POROUS FILM MADE OF POLYETHYLENE RESIN AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To prepare the subject film having a suitable strength as a battery separator and high thermal property by including a specific aliphatic hydrocarbon. SOLUTION: This film is mainly composed of (A) a polyethylene resin having 30×10 -100×10 viscosity-average molecular weight and...

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Hauptverfasser:	MOCHIZUKI TATSUYA, NAKADA MAMORU, WATANABE TAKASHI, FUJII TOSHIO, USAMI YASUSHI, NONOBE YASUHEI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prepare the subject film having a suitable strength as a battery separator and high thermal property by including a specific aliphatic hydrocarbon. SOLUTION: This film is mainly composed of (A) a polyethylene resin having 30×10 -100×10 viscosity-average molecular weight and contains (B) 3-20wt.% of an aliphatic hydrocarbon (e.g. synthetic waxhaving =400g/25μm pinsticking strength, an excellent shut down property at 160 deg.C and