发明名称 |
Film for reinforcing electrolyte membrane of polymer electrolyte fuel cell |
摘要 |
An object of the present invention is to provide a biaxially oriented film suitable as a reinforcing member for an electrolyte membrane of a polymer electrolyte fuel cell, the film having excellent hot water resistance in a high-temperature and high-humidity use environment and being capable of maintaining the reinforcing effect for a prolonged period of time. The invention resides in a biaxially oriented film for reinforcing an electrolyte membrane of a polymer electrolyte fuel cell, the film being characterized in that the film (i) contains syndiotactic polystyrene as a major component and (ii) has a Young's modulus in at least one of the machine direction and the transverse direction ranging from 4,500 to 8,000 MPa. |
申请公布号 |
US9238327(B2) |
申请公布日期 |
2016.01.19 |
申请号 |
US200912934019 |
申请日期 |
2009.03.25 |
申请人 |
TEIJIN LIMITED |
发明人 |
Mizuno Naomi;Ono Mitsumasa;Yoshida Tetsuo |
分类号 |
H01M8/02;B29C55/12;B01D69/10;B29C55/14;C08J5/18;C08J5/22;B29K25/00;H01M8/10 |
主分类号 |
H01M8/02 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A biaxially oriented film for reinforcing an electrolyte membrane of a polymer electrolyte fuel cell, the film being characterized in that the film
(i) contains syndiotactic polystyrene as a major component, wherein the syndiotactic polystyrene is present in a content ranging from 95 to 100% by weight based on the weight of all polymers constituting the film, and (ii) has a Young's modulus in at least one of the machine direction and the transverse direction ranging from 4,500 to 8,000 MPa under a temperature atmosphere of 20° C., wherein the film has a thickness ranging from 10 to 300μm. |
地址 |
Osaka JP |