Aromatic polyamide porous film and separator for capacitor or battery using the same

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United States of America Patent

PATENT NO 8815384
APP PUB NO 20120308898A1
SERIAL NO

13519609

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A porous film includes aromatic polyamide as a constituent component that has high heat resistance, high air permeability and high affinity to electrolytes. It is a porous aromatic polyamide film including aromatic polyamide and a hydrophilic polymer, wherein the hydrophilic polymer accounts for 12 to 50 parts by mass per 100 parts by mass of the aromatic polyamide, the thickness being 2 to 30 micrometers, the Gurley air permeability being 0.5 to 300 seconds/100 ml, and the thermal shrinkage rate being −0.5 to 1.0% at 200° C.

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Patent Owner(s)

  • TORAY INDUSTRIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishibara, Kenta Otsu, JP 2 14
Sawamoto, Atsushi Otsu, JP 5 19
Tsukuda, Akimitsu Otsu, JP 40 334

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