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:
Sep. 10, 2024
Filed:
Feb. 14, 2019
Applicant:
Mitsuboshi Belting Ltd., Kobe, JP;
Inventors:
Assignee:
Mitsuboshi Belting Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16G 1/21 (2006.01); B32B 1/00 (2024.01); B32B 5/02 (2006.01); B32B 25/02 (2006.01); B32B 25/10 (2006.01); B32B 25/14 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08K 5/09 (2006.01); C08K 5/14 (2006.01); F16G 1/04 (2006.01); F16G 1/12 (2006.01); F16G 1/28 (2006.01);
U.S. Cl.
CPC ...
F16G 1/21 (2013.01); B32B 1/00 (2013.01); B32B 5/026 (2013.01); B32B 25/02 (2013.01); B32B 25/10 (2013.01); B32B 25/14 (2013.01); C08K 3/04 (2013.01); C08K 3/22 (2013.01); C08K 5/09 (2013.01); C08K 5/14 (2013.01); F16G 1/04 (2013.01); F16G 1/12 (2013.01); F16G 1/28 (2013.01); B32B 2250/02 (2013.01); B32B 2264/10 (2013.01); B32B 2264/301 (2020.08); B32B 2413/00 (2013.01); C08K 2003/2296 (2013.01);
Abstract
A V-ribbed belt in which a friction transmission surface of a compression rubber layer is coated with a knit fabric is provided. The compression rubber layer is formed of the cured product of a rubber composition containing an ethylene-α-olefin elastomer and carbon black wherein the carbon black contains a soft carbon having a primary particle diameter of at least 40 nm and a hard carbon having a primary particle diameter of less than 40 nm. The ratio between the number of particles of the soft carbon and hard carbon is former/latter=3/97 to 25/75.