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:
Nov. 29, 1988
Filed:
Mar. 18, 1987
Applicant:
Inventors:
Yasukichi Yanagihara, Kakamigahara, JP;
Takuo Kato, Kasugai, JP;
Assignee:
Tomei Sangyo Kabushiki Kaisha, Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
523106 ; 3511 / ; 3511 / ; 524539 ; 524515 ; 525 10 ; 525 47 ; 525419 ; 528323 ;
Abstract
An optically transparent hydrogen forming material comprising a copolymer of an optically transparent polyester having a molecular weight of 1,000 to 100,000 and at least one of polymerizable group in its molecule and N-vinyllactam. The hydrogel forming material has an excellent optical property, high gas-permeability and excellent mechanical property.