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:
Mar. 05, 1991
Filed:
Dec. 08, 1988
Applicant:
Inventors:
Nobuhide Ishihara, Oxford, GB;
Masahiko Kuramoto, Ichihara, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
526308 ; 585 12 ; 585 17 ; 585 20 ;
Abstract
A novel crystalline vinylcyclohexane-based polymer having a repeating unit represented by the general formula: ##STR1## (wherein all the symbols are as defined in the appended claims), a degree of polymerization of at least 5 and mainly syndiotactic configuration. This polymer is produced by hydrogenating a styrene-based polymer having a repeating unit represented by the general formula: ##STR2## (wherein all the symbols are as defined in the appended claims), a degree of polymerization of at least 5 and mainly syndiotactic configuration.