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:
Aug. 02, 2011
Filed:
Jan. 26, 2007
Applicant:
Takeshi Sato, Kanagawa, JP;
Inventor:
Takeshi Sato, Kanagawa, JP;
Assignee:
NOK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An NBR composition, which comprises NBR, and white carbon having a specific surface area (BET method) of 30-110 m/g, preferably 30-60 m/g, can be vulcanized by a vulcanization system consisting of an organic peroxide and sulfur or a sulfur-generating compound, and can give vulcanization moldings having equivalent compression set characteristics to those of expensive hydrogenated NBR vulcanization moldings, and thus can be effectively used as a vulcanization molding material for seal materials calling for such characteristics, for example, O rings, gaskets, packings, oil seals, etc.