GB1405056A - Process for producing transparent gels with mechanical and sorption properties - Google Patents

Process for producing transparent gels with mechanical and sorption properties

Info

Publication number
GB1405056A
GB1405056A GB2393473A GB2393473A GB1405056A GB 1405056 A GB1405056 A GB 1405056A GB 2393473 A GB2393473 A GB 2393473A GB 2393473 A GB2393473 A GB 2393473A GB 1405056 A GB1405056 A GB 1405056A
Authority
GB
United Kingdom
Prior art keywords
water
methacrylamide
hydroxyethyl methacrylate
methacrylate
gel
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.)
Expired
Application number
GB2393473A
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.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
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 Czech Academy of Sciences CAS filed Critical Czech Academy of Sciences CAS
Publication of GB1405056A publication Critical patent/GB1405056A/en
Expired legal-status Critical Current

Links

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
    • C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/56—Acrylamide; Methacrylamide
    • 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
    • C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1405056 Modifying hydrophilic gels CESKOSLOVENSKA AKADEMIE VED 18 May 1973 [22 May 1972] 23934/73 Heading C3P A transparent hydrophilic gel with improved mechanical and sorption properties made from a copolymer of 2-hydroxyethyl methacrylate with acrylamide or methacrylamide is prepared by copolymerizing 2-hydroxyethyl methacrylate with 20 to 90 weight per cent of methacrylamide or 20 to 80 weight per cent of acrylamide- (based on the combined weight of the 2-hydro xyethyl methacrylate and the amide monomer) in the presence of a crosslinking agent and a diluent and further modifying the gel so obtained by heating in water or an aqueous medium having a pH below 8. In the examples 2- hydroxyethyl methacrylate, methacrylamide, methylene bisacrylamide, 2-(2-hydroxyethoxy) ethyl methacrylate, diethylene glycol dimethacrylate and butyl acrylate are copolymerized in the presence of water, diisopropyl peroxocarbonate and ethylene glycol in a flat mould. The resulting clear gel membranes are heated in water. Instead of water aqueous solutions of acids, e.g. formic, acetic or sulphuric acid, buffer solutions and solutions of some inorganic salts, e.g. sodium chloride may be used as the medium.
GB2393473A 1972-05-22 1973-05-18 Process for producing transparent gels with mechanical and sorption properties Expired GB1405056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS3474A CS163469B1 (en) 1972-05-22 1972-05-22

Publications (1)

Publication Number Publication Date
GB1405056A true GB1405056A (en) 1975-09-03

Family

ID=5374912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2393473A Expired GB1405056A (en) 1972-05-22 1973-05-18 Process for producing transparent gels with mechanical and sorption properties

Country Status (3)

Country Link
JP (1) JPS5756484B2 (en)
CS (1) CS163469B1 (en)
GB (1) GB1405056A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188051A (en) * 1986-03-06 1987-09-23 Ceskoslovenska Akademie Ved Crosslinked gels based on glycol esters of methacrylic acid with enhanced swelling capacity in water and a method for producing them
CN115039787A (en) * 2022-07-22 2022-09-13 赤天化科技集团有限公司 Preparation method and application of pesticide-fertilizer granules containing chlorantraniliprole and thiamethoxam

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7351430B2 (en) * 2002-11-06 2008-04-01 Uluru Inc. Shape-retentive hydrogel particle aggregates and their uses
US7811605B2 (en) 2002-11-06 2010-10-12 Uluru Inc. Method of formation of shape-retentive aggregates of gel particles and their uses
US7910135B2 (en) 2006-10-13 2011-03-22 Uluru Inc. Hydrogel wound dressing and biomaterials formed in situ and their uses

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1169574A (en) * 1957-04-24 1958-12-31 Hydrophilic shaped bodies such as ophthalmic contact lenses auxiliary to surgery and the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188051A (en) * 1986-03-06 1987-09-23 Ceskoslovenska Akademie Ved Crosslinked gels based on glycol esters of methacrylic acid with enhanced swelling capacity in water and a method for producing them
GB2188051B (en) * 1986-03-06 1990-08-01 Ceskoslovenska Akademie Ved Crosslinked gels based on glycol esters of methacrylic acid with the enhanced swelling capacity in water and a method for producing thereof
CN115039787A (en) * 2022-07-22 2022-09-13 赤天化科技集团有限公司 Preparation method and application of pesticide-fertilizer granules containing chlorantraniliprole and thiamethoxam

Also Published As

Publication number Publication date
JPS4950089A (en) 1974-05-15
CS163469B1 (en) 1975-09-15
JPS5756484B2 (en) 1982-11-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee