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:
Oct. 11, 2022
Filed:
Oct. 16, 2018
Applicant:
Nok Corporation, Tokyo, JP;
Inventors:
Daiki Takekawa, Kanagawa, JP;
Isao Watanabe, Kanagawa, JP;
Assignee:
NOK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 11/00 (2006.01); F16J 15/08 (2006.01); B32B 15/06 (2006.01);
U.S. Cl.
CPC ...
F02F 11/002 (2013.01); F16J 15/08 (2013.01); B32B 15/06 (2013.01); B32B 2581/00 (2013.01); Y10T 428/215 (2015.01);
Abstract
A gasket material, in which a crosslinked rubber layer compounding 30 to 200 parts by weight of titanium oxide based on 100 parts by weight of NBR or hydrogenated NBR is formed on a metal plate, improves blister resistance, and thus exhibits an excellent effect of preventing rubber peeling of the gasket in the engine and leading to an improvement of engine malfunction. Further, the use of NBR or hydrogenated NBR results in an advantage of low cost relative to that of fluororubber. Therefore, the gasket material of the present invention is effectively used as a cylinder head gasket.