IL140337A - Process for preparing a polyvinyl alcohol gel containing a biologically active material - Google Patents
Process for preparing a polyvinyl alcohol gel containing a biologically active materialInfo
- Publication number
- IL140337A IL140337A IL14033799A IL14033799A IL140337A IL 140337 A IL140337 A IL 140337A IL 14033799 A IL14033799 A IL 14033799A IL 14033799 A IL14033799 A IL 14033799A IL 140337 A IL140337 A IL 140337A
- Authority
- IL
- Israel
- Prior art keywords
- polyvinyl alcohol
- aqueous
- preparing
- solution
- active material
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of 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 alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of 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 alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
Abstract
A polyvinyl alcohol gel can be easily and quickly produced by a process having the following steps: (a) use of an aqueous polyvinyl alcohol solution with a degree of hydrolysis >/=98 % by moles; (b) admixture of an additive that is dissolved in the aqueous polyvinyl alcohol solution and forms a separate, finely distributed and aqueous phase after concentration of the solution; (c) drying of the aqueous solution to a residual water content of maximum 50 wt. % to cause the phases to separate and hence the polyvinyl alcohol to gel; (d) rehydrating the polyvinyl alcohol in an aqueous medium.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19827552A DE19827552C1 (en) | 1998-06-20 | 1998-06-20 | Process for producing a gel from polyvinyl alcohol and mechanically highly stable gel produced by the process |
PCT/DE1999/000975 WO1999067320A1 (en) | 1998-06-20 | 1999-03-30 | Process for preparing a polyvinyl alcohol gel and mechanically highly stable gel produced by this process |
Publications (2)
Publication Number | Publication Date |
---|---|
IL140337A0 IL140337A0 (en) | 2002-02-10 |
IL140337A true IL140337A (en) | 2005-08-31 |
Family
ID=7871521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL14033799A IL140337A (en) | 1998-06-20 | 1999-03-30 | Process for preparing a polyvinyl alcohol gel containing a biologically active material |
Country Status (19)
Country | Link |
---|---|
EP (1) | EP1091996B1 (en) |
JP (1) | JP2002518570A (en) |
KR (1) | KR20010053046A (en) |
AT (1) | ATE285433T1 (en) |
AU (1) | AU746982B2 (en) |
BG (1) | BG64957B1 (en) |
BR (1) | BR9911393A (en) |
CA (1) | CA2334661A1 (en) |
CZ (1) | CZ294179B6 (en) |
DE (2) | DE19827552C1 (en) |
DK (1) | DK1091996T3 (en) |
ES (1) | ES2230856T3 (en) |
HK (1) | HK1032410A1 (en) |
HU (1) | HU227366B1 (en) |
IL (1) | IL140337A (en) |
MX (1) | MX229185B (en) |
PL (1) | PL194759B1 (en) |
SK (1) | SK284467B6 (en) |
WO (1) | WO1999067320A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1713851A2 (en) * | 2004-02-04 | 2006-10-25 | Cambridge Polymer Group, Inc. | Systems and methods for controlling and forming polymer gels |
JP5482982B2 (en) | 2006-03-13 | 2014-05-07 | レンティカッツ, アー.エス. | Industrial production method of biocatalyst having enzyme or microorganism fixed on polyvinyl alcohol gel, its use and production apparatus |
US7731988B2 (en) * | 2007-08-03 | 2010-06-08 | Zimmer, Inc. | Multi-polymer hydrogels |
WO2013051648A1 (en) * | 2011-10-07 | 2013-04-11 | Igaバイオリサーチ株式会社 | Method and apparatus for decomposing biological substance |
JP6380003B2 (en) * | 2014-10-29 | 2018-08-29 | Jnc株式会社 | Microorganism culture equipment and microorganism detection method |
DE102016007662A1 (en) | 2015-11-27 | 2017-06-01 | Instraction Gmbh | Filter cartridge for cleaning water |
CN105315589A (en) * | 2015-12-01 | 2016-02-10 | 惠安华晨贸易有限公司 | Production process of plastics for producing garbage bags |
WO2018083093A1 (en) | 2016-11-01 | 2018-05-11 | Novozymes A/S | Multi-core granules |
DE102019105019B4 (en) | 2019-02-27 | 2022-08-25 | Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh | Use of a liquid formulation to form elastic, stable, biodegradable polymer films |
NL2024726B1 (en) | 2020-01-22 | 2021-09-09 | Biomosae B V | Enzymatic crop protection and process for preparing biological crop protection composition |
US20230034857A1 (en) * | 2020-09-15 | 2023-02-02 | Lg Chem, Ltd. | Microcarrier for cell culture and method for preparing the same |
CN113214584B (en) * | 2021-05-07 | 2023-03-28 | 珠海鹏鲲生物医药科技有限公司 | Composite hydrogel and preparation method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03161046A (en) * | 1989-11-20 | 1991-07-11 | Terumo Corp | Polymer blend hydrogel with high water content and its preparation |
JP3055963B2 (en) * | 1991-04-18 | 2000-06-26 | 株式会社クラレ | Polymer gel for biocatalyst-immobilized moldings |
JP3165734B2 (en) * | 1992-05-19 | 2001-05-14 | テルモ株式会社 | New high water absorption shape memory material |
DE4327923C2 (en) * | 1993-08-19 | 1997-01-09 | Arbo Medizin Technologie Gmbh | Polyvinyl alcohol gel and process for its preparation |
-
1998
- 1998-06-20 DE DE19827552A patent/DE19827552C1/en not_active Expired - Lifetime
-
1999
- 1999-03-30 EP EP99922082A patent/EP1091996B1/en not_active Expired - Lifetime
- 1999-03-30 DE DE59911335T patent/DE59911335D1/en not_active Expired - Lifetime
- 1999-03-30 SK SK1942-2000A patent/SK284467B6/en not_active IP Right Cessation
- 1999-03-30 JP JP2000555967A patent/JP2002518570A/en active Pending
- 1999-03-30 AU AU39261/99A patent/AU746982B2/en not_active Ceased
- 1999-03-30 KR KR1020007014493A patent/KR20010053046A/en not_active Application Discontinuation
- 1999-03-30 PL PL344595A patent/PL194759B1/en unknown
- 1999-03-30 ES ES99922082T patent/ES2230856T3/en not_active Expired - Lifetime
- 1999-03-30 WO PCT/DE1999/000975 patent/WO1999067320A1/en not_active Application Discontinuation
- 1999-03-30 AT AT99922082T patent/ATE285433T1/en active
- 1999-03-30 DK DK99922082T patent/DK1091996T3/en active
- 1999-03-30 BR BR9911393-7A patent/BR9911393A/en not_active Application Discontinuation
- 1999-03-30 IL IL14033799A patent/IL140337A/en not_active IP Right Cessation
- 1999-03-30 CA CA002334661A patent/CA2334661A1/en not_active Abandoned
- 1999-03-30 HU HU0102098A patent/HU227366B1/en not_active IP Right Cessation
- 1999-03-30 CZ CZ20004603A patent/CZ294179B6/en not_active IP Right Cessation
-
2000
- 2000-12-08 MX MXPA/A/2000/012227 patent/MX229185B/en active IP Right Grant
-
2001
- 2001-01-09 BG BG105133A patent/BG64957B1/en unknown
- 2001-04-23 HK HK01102872A patent/HK1032410A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2002518570A (en) | 2002-06-25 |
CA2334661A1 (en) | 1999-12-29 |
DE59911335D1 (en) | 2005-01-27 |
EP1091996B1 (en) | 2004-12-22 |
PL194759B1 (en) | 2007-07-31 |
EP1091996A1 (en) | 2001-04-18 |
BG64957B1 (en) | 2006-10-31 |
AU746982B2 (en) | 2002-05-09 |
HUP0102098A3 (en) | 2002-06-28 |
KR20010053046A (en) | 2001-06-25 |
HUP0102098A2 (en) | 2001-10-28 |
SK284467B6 (en) | 2005-04-01 |
ATE285433T1 (en) | 2005-01-15 |
CZ20004603A3 (en) | 2001-10-17 |
HK1032410A1 (en) | 2001-07-20 |
DK1091996T3 (en) | 2005-01-24 |
BR9911393A (en) | 2001-03-20 |
WO1999067320A1 (en) | 1999-12-29 |
PL344595A1 (en) | 2001-11-05 |
SK19422000A3 (en) | 2001-07-10 |
IL140337A0 (en) | 2002-02-10 |
AU3926199A (en) | 2000-01-10 |
MX229185B (en) | 2005-07-15 |
BG105133A (en) | 2001-09-28 |
HU227366B1 (en) | 2011-04-28 |
CZ294179B6 (en) | 2004-10-13 |
ES2230856T3 (en) | 2005-05-01 |
DE19827552C1 (en) | 2000-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Patent granted | ||
MM9K | Patent not in force due to non-payment of renewal fees |