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:
Feb. 05, 1991
Filed:
May. 01, 1989
Hiroshi Asaumi, Kamakura, JP;
Zenji Shimura, Odawara, JP;
Takehiro Yoshida, Tokyo, JP;
Kenji Tadakuma, Chigasaki, JP;
Shinzaburo Suzuki, Yokohama, JP;
Norio Takada, Tokyo, JP;
Kenichi Nakamura, Yokohama, JP;
Takene Hirai, Tokyo, JP;
Nichias Corporation, Tokyo, JP;
Abstract
Use of a composition comprising a polytetrafluoroethylene resin and a fine inorganic powder for a gasket, said composition being characterized in that the polytetrafluoroethylene resin is at least 5% by weight and the fine inorganic powder is at least 40% by weight, based on the total amount of the polytetrafluoroethylene resin and the fine inorganic powder; the total amount of the polytetrafluoroethylene resin and the fine inorganic powder is at least 80% by weight based on the entire amount of the composition; and the polytetrafluoroethylene resin and the fine inorganic powder are mutually uniformly dispersed and mixed with each other.