Continuous process for producing, by irradiation, a microporous rubber composition suitable for battery separators
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United States of America Patent
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Jul 22, 1980
Grant Date -
N/A
app pub date -
Jun 16, 1978
filing date -
Jun 16, 1978
priority date (Note) -
Expired
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Abstract
A continuous process for preparing a microporous flexible shape or sheet of a sulfur-free, cured polymeric material of a curable rubber, an ethylene-propylene copolymer or mixtures of the curable rubber and ethylene-propylene copolymer of a predetermined flexibility ranging from a drapable, conformable shape to a stiff material; electron beam curing of the curable polymeric material at low irradiation levels is one advantage of the continuous process as well as the capability of producing also backed materials using considerably thinner polymeric material layers thereon; the products obtained thereby are suitable as battery separators.
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