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:
Aug. 02, 1988
Filed:
Oct. 21, 1986
Applicant:
Inventors:
Yoshiyuki Kohno, Yokohama, JP;
Kenichi Tomita, Tokyo, JP;
Minoru Takamizawa, Joetsu, JP;
Tetsuya Mayuzumi, Kawagoe, JP;
Shigehiro Nagura, Joetsu, JP;
Akira Yamamoto, Joetsu, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; G02C / ;
U.S. Cl.
CPC ...
522114 ; 3511 / ; 522116 ; 522120 ; 522123 ; 525288 ; 264-14 ; 264-26 ;
Abstract
A contact lens comprising a lens substrate in shape of a lens which comprises a triorganovinylsilane based polymer, said lens substrate having a hydrophilic polymeric chain grafted onto the surface thereof. This contact lens is not only excellent in oxygen permeability, mechanical strength, dimensional stability, vision correcting ability, staining resistance and handleability, but also good in affinity with eyes due to good hydrophilic property possessed by the surface, which can be worn continuously for a long time.