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:
Dec. 14, 1993
Filed:
Oct. 13, 1992
Applicant:
Inventor:
Akikazu Nakano, Ichihara, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
528481 ; 528503 ; 526293 ; 526334 ; 526347 ; 5263471 ; 5263472 ; 26433117 ; 264345 ;
Abstract
Styrene-based polymer moldings with a crystallinity of at least 20% obtained by subjecting moldings of crystalline styrene-based polymers having mainly syndiotactic configuration to heat treatment at a temperature of 120.degree. to 270.degree. C. These moldings are excellent in physical properties such as heat resistance and chemical resistance, and thus are expected to find various applications, for example, in general construction materials, electric or electronic devices, and car parts.