight of butadiene and styrene monomers.
- the release coating of this article of manufacture can further include a release promoting additive.
- release coatings prepared from polymers of butadiene, styrene and acrylonitrile provide excellent, low release force even after prolonged exposure to heat and humidity.
- BSA polymer acrylonitrile
- pressure-sensitive adhesives are typically produced from hydrocarbon based polymers of styrene and butadiene, e.g., triblock styrene-butadiene-styrene polymers, it was believed that effective release coatings could not contain styrene and butadiene monomers.
- conventional release coatings have contained various polymers, prepared from monomers which chemically differ from styrene and butadiene, such as alkylacrylates and alkylmethacrylates, vinylacetate, vinylchloride, acrylonitrile, and combinations thereof.
- these conventional polymers used in release coatings are relatively expensive in comparison to the BSA polymers used in the present invention, and some also require special and more expensive handling because of their toxicity.
- the release coating compositions of the present invention include: (i) a polymer of butadiene, styrene, and acrylonitrile, and (ii) a solvent.
- the release coating compositions of the present invention further include one or more release promoting additives.
- the release coating compositions of the present invention include from about 20%) to about 55%>, preferably from about 30% to about 40% by weight of a polymer of butadiene, styrene and acrylonitrile ("BSA polymer”), from about 45% to about 80%), preferably from about 60%> to about 70% by weight of a solvent.
- BSA polymer polymer of butadiene, styrene and acrylonitrile
- the solvent can be any suitable fluid that can be evaporated at room temperature or upon applying heat.
- Preferred solvents those known in the art for use in emulsion polymerization, mass polymerization, and mass-suspension polymerization.
- solvents used in emulsion polymerization More preferred are solvents used in emulsion polymerization.
- preferred solvents include water, methanol, isopropanol, and mixtures thereof.
- T g means the glass-transition temperature of the polymer as determined by the Fox equation, which is described in
- the BSA polymers according to the present invention have from about 0%> to about 50%, preferably from about 5% to about 50% by weight of acrylonitrile monomer, and from about 50% to about 100%, preferably from about 50% to about 95% by weight of butadiene and styrene monomers. More preferably, the BSA polymers have from about 15%) to about 40%) by weight of acrylonitrile monomer and from about 60% to about 85% by weight of butadiene and styrene monomers.
- the BSA polymers contain (i) from about 10%> to about 35%, preferably from about 15%> to about 25% by weight of butadiene monomer, and (ii) from about 25%> to about 75%, preferably from about 45% to about 55% by weight of styrene monomer.
- the BSA polymers according to the present invention can be manufactured according to any polymerization process known in the art. Such polymerization processes include, but are not limited to, emulsion polymerization, mass polymerization, and mass-suspension polymerization, as described in Kirk-Othmer, Encyclopedia of Chemical Technology, 4 th Ed. Vol. 1, pp. 396-398. Preferably, the BSA polymers are manufactured by emulsion polymerization process. In one embodiment, the BSA polymers of the present invention further include from about 0.50%o to about 15%, preferably from about 1.0% to about 10% of at least one stability enhancing monomers.
- stability enhancing monomers means a monomer that provides colloidal stability for the polymer during emulsion polymerization and/or improves polymer properties, such as tensile strength.
- stability enhancing monomers include, but are not limited to, acrylic acid; itaconic acid; acrylamide, such as N-methylolacrylamide; fumaric acid; methacrylic acid; maleic acid; and the like.
- the BSA polymers of the present invention include from about 0.5% to about 3.0%o by weight of acrylic acid monomer, from 0% to about 1.5% by weight of itaconic acid monomer, and from 0.5% to about 3.0% by weight of acrylamide monomer.
- the release coating compositions of the present invention further include from about 1% to about 15% by weight of a release promoting additive, which is post-added.
- Post-added means that the additive is added after polymerization of the polymer is completed. Without wanting to be limited by any one theory, it is believed that these release promoting additives help to maintain or enhance the release properties of the release coating.
- release promoting additives useful herein include, but are not limited to, anionic surface active agents, cationic surface active agents, zwitter-ionic surface active agents, non-ionic surface active agents, and mixtures thereof.
- these surface active agents contain C8-C22 alkyl chains, C8-C22 alkyl substituted aryls, silicon atoms, fluorine atoms, and combinations thereof, as described in "Handbook of Pressure-Sensitive Adhesive Technology," ed. D. Satas, Satas & Associates, Warwick, RI, 1999, Chap. 26, pps. 637- 646..
- Non-limiting examples of useful release promoting additives include N-alkyl sulfosuccinamates, dialkyl sulfosuccinates, alkyl sulfates and sulfonates, alkyl- polyalkyleneoxidesulfates, alkyl-aryl-polyalkyleneoxidesulfates, alkyl-aryl-sulfonates, alkylpolyalkyleneoxides, alkyl-aryl-polyalkyleneoxides, block copolymers of alkyloxides, and mixtures thereof.
- release promoting additives useful herein include, but are not limited to, Aerosol A-22 (manufactured by Cytec Industries Inc., located in West Paterson, NJ), Iconol OP40 and Pluronic 62 (both manufactured by BASF Corporation, Mount Olive, NJ), Ammonyx SO (manufactured by Stepan Company, Northfield, IL) and mixtures thereof.
- Aerosol A-22 manufactured by Cytec Industries Inc., located in West Paterson, NJ
- Iconol OP40 and Pluronic 62 both manufactured by BASF Corporation, Mount Olive, NJ
- Ammonyx SO manufactured by Stepan Company, Northfield, IL
- the release coating compositions of the present invention can further include polymers that are known and conventionally used in release coatings.
- the release coating composition can further include from 0% to about 95%o, preferably from 0%> to about 50% by weight of a conventional release coating homopolymer and/or copolymer prepared from monomers selected from the group consisting of alkylacrylates and alkylmethacrylates, vinylacetates, vinylchlorides, acrylonitriles, siloxanes, organo-siloxanes, and combinations thereof.
- a conventional release coating homopolymer and/or copolymer prepared from monomers selected from the group consisting of alkylacrylates and alkylmethacrylates, vinylacetates, vinylchlorides, acrylonitriles, siloxanes, organo-siloxanes, and combinations thereof.
- the BSA polymers of the present invention would be mixed with such conventional release coating polymers to form a blend of the polymers.
- the present invention is directed to an article of manufacture including a backing having an adhesive-coated backing side and a release- coated backing side, as described above.
- the backing is wound onto itself so that the adhesive-coated backing side is placed in physical contact with the release-coated backing side.
- the dry release coating includes from about 80% to about 100%) by weight of the BSA polymer.
- the dry release coating can further include up to about 20% by weight of a release promoting additive.
- one or both sides of the backing can be coated with adhesive (double adhesive-coated backing), and a release-coated paper having a release coating, as described above, on a separate backing is placed in physical contact with one or both sides of the adhesive-coated backing sides.
- Pressure sensitive adhesives that are useful according to the present invention are conventional materials typically used and known in the art.
- Examples of pressure sensitive adhesives include, but are not limited to, natural rubber adhesives; butyl rubber adhesives; vinyl ether adhesives; acrylic adhesives; solvent-based rubber adhesives including cis-l,4-polyisoprene; block copolymer adhesives including styrene-butadiene-styrene block and styrene-isoprene-styrene block copolymers; hot- melt block copolymer adhesives; synthetic rubbers including styrene-butadiene rubber; silicone based pressure sensitive adhesives; and the like.
- Backings that are useful according to the present invention are any suitable substrates known in the art.
- useful backings include, but are not limited to, films, foil, paper, nonwovens, wovens and composites thereof.
- the release coating and the adhesive coating can be applied to the backing using conventional methods known in the art, such as knife coating, roller coating and print coating. After the coatings are applied to the backing, they may be dried by any heating method that is well known in the art.
- the dry thickness of the release coatings are from about 0.1 to about 0.5 mils according to the selection of backing, pressure-sensitive adhesive, and coating technique. Dry release coating thicknesses from about 0.2 to about 0.35 mils are preferred. For the BSA polymers of the present invention, 0.39 mils is equal to about 10 g/m .
- A. Preparation of the Polymer Composition The following preparation method utilized a conventional emulsion polymerization process.
- a 1-gallon reactor was initially charged with 114.9 grams of de-ionized water, 50.37 grams of seed latex, 1.19 grams of DISSOLVINE E-39 (chelating agent) and 9.51 grams of itaconic acid.
- the reactor was heated to 90 °C and an initial dosage of 114.0 grams of 5% by weight water solution of ammonium persulfate was added to the reactor. Then four feeds were added to the reactor: an aqueous feed over 3.5 hours, a monomer feed over 3.5 hours, a butadiene feed over 3.5 hours, and a catalyst feed over 4.75 hours.
- the aqueous feed included 178.5 grams of water, 55.6 grams of CALFOAM ES-303 (28% active by weight), 29.8 grams of acrylamide (50%> active by weight), and 51.8 grams of acrylic acid (100%. active by weight).
- the liquid monomer feed included 23.7 grams of t-dodecyl mercaptan, 404.7 grams of acrylonitrile, and 1204 grams of styrene.
- the butadiene feed included 285.3 grams of butadiene.
- the catalyst feed included 266.6 grams of 5% (w/w) ammonium persulfate.
- the latex had a pH of about 7 and a total solids concentration of 49.1%> by weight, indicating substantially complete conversion of all monomers into BSA polymer.
- the polymeric composition of this latex sample calculated on mass balance basis was 56% by weight of styrene, 20.5%> by weight of acrylonitrile, 20.0%> by weight of butadiene, 0.5% by weight of itaconic acid, 2.33% by weight of acrylic acid, and 0.67%> by weight of acrylamide.
- the latex composition was obtained by diluting 100 grams of the latex composition produced in Example 1 (49.1%) solids) with 96.4 grams of water to give 196.4 of a latex composition having 25% by weight total solids.
- the wet coating was dried at 150°C for 90 seconds resulting in a dry coating having a thickness of about 0.00018 inch, which is the typical thickness of release coatings used in the masking tape industry.
- the thickness was determined by weighing 3" x 3" square paper before and after coating, and using the relation of 0.39 mils for about 10 g/m 2 .
- Strips of commercial masking tape (2" General Purpose 10404 masking tape manufactured by TESA TAPE Inc., located in Charlotte, NC) were then adhered to the crepe paper now coated with the release coating. It is believed that 2" General Purpose 10404 masking tape had a solvent based tackified natural rubber adhesive.
- Comparative Examples 3-6 were also conducted utilizing the same crepe, polymer-saturated paper, commercial masking tape and testing conditions as described in Examples 1 and 2. In Comparative Example 3, no release coating was used. In Comparative Example 4, a conventional carboxylated styrene-butadiene rubber polymer (XSBR) having a desired high glass transition temperature of about 42 °C was used to prepare the release coating.
- XSBR carboxylated styrene-butadiene rubber polymer having a desired high glass transition temperature of about 42 °C was used to prepare the release coating.
- the XSBR having the trade name Styrofan ND 834, was obtained from BASF Corporation, located in Mount Olive, NJ.
- release coatings having the same thickness as Example 1 were prepared from commercially available acrylic-based release coating compositions R&H R-253 (believed to contain a polymer of ethyl-acrylate and acrylonitrile with a post-added release promoting additive) and R&H WH-130 (believed to contain a polymer of ethyl-acrylate and acrylonitrile), respectively, obtained from Rohm and Haas Company. These examples are provided for comparisons for release coating performance.
- Table 1 shows that Invention Example 1 (BSA polymer without post- added release additive) and Invention Example 2 (BSA polymer with 2% by weight of AEROSOL A-22) provided release characteristics with a peel force between 15-25 oz/2 inches, which is within the definition of "tight release,” as described in "Handbook of Pressure-Sensitive Adhesive Technology," ed. D. Satas, Satas & Associates, Warwick, RI, 1999, Chap. 26, Table 1, pg. 635. More importantly, the peel force values for the aged by heat and humidity test samples were lower than the peel force values of the aged by heat only test samples.
- Comparative Example 3 no release coating
- Comparative Example 4 release coating containing commercially available conventional XSBR polymer
- the release coatings of Comparative Example 5 provided low peel force.
- the peel force value of the aged by heat and humidity sample was higher than the peel force value of the aged by heat sample.
- the release coatings of Comparative Example 6 failed in the humidity test with too low a release force.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU21102/01A AU2110201A (en) | 2000-01-05 | 2000-12-19 | Release coating for tapes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/477,708 | 2000-01-05 | ||
US09/477,708 US6455153B1 (en) | 2000-01-05 | 2000-01-05 | Release coating for tapes |
Publications (1)
Publication Number | Publication Date |
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WO2001049801A1 true WO2001049801A1 (en) | 2001-07-12 |
Family
ID=23897024
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/008023 WO2001049798A1 (en) | 2000-01-05 | 2000-08-17 | Release coating for tapes |
PCT/US2000/034415 WO2001049801A1 (en) | 2000-01-05 | 2000-12-19 | Release coating for tapes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/008023 WO2001049798A1 (en) | 2000-01-05 | 2000-08-17 | Release coating for tapes |
Country Status (5)
Country | Link |
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US (2) | US6455153B1 (en) |
EP (1) | EP1246880A1 (en) |
AU (1) | AU2110201A (en) |
CA (1) | CA2311033C (en) |
WO (2) | WO2001049798A1 (en) |
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EP1184415A3 (en) * | 2000-08-30 | 2003-08-06 | JSR Corporation | Conjugated diene-based rubber, oil extended rubber and rubber composition containing the same |
US7399117B2 (en) * | 2005-12-09 | 2008-07-15 | Con-Trol-Cure, Inc. | Thin film calorimeter |
CN101085884A (en) * | 2006-06-06 | 2007-12-12 | 罗门哈斯公司 | Release coating and process |
US20080102240A1 (en) * | 2006-10-27 | 2008-05-01 | Covalence Specialty Materials Corp. | Polymeric composite adhesive tape |
WO2017154226A1 (en) | 2016-03-09 | 2017-09-14 | 三菱樹脂株式会社 | Adhesive film and method for producing same |
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EP0835916A2 (en) * | 1996-10-10 | 1998-04-15 | STEINBEIS GESSNER GmbH | Adhesive article consisting of an upper material, an adhesive layer and a silicone free support |
JPH10264331A (en) * | 1997-03-26 | 1998-10-06 | Oji Paper Co Ltd | Release paper |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) * |
Also Published As
Publication number | Publication date |
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US6455153B1 (en) | 2002-09-24 |
CA2311033C (en) | 2009-10-20 |
CA2311033A1 (en) | 2001-07-05 |
US20020164477A1 (en) | 2002-11-07 |
WO2001049798A1 (en) | 2001-07-12 |
AU2110201A (en) | 2001-07-16 |
EP1246880A1 (en) | 2002-10-09 |
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