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:
Apr. 21, 1998
Filed:
Feb. 13, 1996
Applicant:
Inventors:
Miyuki Kamiya, Kasugai, JP;
Naotaka Kamiya, Kasugai, JP;
Noriko Iwata, Kasugai, JP;
Yasushi Yamamoto, Gunma-ken, JP;
Yasuo Tarumi, Gunma-ken, JP;
Assignee:
Menicon Co., Ltd., Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
523106 ; 3511 / ; 523108 ; 524578 ; 524545 ; 526247 ;
Abstract
A water-absorptive soft contact lens comprising a polymer prepared by polymerizing a monomer mixture comprising (A) a fluorine-containing styrene derivative represented by the general formula (I): ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, m is an integer of 1 to 3 and n is 0 or an integer of 1 to 7, and (B) N, N-dimethyl(meth)acrylamide. The water-absorptive soft contact lens has excellent oxygen permeability, high mechanical strength and excellent flexibility independent of water content.