IL140337A0 - Process for preparing a polyvinyl alcohol gel - Google Patents

Process for preparing a polyvinyl alcohol gel

Info

Publication number
IL140337A0
IL140337A0 IL14033799A IL14033799A IL140337A0 IL 140337 A0 IL140337 A0 IL 140337A0 IL 14033799 A IL14033799 A IL 14033799A IL 14033799 A IL14033799 A IL 14033799A IL 140337 A0 IL140337 A0 IL 140337A0
Authority
IL
Israel
Prior art keywords
polyvinyl alcohol
aqueous
solution
preparing
gel
Prior art date
Application number
IL14033799A
Other versions
IL140337A (en
Original Assignee
Vorlop Klaus Dieter
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vorlop Klaus Dieter filed Critical Vorlop Klaus Dieter
Publication of IL140337A0 publication Critical patent/IL140337A0/en
Publication of IL140337A publication Critical patent/IL140337A/en

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.
IL14033799A 1998-06-20 1999-03-30 Process for preparing a polyvinyl alcohol gel containing a biologically active material IL140337A (en)

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 true IL140337A0 (en) 2002-02-10
IL140337A 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2555226A1 (en) * 2004-02-04 2005-09-01 Cambridge Polymer Group, Inc. Systems and methods for controlling and forming polymer gels
MX2008011626A (en) * 2006-03-13 2008-12-16 Lentikat S A S A method for industrial production of biocatalysts in the form of enzymes or microorganisms immobilized in polyvinyl alcohol gel, their use and devices for their production.
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
EP3535377B1 (en) 2016-11-01 2022-02-09 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
WO2022060015A1 (en) * 2020-09-15 2022-03-24 주식회사 엘지화학 Micro-carrier for cell culture, and preparation method therefor
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES2230856T3 (en) 2005-05-01
DE59911335D1 (en) 2005-01-27
JP2002518570A (en) 2002-06-25
SK19422000A3 (en) 2001-07-10
AU746982B2 (en) 2002-05-09
MX229185B (en) 2005-07-15
WO1999067320A1 (en) 1999-12-29
IL140337A (en) 2005-08-31
EP1091996B1 (en) 2004-12-22
EP1091996A1 (en) 2001-04-18
KR20010053046A (en) 2001-06-25
DE19827552C1 (en) 2000-03-02
BG105133A (en) 2001-09-28
SK284467B6 (en) 2005-04-01
HU227366B1 (en) 2011-04-28
CZ20004603A3 (en) 2001-10-17
DK1091996T3 (en) 2005-01-24
PL344595A1 (en) 2001-11-05
HK1032410A1 (en) 2001-07-20
BG64957B1 (en) 2006-10-31
BR9911393A (en) 2001-03-20
CZ294179B6 (en) 2004-10-13
CA2334661A1 (en) 1999-12-29
AU3926199A (en) 2000-01-10
PL194759B1 (en) 2007-07-31
HUP0102098A2 (en) 2001-10-28
HUP0102098A3 (en) 2002-06-28
ATE285433T1 (en) 2005-01-15

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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