The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 1996
Filed:
Jan. 02, 1996
Yasuhiro Yokoyama, Nagoya, JP;
Yuriko Watanabe, Nagoya, JP;
Akinori Okumura, Nagoya, JP;
Shoji Ichinohe, Gunma-ken, JP;
Toshio Yamazaki, Gunma-ken, JP;
Menicon Co., Ltd., Nagoya, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
An ocular lens material made of a copolymer obtained by polymerizing copolymerizable components comprising (A) a fluorine-containing di(meth)acrylate having urethane bonds, of the formula (I): ##STR1## wherein each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or a methyl group, each of R.sup.3 and R.sup.4 independently represents a C.sub.5-15 alkylene group, R.sup.5 represents a C.sub.1-20 alkylene group containing from 1 to 20 fluorine atoms, each of m and n independently represents an integer of from 1 to 5, and each of x and y independently represents 0 or 1, (B) a silicone-containing di(meth)acrylate having urethane bonds, of the formula (II): ##STR2## wherein each of R.sup.6 and R.sup.7 independently represents a hydrogen atom or a methyl group, each of R.sup.8 and R.sup.9 independently represents a C.sub.1-10 alkylene group or a C.sub.2-10 ether group, R.sup.10 represents a siloxane structure of the formula (III): ##STR3## wherein r is an integer of from 1 to 50, and each of p and q independently represents an integer of from 1 to 5, and (C) a monomer having an unsaturated double bond, copolymerizable with the fluorine-containing di(meth)acrylate (A) and the silicone-containing di(meth)acrylate (B).