JPS57130543A - Preparation of gel - Google Patents

Preparation of gel

Info

Publication number
JPS57130543A
JPS57130543A JP56015010A JP1501081A JPS57130543A JP S57130543 A JPS57130543 A JP S57130543A JP 56015010 A JP56015010 A JP 56015010A JP 1501081 A JP1501081 A JP 1501081A JP S57130543 A JPS57130543 A JP S57130543A
Authority
JP
Japan
Prior art keywords
gel
water content
frozen
elasticity
molding
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
Application number
JP56015010A
Other languages
Japanese (ja)
Other versions
JPH0310371B2 (en
Inventor
Masao Nanbu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Oil Corp
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 Nippon Oil Corp filed Critical Nippon Oil Corp
Priority to JP56015010A priority Critical patent/JPS57130543A/en
Priority to DE8282300573T priority patent/DE3265697D1/en
Priority to EP82300573A priority patent/EP0058497B1/en
Priority to CA000395569A priority patent/CA1181915A/en
Publication of JPS57130543A publication Critical patent/JPS57130543A/en
Priority to US06/749,127 priority patent/US4664857A/en
Publication of JPH0310371B2 publication Critical patent/JPH0310371B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Feed For Specific Animals (AREA)
  • Fodder In General (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Colloid Chemistry (AREA)

Abstract

PURPOSE: To obtain a high water content porous gel having rubber like elasticity and excellent mechanical strength by a method wherein an aqueous solution of a specified polyorvnyl alcohol is frozen and, after molding, dried under vacuum.
CONSTITUTION: An aqueous solution of polyvinyl alcohol of which the saponification value is 95% or more and the viscosity average polymerization degree is 1,500 or more is poured in a container with an optional shape or a casting mold and frozen at -6°C or less to be molded. After molding, when the molded object is dried under vacuum without melting the same, the high water content gel containing 20W90wt% water is obtained. Thus obtained gel is porous and high in water content and has rubber like elasticity and excellent mechanical strength as well as is inexpensive.
COPYRIGHT: (C)1982,JPO&Japio
JP56015010A 1981-02-05 1981-02-05 Preparation of gel Granted JPS57130543A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56015010A JPS57130543A (en) 1981-02-05 1981-02-05 Preparation of gel
DE8282300573T DE3265697D1 (en) 1981-02-05 1982-02-04 Process for preparing a hydrogel
EP82300573A EP0058497B1 (en) 1981-02-05 1982-02-04 Process for preparing a hydrogel
CA000395569A CA1181915A (en) 1981-02-05 1982-02-04 Process for preparing a hydrogel
US06/749,127 US4664857A (en) 1981-02-05 1985-06-27 Process for preparing a hydrogel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015010A JPS57130543A (en) 1981-02-05 1981-02-05 Preparation of gel

Publications (2)

Publication Number Publication Date
JPS57130543A true JPS57130543A (en) 1982-08-13
JPH0310371B2 JPH0310371B2 (en) 1991-02-13

Family

ID=11876905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015010A Granted JPS57130543A (en) 1981-02-05 1981-02-05 Preparation of gel

Country Status (1)

Country Link
JP (1) JPS57130543A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7412304B2 (en) 2004-03-25 2008-08-12 Ip Power Systems Corporation Power system for area containing a set of power consumers
JP2009512713A (en) * 2005-10-21 2009-03-26 エイディーエイ ファウンデーション Dental and endodontic filling materials and methods
JP2012503036A (en) * 2008-09-15 2012-02-02 マリア・ストローム Vinyl alcohol copolymer cryogel, vinyl alcohol copolymer and methods and products thereof
JP2019097659A (en) * 2017-11-29 2019-06-24 地方独立行政法人東京都立産業技術研究センター Tubular hydrogel and medical stent

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7412304B2 (en) 2004-03-25 2008-08-12 Ip Power Systems Corporation Power system for area containing a set of power consumers
JP2009512713A (en) * 2005-10-21 2009-03-26 エイディーエイ ファウンデーション Dental and endodontic filling materials and methods
JP2013151527A (en) * 2005-10-21 2013-08-08 Ada Foundation Dental and endodontic filling material and method
JP2012503036A (en) * 2008-09-15 2012-02-02 マリア・ストローム Vinyl alcohol copolymer cryogel, vinyl alcohol copolymer and methods and products thereof
US8975309B2 (en) 2008-09-15 2015-03-10 Maria Stromme Vinyl alcohol co-polymer cryogels, vinyl alcohol co-polymers, and methods and products thereof
JP2019097659A (en) * 2017-11-29 2019-06-24 地方独立行政法人東京都立産業技術研究センター Tubular hydrogel and medical stent

Also Published As

Publication number Publication date
JPH0310371B2 (en) 1991-02-13

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