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. 06, 1990
Filed:
Dec. 23, 1988
Suetou Hayashida, Chiba, JP;
Kirou Yanagimoto, Chiba, JP;
Maruzen Petrochemical Co., Ltd., Tokyo, JP;
Abstract
A rubber compounding material incorporating a cyclopentadiene-based pertroleum resin prepared by thermally copolymerizing 100 parts by weight of a cyclopentadiene-based feed or dicyclopentadiene-based feed with about 5 to 100 parts by weight of an .alpha.-olefin having from 6 to 16 carbon atoms at a temperature of from about 200.degree. to 300.degree. C. for a period of from about 10 minutes to 10 hours in the presence or absence of a solvent. A rubber composition is also disclosed, composed of this rubber compounding material in combination with a diene-based polymer. In rubber compositions for tires, the compounding material and rubber composition of the present invention greatly improve resistance to cutting and chipping of the tread.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile