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n4google.
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:266745137
rdf:type
prov:Entity
prov:value
In the present invention, the first layer of a fluoropolymer having carboxylic acid groups (--COOM wherein M is a hydrogen atom or an alkali metal) and facing the cathode side, is preferably made of a hydrolyzed copolymer of tetrafluoroethylene with ##STR1## wherein m is 0 or 1, n is from 1 to 5 and R is an alkyl group having from 1 to 10 carbon atoms, which preferably has an ion exchange capacity
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n4:fr
Subject Item
isap:131693183
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isa:266745137
Subject Item
isap:215359554
prov:wasDerivedFrom
isa:266745137