To prepare a porous film excellent in permeable performance, mechanical strengths and shutdown temperature and having low shrinkage and film-breaking resistance at high temperatures, to provide a separator for nonaqueous electrolyte cells obtained by using the porous film, the nonaqueous electrolyte cell using the separator, to prepare an electrolyte film composed of the porous film, and to provide a solid polymer type fuel cell using the electrolyte film.
The porous film is obtained by crosslinking a resin composition comprising polyolefins having ≥500,000 weight average molecular weight, a resin component having double bonds in the molecule and a modified polyolefin in which a compound having a polar group is grafted.
COPYRIGHT: (C)2005,JPO&NCIPI
Kazushige Yamamoto
| JP2002121313A | ||||
| JP2002164033A |
Koichi Kajisaki
Yuzo Ozaki
Toshihiko Taniguchi