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. 19, 1980
Filed:
Dec. 19, 1978
Applicant:
Inventors:
Shobu Minatono, Kashima, JP;
Hideo Takamatsu, Kashima, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
260-5 ; 260 / ; 260 / ; 260 / ; 260759 ;
Abstract
A rubber composition with improved processability and capable of affording a vulcanizate with improved properties including improved adhesion to a metal surface is disclosed. The composition comprises a modified liquid polyisoprene rubber and a natural rubber. The modified liquid polyisoprene rubber is an adduct of maleic anhydride or a derivative thereof with a liquid polyisoprene rubber with a cis-1,4 content of not less than 70% and a molecular weight of 8,000 to 100,000, the amount of said maleic anhydride or said derivative being 0.1 to 15 mol % per isoprene unit in said liquid polyisoprene rubber.