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, 2026
Filed:
Jan. 19, 2023
Applicant:
Mitsuboshi Belting Ltd., Kobe, JP;
Inventor:
Toshiki Ozaki, Hyogo, JP;
Assignee:
Mitsuboshi Belting Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/16 (2006.01); C08F 210/16 (2006.01); C08K 3/04 (2006.01); C08K 3/34 (2006.01); F16G 5/04 (2006.01); F16G 5/20 (2006.01);
U.S. Cl.
CPC ...
C08L 23/16 (2013.01); C08F 210/16 (2013.01); C08K 3/04 (2013.01); C08K 3/346 (2013.01); F16G 5/04 (2013.01); F16G 5/20 (2013.01); C08F 2810/20 (2013.01); C08K 2201/014 (2013.01); C08L 2205/16 (2013.01); C08L 2312/00 (2013.01);
Abstract
A rubber composition for a power-transmission belt includes: a polymer component including an ethylene-α-olefin elastomer; carbon black; and clay, in which the ethylene-α-olefin elastomer has a Mooney viscosity at 125° C. of 25 ML (1+4) 125° C. or less, the clay has a pH of 5.5 or higher, a total amount of the carbon black and the clay is 80 parts by mass to 180 parts by mass with respect to 100 parts by mass of the polymer component, and a mass ratio of the carbon black to the clay is clay/carbon black=0.2/1 to 1.2/1.