Polyolefin oil resistant film using high isotactic content...

Details Polyolefin oil resistant film using high isotactic content... Polyolefin oil resistant film using high isotactic content...

2005-01-18

2005-01-18

Tarazano, D. Lawrence (Department: 1773)

Stock material or miscellaneous articles

Composite

Of metal

C428S213000, C428S516000

Reexamination Certificate

active

06844078

ABSTRACT:
A coextruded multilayer film, having of at least a high crystalline propylene homopolymer resin layer of isotactic content greater than about 95%; a discharge-treated surface on one side of said polyolefin resin layer; an amount of hydrocarbon resin up to 10% by weight of the high crystalline propylene homopolymer of greater than about 95% isotactic content; and on the high crystalline propylene homopolymer resin layer side opposite said discharge-treated surface, a heat sealable layer or winding layer having an antiblock is disclosed.

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