Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1992-12-18
1994-05-31
Lesmes, George F.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
525 95, 525191, 524427, C08F11000
Patent
active
053170350
ABSTRACT:
Polyolefin resin compositions and oriented microporous films prepared from same comprising an ethylene-propylene block copolymer having an ethylene content of about 10 to about 50 wt %, a propylene homopolymer or random propylene copolymer having up to about 10 wt % of a comonomer of ethylene or an .alpha.-olefin of 4 to 8 carbon atoms, a low molecular weight polypropylene, a beta-spherulite nucleating agent and an inorganic filler. The microporous films have improved breathability, strength, toughness and break elongation.
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Bauer Charles W.
Clingman Scott R.
Jacoby Philip
Tapp William T.
Amoco Corporation
Hensley Stephen L.
Lesmes George F.
Poulos Nicholas A.
Raimund Chris
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