Battery polymeric material, battery separator, battery...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From organic oxygen-containing reactant

Reexamination Certificate

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Details

C528S086000, C528S125000, C528S422000, C429S472000, C429S176000, C429S247000, C429S167000

Reexamination Certificate

active

07022812

ABSTRACT:
A lithium battery employs for a battery separator and a battery insulating packing and the like a battery polymeric material comprising repeating units wherein p-phenylene is combined with one type of group selected from the group composed of oxygen, a methylene group, an isopropylidene group, a carbonyl group, a carbonyldioxy group, a carboxylic acid anhydride group, an amide group, an ureylene group and a sulfonyl group, or a polymeric material comprising at least two types of repeating units wherein p-phenylene is combined with one type of group selected from the group composed of oxygen, a methylene group, an isopropylidene group, a carbonyl group, a carbonyldioxy group, a carboxylic acid anhydride group, an amide group, an ureylene group, a sulfonyl group, sulfur and a carbonyloxy group.

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Tanaka et al; Alkaline battery separators; Japan Vilene Co., Ltd., Japan, Apr. 2000; Chem Abstract 132:239425.

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