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. 24, 1992
Filed:
Dec. 20, 1990
Applicant:
Inventors:
Tetsuji Kawazura, Yokohama, JP;
Kazuyoshi Kayama, Yokohama, JP;
Yoshihisa Ogihara, Sawara, JP;
Fumiaki Yoneyama, Kamisumachi, JP;
Assignees:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Dainippon Ink and Chemicals, Incorporated, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524398 ;
Abstract
A promoter for bonding between a rubber and a steel cord, which is represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different from one another and each represents a monocarboxylic radical bonded to the adjacent Co atom through the oxygen atom which is adjacent to the carbonyl group in said monocarboxylic radical; a rubber composition containing the bonding promoter, and rubber products made from the rubber composition.