Laminated microporous article
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United States of America Patent
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-
Sep 8, 1981
Issued Date -
N/A
app pub date -
May 24, 1979
filing date -
Jun 16, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A laminated microporous article consisting of at least two layers or plies, the first comprising either a thermoset or thermoplastic microporous material and the second comprising a polyester non-woven, heat bonded (in distinction to adhesive bonded) web. The resulting laminated microporous article is especially useful as a battery separator and exhibits superior properties including improved electrical resistance, toughness and tear strength, and flexibility.
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