Microporous polyethylene film through liquid-liquid phase separation mechanism and preparing method thereof
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United States of America Patent
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Issued Date -
Apr 26, 2007
app pub date -
Jun 18, 2005
filing date -
Jun 18, 2005
priority date (Note) -
Abandoned
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Abstract
Disclosed in the present invention are a microporous polyethylene film and a method of manufacture thereof. The polyethylene microporous film manufactured according to the present invention may contribute to an increased productivity of stable products as its extrusion and stretching may be done readily. And thus manufactured product may be used for battery separators and various filters owing to its high gas permeability, superior puncture strength, and small ratio of shrinkage.
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