GB1494641A - Cross-linked hydrogel copolymer - Google Patents

Cross-linked hydrogel copolymer

Info

Publication number
GB1494641A
GB1494641A GB29757/74A GB2975774A GB1494641A GB 1494641 A GB1494641 A GB 1494641A GB 29757/74 A GB29757/74 A GB 29757/74A GB 2975774 A GB2975774 A GB 2975774A GB 1494641 A GB1494641 A GB 1494641A
Authority
GB
United Kingdom
Prior art keywords
substituted
allyloxy
cross
ethoxy
ethyl methacrylate
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
GB29757/74A
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.)
Smith and Nephew Research Ltd
Original Assignee
Smith and Nephew Research 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 Smith and Nephew Research Ltd filed Critical Smith and Nephew Research Ltd
Priority to GB29757/74A priority Critical patent/GB1494641A/en
Priority to AR259492A priority patent/AR207867A1/en
Priority to ZA00754036A priority patent/ZA754036B/en
Priority to US05/590,037 priority patent/US4036814A/en
Priority to NO752351A priority patent/NO144888C/en
Priority to AT503675A priority patent/AT349789B/en
Priority to IL47636A priority patent/IL47636A/en
Priority to AU82722/75A priority patent/AU488926B2/en
Priority to IT68728/75A priority patent/IT1036430B/en
Priority to CH868875A priority patent/CH603708A5/xx
Priority to DK300675A priority patent/DK300675A/en
Priority to FR7520881A priority patent/FR2277110A1/en
Priority to DE2529639A priority patent/DE2529639C2/en
Priority to CS754749A priority patent/CS194231B2/en
Priority to NL7507914A priority patent/NL7507914A/en
Priority to JP50082013A priority patent/JPS5845689B2/en
Priority to SE7507693A priority patent/SE407416B/en
Priority to DD187112A priority patent/DD123396A5/xx
Priority to FI751961A priority patent/FI59114C/en
Priority to BE158027A priority patent/BE831047A/en
Priority to BR5429/75D priority patent/BR7504239A/en
Priority to CA230,799A priority patent/CA1037196A/en
Priority to IE1497/75A priority patent/IE41576B1/en
Publication of GB1494641A publication Critical patent/GB1494641A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dermatology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1494641 Cross-linked hydrogel copolymer SMITH & NEPHEW RESEARCH Ltd 4 July 1975 [4 July 1974 28 April 1975] 29757/74 and 17586/75 Heading C3P A lightly cross-linked hydrogel copolymeric material capable of an uptake of physiological saline of 65-85% by weight based on the total weight of the gel is formed from (1) at least one water soluble n-vinyl lactam and (2) as a comonomer, not more than 15 mole per cent, based on the total moles of (1) and (2) of (1) and (2), of at least one compound of the formula wherein X is NH or O; R<SP>1</SP> is H or alkyl-(C 1-4 ); and R<SP>2</SP> is either (a) a substituted or unsubstituted aryl group or (b) an alkyl group (C 1-6 ), substituted by at least one substituted or unsubstituted aryl group and/or at least one substituted or unsubstituted aryloxy group or (c) a hydroxyalkyl group (C 1-6 ) further substituted. The specific examples describe the preparation of copolymers of (1) vinyl pyrrolidone and as (2) one of the benzyl, phenoxyethyl, phenethyl, methoxybenzyl, naphthyl, 4-phenylphenyl, 4-benzyl-phenyl, 4-t-butyl phenyl esters of methacrylic acid. Specific cross-linking agents used in the examples are allyl methacrylate, 3-allyloxy-2-hydroxy-propyl methacrylate, 2-allyloxy ethyl methacrylate, 2-(2- allyloxy ethoxy)-ethyl methacrylate and 2-(2- allyloxy-ethoxy ethoxy)-ethyl methacrylate.
GB29757/74A 1974-07-04 1974-07-04 Cross-linked hydrogel copolymer Expired GB1494641A (en)

Priority Applications (23)

Application Number Priority Date Filing Date Title
GB29757/74A GB1494641A (en) 1974-07-04 1974-07-04 Cross-linked hydrogel copolymer
AR259492A AR207867A1 (en) 1974-07-04 1975-01-01 A LIGHTLY INTERLACED HYDROGEL COPOLYMER
ZA00754036A ZA754036B (en) 1974-07-04 1975-06-24 Cross-linked copolymer
US05/590,037 US4036814A (en) 1974-07-04 1975-06-25 Lightly cross-linked hydrogel formed from N-vinyl lactam and hydrophobic acrylic ester comonomer
NO752351A NO144888C (en) 1974-07-04 1975-06-30 EASY HYDROGEN HYDROGLE POLYMER MATERIAL AND PROCEDURE FOR THE SAME PRODUCTION
AT503675A AT349789B (en) 1974-07-04 1975-07-01 CONTACT LENSES OR MEDICAL PROSTHESES IN CONTACT WITH BODY FLUID
IL47636A IL47636A (en) 1974-07-04 1975-07-03 Cross-linked hydrogel copolymer and contact lenses composed thereof
AU82722/75A AU488926B2 (en) 1975-07-03 Crosslinked copolymer
IT68728/75A IT1036430B (en) 1974-07-04 1975-07-03 CROSS-LINKED HYDROGEL COPOLYMER AND PROCEDURE FOR ITS PREPA RATION
CH868875A CH603708A5 (en) 1974-07-04 1975-07-03
DK300675A DK300675A (en) 1974-07-04 1975-07-03 CROSS-BOND COPOLYMER
FR7520881A FR2277110A1 (en) 1974-07-04 1975-07-03 CROSS-LINKED COPOLYMER
DE2529639A DE2529639C2 (en) 1974-07-04 1975-07-03 Crosslinked N-vinyl lactam copolymers and processes for their preparation
CS754749A CS194231B2 (en) 1974-07-04 1975-07-03 Sanitary aids particularly the contact lenses
NL7507914A NL7507914A (en) 1974-07-04 1975-07-03 LINKS COPOLYMER AND PROCEDURE FOR PREPARING SUCH COPOLYMER, AS WELL AS CONTACT LENSES MANUFACTURED FROM THIS.
JP50082013A JPS5845689B2 (en) 1974-07-04 1975-07-04 Contact lens usage
SE7507693A SE407416B (en) 1974-07-04 1975-07-04 WEAKLY CROSS-BONDED HYDROGEL COPIES CONCERNING AN N-VINYLLACTAM TOGETHER WITH A HYDROPHOB ACRYLIC MONOMER AND THEIR PREPARATION
DD187112A DD123396A5 (en) 1974-07-04 1975-07-04
FI751961A FI59114C (en) 1974-07-04 1975-07-04 FOER MEDICINSKA AENDAMAOL ANVAENDBAR SVAGT TVAERBUNDEN HYDROGELSAMPOLYMER OCH FOERFARANDE FOER DESS FRAMSTAELLNING
BE158027A BE831047A (en) 1974-07-04 1975-07-04 CROSS-LINKED COPOLYMER
BR5429/75D BR7504239A (en) 1974-07-04 1975-07-04 SLIGHTLY RETICULATED HYDROGEL COPOLIMER, PROCESS FOR YOUR PREPARATION AND CONTACT LENS
CA230,799A CA1037196A (en) 1974-07-04 1975-07-04 Cross-linked copolymer
IE1497/75A IE41576B1 (en) 1974-07-04 1975-07-04 Cross-linked copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29757/74A GB1494641A (en) 1974-07-04 1974-07-04 Cross-linked hydrogel copolymer

Publications (1)

Publication Number Publication Date
GB1494641A true GB1494641A (en) 1977-12-07

Family

ID=10296690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29757/74A Expired GB1494641A (en) 1974-07-04 1974-07-04 Cross-linked hydrogel copolymer

Country Status (3)

Country Link
BE (1) BE831047A (en)
GB (1) GB1494641A (en)
ZA (1) ZA754036B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003021337A1 (en) * 2000-03-03 2003-03-13 Johnson & Johnson Vision Care, Inc. Ocular lens
US7329694B2 (en) 2000-03-03 2008-02-12 Johnson & Johnson Vision Care, Inc. Ocular lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003021337A1 (en) * 2000-03-03 2003-03-13 Johnson & Johnson Vision Care, Inc. Ocular lens
US7329694B2 (en) 2000-03-03 2008-02-12 Johnson & Johnson Vision Care, Inc. Ocular lens
AU2001280213B2 (en) * 2001-08-28 2007-04-26 Johnson & Johnson Vision Care Inc. Ocular lens

Also Published As

Publication number Publication date
BE831047A (en) 1976-01-05
ZA754036B (en) 1976-05-26

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Legal Events

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