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. 11, 1992
Filed:
May. 26, 1989
Applicant:
Inventors:
Tomoharu Yamada, Musashino, JP;
Ryota Fujio, Akigawa, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08C / ;
U.S. Cl.
CPC ...
5253323 ; 5253593 ; 5253594 ;
Abstract
A novel halogenated polybutadiene series elastomer is produced by reacting a polybutadiene series elastomer with a particular active halogen group-containing compound in the presence of a particular organic halogenating agent. The resulting halogenated polybutadiene series elastomer can be subjected to heat-resistant crosslinking with a particular polyvalent amine, and is suitable for the preparation of rubber compositions for tire requiring the heat resistance.