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. 20, 2025
Filed:
May. 26, 2022
Applicant:
Bridgestone Corporation, Tokyo, JP;
Inventor:
Tomohiro Urata, Tokyo, JP;
Assignee:
BRIDGESTONE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 3/04 (2006.01); F15B 15/10 (2006.01);
U.S. Cl.
CPC ...
C08K 3/04 (2013.01); C08K 3/041 (2017.05); C08K 2201/001 (2013.01); F15B 15/103 (2013.01);
Abstract
The technical problem of the present disclosure is to provide a conductive rubber composition for sensing that has good responsiveness of changes in electrical resistance to strain and can accurately detect the occurrence of cracks. The solution is a conductive rubber composition for sensing, containing a rubber component and carbon black, wherein the rubber component contains 80% by mass or more of acrylonitrile-butadiene rubber with an acrylonitrile unit content of more than 45% by mass, a loss tangent (tan δ) at 1% strain is 0.6 or less, and a hysteresis loss (Wd/Ws) at 70% elongation is 0.43 or more.