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:
May. 07, 2019
Filed:
Apr. 30, 2015
Daicel Value Coating Ltd., Tokyo, JP;
Daicel Corporation, Osaka-shi, Osaka, JP;
Kazuyuki Okada, Amagasaki, JP;
Kanae Nishimura, Amagasaki, JP;
Yoshimichi Okano, Himeji, JP;
Takayuki Yaegashi, Himeji, JP;
Keiichi Osano, Fuji, JP;
Daicel Value Coating Ltd., Tokyo, JP;
Daicel Corporation, Osaka-shi, Osaka, JP;
Abstract
A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer containing an olefin unit having a Calkyl group as a side chain thereof and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.