Title:
MATERIAL FOR OXYGEN-PERMEABLE HARD CONTACT LENS WITH EXCELLENT IMPACT RESISTANCE
Document Type and Number:
WIPO Patent Application WO/1988/002498
Kind Code:
A1
Abstract:
Material for an oxygen-permeable hard contact lens, which is a copolymer containing as major components at least one monomer component selected from among fluorine-containing (meth)acrylates and silicone-containing (meth)acrylates and a siloxane oligomer having a polymerizable functional groups at molecular ends. This copolymer is useful as a material for preparing an oxygen-permeable hard contact lens with excellent impact resistance.
Inventors:
ONOZUKA SHIGEHARU (JP)
YOKOYAMA YUICHI (JP)
TSUCHIYA MAKOTO (JP)
YOKOYAMA YUICHI (JP)
TSUCHIYA MAKOTO (JP)
Application Number:
PCT/JP1987/000361
Publication Date:
April 07, 1988
Filing Date:
June 09, 1987
Export Citation:
Assignee:
HOYA CORP (JP)
International Classes:
C08F220/22; C08F20/22; C08F30/08; C08F230/08; C08F290/00; C08F290/06; C08F299/00; G02B1/04; G02C7/04; (IPC1-7): G02C7/04; C08F20/22; C08F299/08
Foreign References:
| JPS61281216A | 1986-12-11 | |||
| JPH06185442A | 1994-07-05 | |||
| JPS5977411A | 1984-05-02 |
Other References:
See also references of EP 0288567A4
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