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:
Jan. 22, 2013
Filed:
Oct. 23, 2006
Jun Kanega, Ibaraki, JP;
Takashi Obara, Ibaraki, JP;
Katsumi Suzuki, Ibaraki, JP;
Takashi Enokida, Ibaraki, JP;
Jun Kanega, Ibaraki, JP;
Takashi Obara, Ibaraki, JP;
Katsumi Suzuki, Ibaraki, JP;
Takashi Enokida, Ibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
A fluorine-containing alloyed copolymer, which comprises a fluorine-containing elastomer copolymer having a fluorine content of not less than 64% by weight, and a resinous tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer having an amount of heat of crystal fusion ΔH of not more than 10 J/g, can give crosslinked moldings having a distinguished plasma resistance against both CFplasma treatment and Oplasma treatment, and also a distinguished cracking resistance at the plasma irradiation, and showing necessary normal state physical properties and compression set when used as seals, and capable of providing soft seals of low hardness, and attaining molding at relatively low temperatures.