CA2481435A1 - Use of hydrophobically modified copolymers based on n-vinyl monomers for the production of membranes - Google Patents
Use of hydrophobically modified copolymers based on n-vinyl monomers for the production of membranes Download PDFInfo
- Publication number
- CA2481435A1 CA2481435A1 CA002481435A CA2481435A CA2481435A1 CA 2481435 A1 CA2481435 A1 CA 2481435A1 CA 002481435 A CA002481435 A CA 002481435A CA 2481435 A CA2481435 A CA 2481435A CA 2481435 A1 CA2481435 A1 CA 2481435A1
- Authority
- CA
- Canada
- Prior art keywords
- carboxylic acids
- weight
- monoethylenically unsaturated
- polymers
- alkyl
- 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.)
- Granted
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract 11
- 239000012528 membrane Substances 0.000 title claims abstract 8
- 239000000178 monomer Substances 0.000 title claims abstract 6
- 229920002554 vinyl polymer Polymers 0.000 title abstract 3
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract 20
- 150000001408 amides Chemical class 0.000 claims abstract 10
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 claims abstract 6
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims abstract 5
- 125000001931 aliphatic group Chemical group 0.000 claims abstract 5
- 229920001567 vinyl ester resin Polymers 0.000 claims abstract 5
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 claims abstract 3
- PBGPBHYPCGDFEZ-UHFFFAOYSA-N 1-ethenylpiperidin-2-one Chemical compound C=CN1CCCCC1=O PBGPBHYPCGDFEZ-UHFFFAOYSA-N 0.000 claims abstract 3
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 claims abstract 3
- -1 alkyl vinyl ether Chemical compound 0.000 claims abstract 2
- 229920000642 polymer Polymers 0.000 claims 8
- 239000000203 mixture Substances 0.000 claims 4
- 229920001223 polyethylene glycol Polymers 0.000 claims 4
- 229920002635 polyurethane Polymers 0.000 claims 4
- 239000004814 polyurethane Substances 0.000 claims 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 4
- 229920002678 cellulose Polymers 0.000 claims 3
- 239000001913 cellulose Substances 0.000 claims 3
- 229920001477 hydrophilic polymer Polymers 0.000 claims 3
- 229920001600 hydrophobic polymer Polymers 0.000 claims 3
- 239000004952 Polyamide Substances 0.000 claims 2
- 239000002202 Polyethylene glycol Substances 0.000 claims 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 2
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical compound NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 claims 2
- 229920002492 poly(sulfone) Polymers 0.000 claims 2
- 229920000058 polyacrylate Polymers 0.000 claims 2
- 229920002647 polyamide Polymers 0.000 claims 2
- 239000004417 polycarbonate Substances 0.000 claims 2
- 229920000515 polycarbonate Polymers 0.000 claims 2
- 229920000570 polyether Polymers 0.000 claims 2
- 229920000136 polysorbate Polymers 0.000 claims 2
- 229940068965 polysorbates Drugs 0.000 claims 2
- 239000004800 polyvinyl chloride Substances 0.000 claims 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920002301 cellulose acetate Polymers 0.000 claims 1
- 229920001220 nitrocellulos Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 229920000151 polyglycol Polymers 0.000 claims 1
- 239000010695 polyglycol Substances 0.000 claims 1
- 125000005907 alkyl ester group Chemical group 0.000 abstract 1
Classifications
-
- 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
- C08F226/00—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 a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F226/06—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 a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/402—Polymers based on the polymerisation of fumaric acid or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/403—Polymers based on the polymerisation of maleic acid or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/404—Polymers based on the polymerisation of crotonic acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
- B01D71/441—Polyvinylpyrrolidone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/04—Hydrophobization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/12—Specific ratios of components used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/022—Asymmetric membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/56—Polyamides, e.g. polyester-amides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
Abstract
The invention relates to the use of A copolymers containing a) 50 to 99 percent by weight of at least one N-vinyl lactam or N-vinyl amine, selected among the group comprising N-vinyl pyrrolidone, N-vinyl piperidone, N-vinyl caprolactam, N-vinyl imidazole, methylized N-vinyl imidazole, and N-vinyl formamide, and b) 1 to 50 percent by weight of at least one monomer, selected among one of the groups comprising b1) C8-C30 alkyl ester of monoethylenically unsaturated C3-C8 carboxylic acids; b2) N-C8-C30 alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids; b3) N,N-C8-C30 dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl ester of aliphatic C8-C30 carboxylic acids; b5) C8-C30 alkyl vinyl ether, for the production of membranes.
b4) vinyl ester of aliphatic C8-C30 carboxylic acids; b5) C8-C30 alkyl vinyl ether, for the production of membranes.
Claims (11)
1. The use of a copolymer A containing a) from 50 to 99% by weight of at least one N-vinyllactam or N-vinylamine selected from the group consisting of N-vinylpyrrolidone, N-vinylpiperidone, N-vinylcaprolactam, N-vinylimidazole, methylated N-vinylimidazole, and N-vinylformamide, and b) from 1 to 50% by weight of at least one monomer selected from the group consisting of b1) C8-C30-alkyl esters of monoethylenically unsaturated C3-C8 carboxylic acids;
b2) N-C8-C30-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C8-C30-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C30 carboxylic acids;
and b5) C8-C30-alkyl vinyl ethers to produce a membrane, the membrane comprising, as further component, hydrophobic polymers B selected from the group consisting of polysulfones, polycarbonates, polyamides, polyvinyl chloride, hydrophobically modified acrylic polymers, polyethers, polyurethanes, polyurethane copolymers, water-insoluble cellulose derivatives, and mixtures of such polymers.
b2) N-C8-C30-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C8-C30-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C30 carboxylic acids;
and b5) C8-C30-alkyl vinyl ethers to produce a membrane, the membrane comprising, as further component, hydrophobic polymers B selected from the group consisting of polysulfones, polycarbonates, polyamides, polyvinyl chloride, hydrophobically modified acrylic polymers, polyethers, polyurethanes, polyurethane copolymers, water-insoluble cellulose derivatives, and mixtures of such polymers.
2. The use as claimed in claim 1 of a copolymer A containing a) from 60 to 99% by weight of N-vinylpyrrolidone and b) from 1 to 40% by weight of at least one monomer selected from the group consisting of b1) C8-C30-alkyl esters of monoethylenically unsaturated C3-C8 carboxylic acids;
b2) N-C8-C30-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C8-C30-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C30 carboxylic acids;
and b5) C8-C30-alkyl vinyl ethers.
b2) N-C8-C30-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C8-C30-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C30 carboxylic acids;
and b5) C8-C30-alkyl vinyl ethers.
3. The use as claimed in claim 1 or 2 of copolymer A containing a) from 60 to 99% by weight of N-vinylpyrrolidone and b) from 1 to 40% by weight of at least one monomer selected from the group consisting of b1) C12-C22-alkyl esters of monoethylenically unsaturated C3-C8 carboxylic acids;
b2) N-C12-C18-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C12-C18-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C18 carboxylic acids;
and b5) C8-C22-alkyl vinyl ethers.
b2) N-C12-C18-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C12-C18-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C18 carboxylic acids;
and b5) C8-C22-alkyl vinyl ethers.
4. The use as claimed in any of claims 1 to 4, wherein the copolymer A is used in amounts of from 0.1 to 25% by weight, based on the total amount of polymers used.
5. The use as claimed in any of claims 1 to 4, wherein the copolymer A is used in combination with one or more further polymers.
6. The use as claimed in any of claims 1 to 5, wherein the hydrophobic polymers B are used in amounts of from 50 to 99.9 by weight, based on the total amount of polymers used.
7. The use as claimed in any of claims 1 to 6, wherein the membrane further comprises, as polymers C, hydrophilic polymers selected from the group consisting of polyvinylpyrrolidones, polyethylene glycols, polyethylene glycol monoesters, polyethylene glycol-propylene glycol copolymers, water-soluble cellulose derivatives, polysorbates, and mixtures of such polymers.
8. The use as claimed in claim 7, wherein the hydrophilic polymers C are used in amounts of from 10 to 40% by weight, based on the total amount of polymers used.
9. A semipermeable, water-wettable membrane comprising at least one copolymer A formed from a) from 50 to 99% by weight of at least one N-vinyllactam or N-vinylamine selected from the group consisting of N-vinylpyrrolidone, N-vinylpiperidone, N-vinylcaprolactam, N-vinylimidazole, methylated N-vinylimidazole, and N-vinylformamide, and b) from 1 to 50% by weight of at least one monomer selected from the group consisting of b1) C8-C30-alkyl esters of monoethylenically unsaturated C3-C8 carboxylic acids;
b2) N-C8-C30-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C8-C30-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C30 carboxylic acids;
and b5) C8-C30-alkyl vinyl ethers, and, as hydrophobic polymer component B, a polymer selected from the group consisting of polysulfones, polycarbonates, polyamides, polyvinyl chloride, hydrophobically modified acrylic polymers, polyethers, polyurethanes, polyurethane copolymers, cellulose acetates, cellulose nitrates, and mixtures thereof.
b2) N-C8-C30-alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b3) N,N-C8-C30-dialkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids;
b4) vinyl esters of aliphatic C8-C30 carboxylic acids;
and b5) C8-C30-alkyl vinyl ethers, and, as hydrophobic polymer component B, a polymer selected from the group consisting of polysulfones, polycarbonates, polyamides, polyvinyl chloride, hydrophobically modified acrylic polymers, polyethers, polyurethanes, polyurethane copolymers, cellulose acetates, cellulose nitrates, and mixtures thereof.
10. A membrane as claimed in claim 9, obtainable using a copolymer A in amounts of from 0.1 to 25% by weight.
11. A membrane as claimed in claim 9 or 10 comprising in addition a hydrophilic polymer C selected from the group consisting of polyvinylpyrrolidones, polyethylene glycols, polyglycol monoesters, copolymers of polyethylene glycol with propylene glycol, water-soluble derivatives of cellulose, polysorbates, and mixtures thereof.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10217440A DE10217440A1 (en) | 2002-04-18 | 2002-04-18 | Use of hydrophobically modified copolymers based on N-vinyl monomers for the production of membranes |
DE10217440.7 | 2002-04-18 | ||
PCT/EP2003/003764 WO2003086594A1 (en) | 2002-04-18 | 2003-04-11 | Use of hydrophobically modified copolymers based on n-vinyl monomers for the production of membranes |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2481435A1 true CA2481435A1 (en) | 2003-10-23 |
CA2481435C CA2481435C (en) | 2011-02-01 |
Family
ID=28798565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2481435A Expired - Fee Related CA2481435C (en) | 2002-04-18 | 2003-04-11 | Use of hydrophobically modified copolymers based on n-vinyl monomers for the production of membranes |
Country Status (8)
Country | Link |
---|---|
US (1) | US7347938B2 (en) |
EP (1) | EP1499426B1 (en) |
JP (1) | JP4443231B2 (en) |
AT (1) | ATE321602T1 (en) |
AU (1) | AU2003229642A1 (en) |
CA (1) | CA2481435C (en) |
DE (2) | DE10217440A1 (en) |
WO (1) | WO2003086594A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10343901A1 (en) * | 2003-09-19 | 2005-04-14 | Basf Ag | Amide group-containing ethylene terpolymers and their use |
DE102004058952A1 (en) * | 2004-12-07 | 2006-06-14 | Basf Ag | Process for preparing aqueous secondary dispersions of water-insoluble polymers |
DE102009006586B4 (en) * | 2009-01-29 | 2013-02-28 | Neenah Gessner Gmbh | Filter medium and filter element for the liquid filtration |
US9193815B2 (en) * | 2010-03-04 | 2015-11-24 | Sekisui Chemical Co., Ltd. | Polymer membrane for water treatment and method for manufacture of same |
EP3134250B1 (en) | 2014-04-25 | 2023-11-15 | Carbon, Inc. | Continuous three dimensional fabrication from immiscible liquids |
JP6939547B2 (en) * | 2016-02-29 | 2021-09-22 | 東レ株式会社 | Laminated semipermeable membrane |
EP3616778B1 (en) * | 2017-04-28 | 2022-10-26 | Toray Industries, Inc. | Semipermeable composite membrane and method for producing same |
CN110860211B (en) * | 2019-11-29 | 2021-10-19 | 绿邦膜分离技术(江苏)有限公司 | Preparation method of homogeneous phase PVC-based anion exchange membrane |
CN112870980B (en) * | 2021-01-11 | 2022-10-21 | 宁波方太厨具有限公司 | Preparation method of nanofiltration membrane with adjustable desalination rate |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US4304591A (en) * | 1978-01-25 | 1981-12-08 | Ciba-Geigy Corporation | Water-insoluble hydrophilic copolymers used as carriers for medicaments and pesticides |
US4268641A (en) * | 1979-04-24 | 1981-05-19 | Union Carbide Corporation | Acrylic acid-acrylate copolymer thickening agents |
DE3149976A1 (en) | 1981-12-17 | 1983-06-30 | Hoechst Ag, 6230 Frankfurt | MACROPOROUS ASYMMETRIC HYDROPHILE MEMBRANE MADE OF SYNTHETIC POLYMER |
DE3271691D1 (en) * | 1981-12-21 | 1986-07-17 | Aligena Ag | Semipermeable membranes of modified polystyrene, process for their manufacture and their use |
CH660852A5 (en) * | 1982-11-23 | 1987-05-29 | Aligena Ag | DYNAMIC MEMBRANES THAT ARE THIN THIN POLYMER LAYERS ON POROUS, POLYMER CARRIER MATERIALS. |
DE3426331A1 (en) | 1984-07-17 | 1986-01-30 | 6380 Bad Homburg Fresenius AG | ASYMMETRIC MICROPOROUS HOLLOW FIBER FOR HAEMODIALYSIS AND METHOD FOR THE PRODUCTION THEREOF |
DE3434822A1 (en) * | 1984-09-22 | 1986-04-03 | Bayer Ag, 5090 Leverkusen | MEMBRANE FOR REAGENT CARRIER LAYERS, METHOD FOR THE PRODUCTION THEREOF, AND THEIR USE IN ANALYTICAL AGENTS AND ANALYZING METHOD |
US4976897A (en) * | 1987-12-16 | 1990-12-11 | Hoechst Celanese Corporation | Composite porous membranes and methods of making the same |
DE4123602A1 (en) | 1991-07-17 | 1993-01-21 | Bayer Ag | MEMBRANES OF AROMATIC HETEROCYCLIC POLYAMIDES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE |
US5411580A (en) * | 1991-07-31 | 1995-05-02 | Praxair Technology, Inc. | Oxygen-separating porous membranes |
EP0550798A1 (en) | 1991-10-04 | 1993-07-14 | Kawasumi Laboratories, Inc. | Polysulfone hollow fibre membrane |
US5407581A (en) * | 1992-03-17 | 1995-04-18 | Asahi Medical Co., Ltd. | Filter medium having a limited surface negative charge for treating a blood material |
DE59405007D1 (en) | 1993-07-30 | 1998-02-19 | Bayer Ag | Membranes made from acrylonitrile copolymers, process for their preparation and their use |
ES2197249T3 (en) * | 1995-10-09 | 2004-01-01 | Asahi Kasei Kabushiki Kaisha | POLISULFONE MEMBRANE FOR BLOOD PURIFICATION. |
DE19627204A1 (en) * | 1996-07-05 | 1998-01-08 | Basf Ag | Cosmetic or pharmaceutical compositions for use on the skin |
DE19719187A1 (en) | 1997-05-07 | 1998-11-12 | Basf Ag | Use of copolymers of N-vinyl-pyrrolidone in preparations of water-insoluble substances |
US5942120A (en) * | 1997-12-04 | 1999-08-24 | Wilkinson; Kenneth | Composite microporous ultrafiltration membrane, method of making thereof, and separation methods |
DE19814730A1 (en) * | 1998-04-02 | 1999-10-07 | Basf Ag | Pharmaceutical and cosmetic compositions with matrix containing N-vinyllactam or N-vinylamine based copolymer |
DE19817364C1 (en) | 1998-04-18 | 1999-07-08 | Fresenius Medical Care De Gmbh | Hydrophilic asymmetric membrane used in ultrafiltration and reverse osmosis |
DE19829397A1 (en) * | 1998-07-01 | 2000-01-05 | Basf Ag | Use of micro-phase separated polymer mixtures for the production of permeable membranes |
AU2001264623A1 (en) * | 2000-05-16 | 2001-11-26 | Biocure, Inc. | Membranes formed from amphiphilic copolymers |
US7108787B2 (en) | 2000-07-27 | 2006-09-19 | Nof Corporation | Modified hollow-fiber membrane |
FR2820057A1 (en) * | 2001-01-30 | 2002-08-02 | Ct De Transfert De Technologie | MEMBRANE FOR ENCAPSULATING CHAMBER OF CELLS PRODUCING AT LEAST ONE BIOLOGICALLY ACTIVE SUBSTANCE AND BIO-ARTIFICIAL ORGAN COMPRISING SUCH A MEMBRANE |
US6596167B2 (en) | 2001-03-26 | 2003-07-22 | Koch Membrane Systems, Inc. | Hydrophilic hollow fiber ultrafiltration membranes that include a hydrophobic polymer and a method of making these membranes |
-
2002
- 2002-04-18 DE DE10217440A patent/DE10217440A1/en not_active Withdrawn
-
2003
- 2003-04-11 DE DE50302817T patent/DE50302817D1/en not_active Expired - Lifetime
- 2003-04-11 AT AT03722446T patent/ATE321602T1/en not_active IP Right Cessation
- 2003-04-11 JP JP2003583598A patent/JP4443231B2/en not_active Expired - Fee Related
- 2003-04-11 WO PCT/EP2003/003764 patent/WO2003086594A1/en active IP Right Grant
- 2003-04-11 CA CA2481435A patent/CA2481435C/en not_active Expired - Fee Related
- 2003-04-11 AU AU2003229642A patent/AU2003229642A1/en not_active Abandoned
- 2003-04-11 US US10/507,362 patent/US7347938B2/en not_active Expired - Fee Related
- 2003-04-11 EP EP03722446A patent/EP1499426B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JP2005527351A (en) | 2005-09-15 |
DE10217440A1 (en) | 2003-11-06 |
ATE321602T1 (en) | 2006-04-15 |
WO2003086594A1 (en) | 2003-10-23 |
US20050126987A1 (en) | 2005-06-16 |
JP4443231B2 (en) | 2010-03-31 |
US7347938B2 (en) | 2008-03-25 |
CA2481435C (en) | 2011-02-01 |
EP1499426A1 (en) | 2005-01-26 |
DE50302817D1 (en) | 2006-05-18 |
AU2003229642A1 (en) | 2003-10-27 |
EP1499426B1 (en) | 2006-03-29 |
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