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. 27, 1991
Filed:
Dec. 28, 1989
Applicant:
Inventors:
Shizuo Kitahara, Kawaguchi, JP;
Nobuo Nagata, Yokohama, JP;
Assignee:
Nippon Zeon Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
5253329 ; 5253595 ; 525369 ; 525370 ; 525373 ; 525377 ; 5253325 ; 5253327 ;
Abstract
A crosslinked polymer having shape memorizing property, said crosslinked polymer being obtained by thermally reversibly crosslinking a base polymer composed of a blocked copolymer of an aromatic vinyl monomer and a conjugated diene monomer, the base polymer having a glass transition temperature of 70.degree. to 140.degree. C., and the glass transition temperature being higher than the dissociation temperature of the thermally reversible crosslinkage contained in the crosslinkage polymer.