METHOD FOR PRODUCING MICROPOROUS FILM, AND BATTERY SEPARATOR

PROBLEM TO BE SOLVED: To provide a method for producing a microporous film which can efficiently produce a microporous film with high pore density and porosity.SOLUTION: The method for producing microporous film includes the steps of (A) drawing a polypropylene resin composition in a molten state at...

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1. Verfasser:	NADA JUN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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