IL106660A - Hydrogel composition comprising polyvinyl alcohol polymer and its production - Google Patents

Hydrogel composition comprising polyvinyl alcohol polymer and its production

Info

Publication number
IL106660A
IL106660A IL106660A IL10666093A IL106660A IL 106660 A IL106660 A IL 106660A IL 106660 A IL106660 A IL 106660A IL 10666093 A IL10666093 A IL 10666093A IL 106660 A IL106660 A IL 106660A
Authority
IL
Israel
Prior art keywords
polyvinyl alcohol
alcohol polymer
hydrogel composition
production
polymer
Prior art date
Application number
IL106660A
Other languages
English (en)
Original Assignee
Adcock Ingram Ltd
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 Adcock Ingram Ltd filed Critical Adcock Ingram Ltd
Publication of IL106660A publication Critical patent/IL106660A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/24Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/246Intercrosslinking of at least two polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00Compositions 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
    • C08L29/02Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/14Esterification
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00Characterised by the use of unspecified polymers
    • C08J2300/14Water soluble or water swellable polymers, e.g. aqueous gels
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L35/00Compositions 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 a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L35/08Copolymers with vinyl ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Preparation (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Colloid Chemistry (AREA)
IL106660A 1992-08-13 1993-08-11 Hydrogel composition comprising polyvinyl alcohol polymer and its production IL106660A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA926098 1992-08-13
ZA934104 1993-06-10

Publications (1)

Publication Number Publication Date
IL106660A true IL106660A (en) 1997-04-15

Family

ID=66817646

Family Applications (1)

Application Number Title Priority Date Filing Date
IL106660A IL106660A (en) 1992-08-13 1993-08-11 Hydrogel composition comprising polyvinyl alcohol polymer and its production

Country Status (10)

Country Link
US (1) US5972375A (fr)
EP (1) EP0583170B1 (fr)
JP (1) JPH06212045A (fr)
KR (1) KR940004002A (fr)
AT (1) ATE155493T1 (fr)
AU (1) AU664913B2 (fr)
CA (1) CA2103846A1 (fr)
DE (1) DE69312181T2 (fr)
IL (1) IL106660A (fr)
ZW (1) ZW9693A1 (fr)

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA939117B (en) * 1992-12-04 1994-08-05 Susanna Elizabeth Chalmers Pharmaceutical product
EP0716098B1 (fr) * 1994-12-08 1999-03-17 Kuraray Co., Ltd. Pansement
JPH08311290A (ja) * 1995-05-23 1996-11-26 Showa Denko Kk 吸液材料用組成物、吸液材料成形体およびその製造方法
US6221399B1 (en) * 1995-08-17 2001-04-24 Csir Method of making controlled release particles of complexed polymers
US5880216A (en) * 1995-12-22 1999-03-09 Kuraray Co., Ltd. Polyvinyl alcohol and gel containing the same
JP3612138B2 (ja) * 1996-03-29 2005-01-19 日本原子力研究所 Pvaハイドロゲル積層体およびその製造方法
US5661221A (en) * 1996-12-18 1997-08-26 Colgate-Palmolive Company Process for the preparation of cross-linked maleic anhydride copolymers
US6703047B2 (en) * 2001-02-02 2004-03-09 Incept Llc Dehydrated hydrogel precursor-based, tissue adherent compositions and methods of use
US7335220B2 (en) * 2004-11-05 2008-02-26 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US6555619B1 (en) 2000-06-29 2003-04-29 The University Of Akron Physically crosslinked amphiphilic networks, methods of preparation, and uses thereof
KR100433363B1 (ko) * 2002-04-15 2004-05-28 주식회사 동구제약 아시클로버함유 외용필름형성 하이드로겔 제제
US20060111517A1 (en) * 2002-08-08 2006-05-25 Hans-Dieter Feucht Recognition layers made of hydrogel based on polyacrylamide for use in biosensor technology
CA2521118C (fr) * 2003-04-11 2007-01-16 Csir Emballage a couche barriere soluble dans l'eau
US9289195B2 (en) 2003-06-04 2016-03-22 Access Closure, Inc. Auto-retraction apparatus and methods for sealing a vascular puncture
US7331979B2 (en) * 2003-06-04 2008-02-19 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US8012402B2 (en) 2008-08-04 2011-09-06 Abbott Cardiovascular Systems Inc. Tube expansion process for semicrystalline polymers to maximize fracture toughness
US7971333B2 (en) 2006-05-30 2011-07-05 Advanced Cardiovascular Systems, Inc. Manufacturing process for polymetric stents
US20060020330A1 (en) 2004-07-26 2006-01-26 Bin Huang Method of fabricating an implantable medical device with biaxially oriented polymers
US20140107761A1 (en) 2004-07-26 2014-04-17 Abbott Cardiovascular Systems Inc. Biodegradable stent with enhanced fracture toughness
US8778256B1 (en) 2004-09-30 2014-07-15 Advanced Cardiovascular Systems, Inc. Deformation of a polymer tube in the fabrication of a medical article
US8747879B2 (en) 2006-04-28 2014-06-10 Advanced Cardiovascular Systems, Inc. Method of fabricating an implantable medical device to reduce chance of late inflammatory response
US8268228B2 (en) 2007-12-11 2012-09-18 Abbott Cardiovascular Systems Inc. Method of fabricating stents from blow molded tubing
US7731890B2 (en) 2006-06-15 2010-06-08 Advanced Cardiovascular Systems, Inc. Methods of fabricating stents with enhanced fracture toughness
US8501079B2 (en) 2009-09-14 2013-08-06 Abbott Cardiovascular Systems Inc. Controlling crystalline morphology of a bioabsorbable stent
US8348971B2 (en) 2004-08-27 2013-01-08 Accessclosure, Inc. Apparatus and methods for facilitating hemostasis within a vascular puncture
US8173062B1 (en) 2004-09-30 2012-05-08 Advanced Cardiovascular Systems, Inc. Controlled deformation of a polymer tube in fabricating a medical article
US8043553B1 (en) 2004-09-30 2011-10-25 Advanced Cardiovascular Systems, Inc. Controlled deformation of a polymer tube with a restraining surface in fabricating a medical article
US7875233B2 (en) 2004-09-30 2011-01-25 Advanced Cardiovascular Systems, Inc. Method of fabricating a biaxially oriented implantable medical device
US8262693B2 (en) * 2004-11-05 2012-09-11 Accessclosure, Inc. Apparatus and methods for sealing a vascular puncture
JP4786196B2 (ja) * 2005-02-24 2011-10-05 ライオン株式会社 ゲル組成物及びその製造方法
US7806856B2 (en) * 2005-04-22 2010-10-05 Accessclosure, Inc. Apparatus and method for temporary hemostasis
US7276257B2 (en) * 2005-07-22 2007-10-02 The Hong Kong University Of Science And Technology Schisandrin B preparation
US7297758B2 (en) * 2005-08-02 2007-11-20 Advanced Cardiovascular Systems, Inc. Method for extending shelf-life of constructs of semi-crystallizable polymers
US20070036846A1 (en) * 2005-08-15 2007-02-15 Tsang Wing W M Wound dressing and method of manufacture thereof
US20070156230A1 (en) 2006-01-04 2007-07-05 Dugan Stephen R Stents with radiopaque markers
US7648085B2 (en) 2006-02-22 2010-01-19 Rain Bird Corporation Drip emitter
US8795709B2 (en) * 2006-03-29 2014-08-05 Incept Llc Superabsorbent, freeze dried hydrogels for medical applications
US20130325107A1 (en) 2006-05-26 2013-12-05 Abbott Cardiovascular Systems Inc. Stents With Radiopaque Markers
JP2007320886A (ja) * 2006-05-31 2007-12-13 Isp Japan Kk 含水ゲル状シート剤及びその製造方法
US8535372B1 (en) 2006-06-16 2013-09-17 Abbott Cardiovascular Systems Inc. Bioabsorbable stent with prohealing layer
US8128688B2 (en) 2006-06-27 2012-03-06 Abbott Cardiovascular Systems Inc. Carbon coating on an implantable device
US7740791B2 (en) 2006-06-30 2010-06-22 Advanced Cardiovascular Systems, Inc. Method of fabricating a stent with features by blow molding
US7823263B2 (en) 2006-07-11 2010-11-02 Abbott Cardiovascular Systems Inc. Method of removing stent islands from a stent
US8617204B2 (en) 2006-09-13 2013-12-31 Accessclosure, Inc. Apparatus and methods for sealing a vascular puncture
US7901452B2 (en) 2007-06-27 2011-03-08 Abbott Cardiovascular Systems Inc. Method to fabricate a stent having selected morphology to reduce restenosis
US7955381B1 (en) 2007-06-29 2011-06-07 Advanced Cardiovascular Systems, Inc. Polymer-bioceramic composite implantable medical device with different types of bioceramic particles
US7666342B2 (en) 2007-06-29 2010-02-23 Abbott Cardiovascular Systems Inc. Method of manufacturing a stent from a polymer tube
US8207253B2 (en) * 2007-09-14 2012-06-26 Eastman Specialties Holdings Corporation Mixed aryl/alkyl diester compositions
US7993367B2 (en) * 2007-09-28 2011-08-09 Accessclosure, Inc. Apparatus and methods for sealing a vascular puncture
JP2011502582A (ja) 2007-11-02 2011-01-27 インセプト,エルエルシー 血管穿刺を塞ぐ装置および方法
US9364206B2 (en) 2008-04-04 2016-06-14 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US8029533B2 (en) * 2008-04-04 2011-10-04 Accessclosure, Inc. Apparatus and methods for sealing a vascular puncture
EP3001954B1 (fr) * 2008-11-12 2018-01-10 Access Closure, Inc. Appareil de fermeture d'une perforation vasculaire
CN102395401B (zh) 2009-02-12 2015-08-19 因赛普特有限责任公司 经由水凝胶塞的药物递送
CA2977830C (fr) 2009-05-04 2019-09-17 Incept, Llc Biomateriaux pour la fermeture de voie et de ponction
JP5864429B2 (ja) 2009-11-09 2016-02-17 スポットライト テクノロジー パートナーズ エルエルシーSpotlight Technology Partners Llc 架橋ヒドロゲル組成物、ヒドロゲル組成物の形成方法、及びキット
EP2498764B1 (fr) 2009-11-09 2017-09-06 Spotlight Technology Partners LLC Hydrogels fragmentés
US8568471B2 (en) 2010-01-30 2013-10-29 Abbott Cardiovascular Systems Inc. Crush recoverable polymer scaffolds
US8808353B2 (en) 2010-01-30 2014-08-19 Abbott Cardiovascular Systems Inc. Crush recoverable polymer scaffolds having a low crossing profile
CN101870791B (zh) * 2010-02-26 2012-02-29 中国科学院长春应用化学研究所 一种吸湿薄膜的制备方法
DE102010013075A1 (de) * 2010-03-26 2011-09-29 B. Braun Melsungen Ag Antimikrobielle Wundauflage
US8370120B2 (en) 2010-04-30 2013-02-05 Abbott Cardiovascular Systems Inc. Polymeric stents and method of manufacturing same
US9820728B2 (en) 2011-01-19 2017-11-21 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US10182800B2 (en) 2011-01-19 2019-01-22 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
BE1019837A3 (nl) * 2011-02-22 2013-01-08 Non Newtonian Additives Verbeterde samenstellingen met vernette wateroplosbare polymeren.
RU2469541C2 (ru) * 2011-03-30 2012-12-20 Общество С Ограниченной Ответственностью "Производственно-Коммерческая Фирма "Атлантис-Пак" Модифицированный поливиниловый спирт и содержащая его паро- и дымопроницаемая синтетическая оболочка для пищевых продуктов
US9386968B2 (en) 2011-05-11 2016-07-12 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US8726483B2 (en) 2011-07-29 2014-05-20 Abbott Cardiovascular Systems Inc. Methods for uniform crimping and deployment of a polymer scaffold
US10226417B2 (en) 2011-09-16 2019-03-12 Peter Jarrett Drug delivery systems and applications
EP3613413A1 (fr) 2011-12-05 2020-02-26 Incept, LLC Procédés d'organogel médical et compositions
US9757105B2 (en) 2012-03-23 2017-09-12 Accessclosure, Inc. Apparatus and methods for sealing a vascular puncture
US8721680B2 (en) 2012-03-23 2014-05-13 Accessclosure, Inc. Apparatus and methods for sealing a vascular puncture
US10440903B2 (en) 2012-03-26 2019-10-15 Rain Bird Corporation Drip line emitter and methods relating to same
US9485923B2 (en) 2012-03-26 2016-11-08 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9877440B2 (en) 2012-03-26 2018-01-30 Rain Bird Corporation Elastomeric emitter and methods relating to same
US20130248622A1 (en) 2012-03-26 2013-09-26 Jae Yung Kim Drip line and emitter and methods relating to same
US9179997B2 (en) 2013-03-06 2015-11-10 St. Jude Medical, Cardiology Division, Inc. Thermochromic polyvinyl alcohol based hydrogel artery
US9872444B2 (en) 2013-03-15 2018-01-23 Rain Bird Corporation Drip emitter
US10285342B2 (en) 2013-08-12 2019-05-14 Rain Bird Corporation Elastomeric emitter and methods relating to same
USD811179S1 (en) 2013-08-12 2018-02-27 Rain Bird Corporation Emitter part
US10631473B2 (en) 2013-08-12 2020-04-28 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9883640B2 (en) 2013-10-22 2018-02-06 Rain Bird Corporation Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines
CN105142688B (zh) 2014-02-04 2018-01-19 艾博特心血管系统公司 具有基于novolimus和丙交酯的涂层使得novolimus与涂层具有最小键合量的药物递送支架或支撑件
US10330559B2 (en) 2014-09-11 2019-06-25 Rain Bird Corporation Methods and apparatus for checking emitter bonds in an irrigation drip line
US9999527B2 (en) 2015-02-11 2018-06-19 Abbott Cardiovascular Systems Inc. Scaffolds having radiopaque markers
US9700443B2 (en) 2015-06-12 2017-07-11 Abbott Cardiovascular Systems Inc. Methods for attaching a radiopaque marker to a scaffold
US10375904B2 (en) 2016-07-18 2019-08-13 Rain Bird Corporation Emitter locating system and related methods
GB2572096B (en) * 2016-11-30 2021-08-18 Kimberly Clark Co Thermoplastic injection molded and flushable material
US11051466B2 (en) 2017-01-27 2021-07-06 Rain Bird Corporation Pressure compensation members, emitters, drip line and methods relating to same
US10626998B2 (en) 2017-05-15 2020-04-21 Rain Bird Corporation Drip emitter with check valve
USD883048S1 (en) 2017-12-12 2020-05-05 Rain Bird Corporation Emitter part
US11985924B2 (en) 2018-06-11 2024-05-21 Rain Bird Corporation Emitter outlet, emitter, drip line and methods relating to same
CN116390691A (zh) * 2020-08-10 2023-07-04 歌尔4梅德股份有限公司 自组装的两亲性肽水凝胶
CN115536965A (zh) * 2022-09-27 2022-12-30 中新巨成医学科技有限公司 一种生物仿真材料及其制备方法和用途

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1455756A (fr) * 1961-01-06 1966-05-20 Kurashiki Rayon Co Procédé pour éviter l'adhésivité des films hydrosolubles dérivés de l'alcool polyvinylique et films ainsi obtenus
US4104453A (en) * 1977-07-05 1978-08-01 National Distillers And Chemical Corporation Melt dispersion saponification of ethylene-vinyl acetate polymer
DE3126201A1 (de) * 1981-07-03 1983-01-20 Hoechst Ag, 6000 Frankfurt Verfahren zur herstellung einer polyvinylalkohol-komplexverbindung und danach hergestellte polyvinylalkohol-komplexverbindung
US5277915A (en) * 1987-10-30 1994-01-11 Fmc Corporation Gel-in-matrix containing a fractured hydrogel
JP2746387B2 (ja) * 1988-09-22 1998-05-06 株式会社ビーエムジー ポリビニルアルコールヒドロゲルの製造方法
US5104926A (en) * 1989-12-22 1992-04-14 Isp Investments Inc. Pressure sensitive adhesive compositions and elements made therefrom
US5260066A (en) * 1992-01-16 1993-11-09 Srchem Incorporated Cryogel bandage containing therapeutic agent
DE4244548C2 (de) * 1992-12-30 1997-10-02 Stockhausen Chem Fab Gmbh Pulverförmige, unter Belastung wäßrige Flüssigkeiten sowie Blut absorbierende Polymere, Verfahren zu ihrer Herstellung und ihre Verwendung in textilen Konstruktionen für die Körperhygiene
EP0716098B1 (fr) * 1994-12-08 1999-03-17 Kuraray Co., Ltd. Pansement

Also Published As

Publication number Publication date
DE69312181T2 (de) 1997-12-11
AU664913B2 (en) 1995-12-07
EP0583170A1 (fr) 1994-02-16
US5972375A (en) 1999-10-26
AU4459993A (en) 1994-02-24
KR940004002A (ko) 1994-03-14
ATE155493T1 (de) 1997-08-15
EP0583170B1 (fr) 1997-07-16
JPH06212045A (ja) 1994-08-02
CA2103846A1 (fr) 1994-02-14
ZW9693A1 (en) 1993-12-01
DE69312181D1 (de) 1997-08-21

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