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. 24, 2015
Filed:
Feb. 01, 2012
Satoshi Furukawa, Yamatokoriyama, JP;
Kazuma Yamamoto, Yamatokoriyama, JP;
Satoshi Furukawa, Yamatokoriyama, JP;
Kazuma Yamamoto, Yamatokoriyama, JP;
GATES CORPORATION, Denver, CO (US);
Abstract
The durability of a frictional power transmission belt is improved. A V-ribbed belt () comprises an adhesion rubber portion () and a compression rubber portion () provided below the adhesion rubber portion (). A cord () that is a tension member of the belt is embedded in the adhesion rubber portion (). The adhesion rubber portion () includes an upper layer (A) constituting the upper side and a lower layer (B) constituting the lower side, which are located across the cord (). The upper layer (A) and the lower layer (B) are obtained by vulcanizing a rubber composition including a high-viscosity elastomer such as EPM or EPDM, and a low-viscosity elastomer which is lower in Mooney viscosity than the high-viscosity elastomer, and contain modified nylon microfibers as short fibers (A), (B), respectively. The short fibers (A), (B) are oriented, respectively, in the width direction and longitudinal direction of the belt.