发明名称 POLYETHYLENE MULTI-LAYER POROUS MEMBRANE, PROCESS FOR PRODUCTION THEREOF, AND SEPARATORS FOR CELLS
摘要 A multi-layer, microporous polyethylene membrane having at least two layers, which comprises (a) a microporous polyethylene resin layer A comprising high-density polyethylene A having 0.2 or more terminal vinyl groups per 10,000 carbon atoms when measured by infrared spectroscopy, and (b) a microporous polyethylene resin layer B comprising high-density polyethylene B having less than 0.2 terminal vinyl groups per 10,000 carbon atoms when measured by infrared spectroscopy, has well-balanced permeability, mechanical strength, heat shrinkage resistance, shutdown properties, meltdown properties and oxidation resistance.
申请公布号 EP1930157(B1) 申请公布日期 2013.04.24
申请号 EP20060810667 申请日期 2006.09.27
申请人 TORAY BATTERY SEPARATOR FILM CO., LTD. 发明人 TAKITA, KOTARO;KIKUCHI, SHINTARO
分类号 B32B27/32;B32B5/32;H01M2/16 主分类号 B32B27/32
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