GB1436705A - N-vinyl pyrrolidone copolymers - Google Patents

N-vinyl pyrrolidone copolymers

Info

Publication number
GB1436705A
GB1436705A GB2414772A GB2414772A GB1436705A GB 1436705 A GB1436705 A GB 1436705A GB 2414772 A GB2414772 A GB 2414772A GB 2414772 A GB2414772 A GB 2414772A GB 1436705 A GB1436705 A GB 1436705A
Authority
GB
United Kingdom
Prior art keywords
copolymers
vinyl pyrrolidone
hydrophilic
curing
isoprene
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
GB2414772A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB2414772A priority Critical patent/GB1436705A/en
Publication of GB1436705A publication Critical patent/GB1436705A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G02B1/043—Contact lenses
    • 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
    • C08F226/00—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 single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F226/06—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 single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
    • C08F226/10—N-Vinyl-pyrrolidone

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

1436705 Hydrophilic N-vinyl pyrrolidone copolymers NATIONAL RESEARCH DEVELOPMENT CORP 9 May 1973 [23 May 1972] 24147/72 Heading C3P Hydrophilic copolymers capable of absorbing water to form hydrogen comprise (a) N-vinylpyrrolidone, (b) an ethylenically unsaturated hydrocarbon monomer and (c) a further ethylenically unsaturated hydrophilic monomer. Optionally alkyl or aryl (meth)acrylates and/or cross-linking agents may also be included. Component (b) may be an alphaolefin, arylolefin or isoprene, while (c) may be an alkenol or hydroxyalkyl(meth)acrylate. Diene cross-linking agents may suitably be mixed with a curing catalyst in the copolymerization system, with curing during the moulding subsequent to the copolymerization, which is typically carried out under solution conditions or in bulk between glass plates, using a freeradical initiator. The product copolymers may be used for preparing contact lenses, prosthetic implants or kidney dialysis membranes. In examples, N-vinyl pyrrolidone is copolymerized with hydroxyethyl- or hydroxypropyl methacrylate, using azobisisobutyronitrile as catalyst, in bulk or under reflux in methanol, in one case including styrene as component (c), while in the others isoprene and dicumyl peroxide are included, followed by curing in a mould and formation of a hydrogel. Reference has been directed by the Comptroller to Specification 1,395,501.
GB2414772A 1972-05-23 1972-05-23 N-vinyl pyrrolidone copolymers Expired GB1436705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2414772A GB1436705A (en) 1972-05-23 1972-05-23 N-vinyl pyrrolidone copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2414772A GB1436705A (en) 1972-05-23 1972-05-23 N-vinyl pyrrolidone copolymers

Publications (1)

Publication Number Publication Date
GB1436705A true GB1436705A (en) 1976-05-26

Family

ID=10207144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2414772A Expired GB1436705A (en) 1972-05-23 1972-05-23 N-vinyl pyrrolidone copolymers

Country Status (1)

Country Link
GB (1) GB1436705A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006323A1 (en) * 1978-06-08 1980-01-09 Schering Corporation Shaped articles which are contact lenses or bonnets for contact lens formed from polymers of styrene type monomers
USRE31422E (en) 1977-12-27 1983-10-18 Schering Corporation Hydrophilic polymers and contact lenses of high water content
US4611039A (en) * 1981-11-09 1986-09-09 Precision-Cosmet Co., Inc. Wettable, gas permeable contact lens
CN104628950A (en) * 2015-03-06 2015-05-20 北京化工大学 Bio-functional prenyl rubber and preparation method thereof
CN112480313A (en) * 2020-11-18 2021-03-12 岳刚 PHEMA hydrogel and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31422E (en) 1977-12-27 1983-10-18 Schering Corporation Hydrophilic polymers and contact lenses of high water content
EP0006323A1 (en) * 1978-06-08 1980-01-09 Schering Corporation Shaped articles which are contact lenses or bonnets for contact lens formed from polymers of styrene type monomers
US4611039A (en) * 1981-11-09 1986-09-09 Precision-Cosmet Co., Inc. Wettable, gas permeable contact lens
CN104628950A (en) * 2015-03-06 2015-05-20 北京化工大学 Bio-functional prenyl rubber and preparation method thereof
CN112480313A (en) * 2020-11-18 2021-03-12 岳刚 PHEMA hydrogel and preparation method thereof

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee