发明申请
US20080286593A1 MULTI-LAYER ARTICLES PREPARED FROM MICROPOROUS MATERIALS 审中-公开
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MULTI-LAYER ARTICLES PREPARED FROM MICROPOROUS MATERIALS
摘要:
Provided is a multi-layer article including (1) a sheet of microporous material having opposing surfaces, and (2) an adhesive composition applied over at least a portion of at least one of the surfaces of the sheet. The microporous material contains (A) a polymeric matrix component of 5 to 100 weight percent of low melt flow index polypropylene; 0 to 90 weight percent of ultrahigh molecular weight polyethylene; and 0 to 90 weight percent of high density polyethylene; (B) a finely divided, particulate filler component dispersed throughout the polymeric matrix (A) including siliceous and non-siliceous materials; and (C) a network of interconnecting pores communicating substantially throughout the microporous material, the pores constituting 10 to 80 percent by volume of the microporous material, wherein the weight ratio of filler component (B) to polymeric matrix component (A) ranges from 0.1 to 10.0.
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