POROUS FILM AND METHOD FOR MANUFACTURING POROUS FILM

• Main Authors: NAKASHIMA, Shota, IWASAKI, Takuma
• Format: Patent
• Language: English; French; Japanese
• Published: 11.05.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

A porous film that contains a thermoplastic resin and that is provided with a dense structure layer, the proportion of α-crystal strength relative to β-crystal strength of the thermoplastic resin in the dense structure layer being 5.0 or above. L'invention concerne un film poreux qui contient une résine thermoplastique et qui est pourvu d'une couche de structure dense, la proportion de résistance de cristal α par rapport à la résistance de cristal β de la résine thermoplastique dans la couche de structure dense étant de 5,0 ou plus. 熱可塑性樹脂を含み、緻密構造層を備え、緻密構造層における熱可塑性樹脂のβ晶強度に対するα晶強度の割合が５．０以上である、多孔膜。