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:
May. 02, 1989
Filed:
Jan. 13, 1988
Yoshihiko Suzuki, Hiratsuka, JP;
Masashi Kida, Hiratsuka, JP;
Asahiro Ahagon, Fujisawa, JP;
Yuichi Saitoh, Isehara, JP;
Youichi Yamaguchi, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
Tread rubber compositions or use in automobile tires are disclosed which essentially comprise matrix rubbers and specified amounts of a selected class of low-hardness vulcanized rubbers having specified particle sizes. The matrix and vulcanized rubbers include carbon black, respectively, in amounts defined by the equation 0<X.ltoreq.Y/3 where X is the amount of carbon black present in the vulcanized rubber, and Y is the amount of carbon black in the matrix rubber, each such amount being based on the total weight of the matrix rubber. The resulting tire is rendered highly resistant to snowy and icy conditions and also to abrasive wear.