JPS57189115A - Contact lens - Google Patents

Contact lens

Info

Publication number
JPS57189115A
JPS57189115A JP56074289A JP7428981A JPS57189115A JP S57189115 A JPS57189115 A JP S57189115A JP 56074289 A JP56074289 A JP 56074289A JP 7428981 A JP7428981 A JP 7428981A JP S57189115 A JPS57189115 A JP S57189115A
Authority
JP
Japan
Prior art keywords
divinyl
contact lens
dicarboxylate
meth
acrylate
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
JP56074289A
Other languages
Japanese (ja)
Other versions
JPS6251449B2 (en
Inventor
Yutaka Mizutani
Tatsuo Harada
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.)
NIHON CONTACT LENS SEIZOU KK
NIPPON CONTACT LENS SEIZO KK
Original Assignee
NIHON CONTACT LENS SEIZOU KK
NIPPON CONTACT LENS SEIZO KK
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 NIHON CONTACT LENS SEIZOU KK, NIPPON CONTACT LENS SEIZO KK filed Critical NIHON CONTACT LENS SEIZOU KK
Priority to JP56074289A priority Critical patent/JPS57189115A/en
Publication of JPS57189115A publication Critical patent/JPS57189115A/en
Publication of JPS6251449B2 publication Critical patent/JPS6251449B2/ja
Granted 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
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • 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)
  • Eyeglasses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE:To improve the tensile strength, etc. of a lens obtd. by using divinyl dicarboxylate as a crosslinking agent for a contact lens material consisting essentially of mono(meth)acrylate of alkylene glycol. CONSTITUTION:About 0.1-1.8mol% divinyl dicarboxylate is compounded as a crosslinking agent with a main raw material consisting of about 72-98mol% mono(meth)acrylate of alkylene glycol and about 28-2mol% methacrylic acid deriv. and these are polymerized. An intended contact lens is obtained by using the resultant polymer as a blank material. The compd. expressed by the formula (R is C1-C10 hydrocarbon) is preferable and divinyl dicarboxylate, and divinyl adipate, divinyl malonate, etc. are exemplified. The resultant contact lens is highly strong and tough, and despite of its decreased thickness, sufficient strength is obtained; therefore, it is possible to improve oxygen permeability by reducing the thickness.
JP56074289A 1981-05-19 1981-05-19 Contact lens Granted JPS57189115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074289A JPS57189115A (en) 1981-05-19 1981-05-19 Contact lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074289A JPS57189115A (en) 1981-05-19 1981-05-19 Contact lens

Publications (2)

Publication Number Publication Date
JPS57189115A true JPS57189115A (en) 1982-11-20
JPS6251449B2 JPS6251449B2 (en) 1987-10-30

Family

ID=13542816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074289A Granted JPS57189115A (en) 1981-05-19 1981-05-19 Contact lens

Country Status (1)

Country Link
JP (1) JPS57189115A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543738A (en) * 1977-06-08 1979-01-12 Masaji Yamaguchi Wiper for twoowheel barrow
JPS5439741A (en) * 1977-09-05 1979-03-27 Shimazu Kinzoku Kogyo Kk Friction speed reduction hydraulic motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543738A (en) * 1977-06-08 1979-01-12 Masaji Yamaguchi Wiper for twoowheel barrow
JPS5439741A (en) * 1977-09-05 1979-03-27 Shimazu Kinzoku Kogyo Kk Friction speed reduction hydraulic motor

Also Published As

Publication number Publication date
JPS6251449B2 (en) 1987-10-30

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