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:
Apr. 01, 2025
Filed:
Mar. 06, 2020
Applicant:
Valqua, Ltd., Tokyo, JP;
Inventors:
Assignee:
VALQUA, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/16 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01); C09K 3/10 (2006.01);
U.S. Cl.
CPC ...
C08L 23/16 (2013.01); C09K 3/1006 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C09K 2200/0208 (2013.01); C09K 2200/0247 (2013.01); C09K 2200/0494 (2013.01); C09K 2200/0607 (2013.01); C09K 2200/0617 (2013.01);
Abstract
Provided is a rubber composition for sealing material which contains 100 parts by mass of a rubber component, 50 to 140 parts by mass of silica, 1 to 20 parts by mass of a silane coupling agent, and 15 to 35 parts by mass of carbon black. The rubber component is preferably an ethylene-propylene-diene rubber.