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. 24, 1976
Filed:
Feb. 28, 1974
Sakae Inouye, Kodaira, JA;
Suminobu Kurahashi, Kodaira, JA;
Norio Wada, Kodaira, JA;
Motokazu Kikuchi, Kodaira, JA;
Kinji Masuda, Higashimurayama, JA;
Tsuneharu Akiyama, Akishima, JA;
Toshiyuki Osaki, Higashimurayama, JA;
Bridgestone Tire Company Limited, Kyobashi, JA;
Abstract
This invention relates to an improvement of the adhesion of a metallic material such as copper, copper alloys and other metals coated therewith with a vulcanizable rubber composition. It is realized by previously adding orthoboric acid or a metal borate to the rubber composition in order to proceed with metal-rubber bonding reaction and vulcanization reaction in good balance, and vulcanizing an assembly of the metallic material and the boric compound containing rubber composition closely contacted therewith.