Textured surface polypropylene film

Details Textured surface polypropylene film Textured surface polypropylene film

1979-04-16

1981-09-01

Silverman, Stanley S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

2642107, 361323, 428409, B32B 326

Patent

active

042872499

ABSTRACT:
A thin polypropylene film with improved surface impregnation properties for dielectric fluids is disclosed. The film has one predetermined textured surface consisting essentially of fibroids intertwined and overlapping, and coextensive and uniform over its continuous length and is characterized by a space factor of above about 5%.

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patent: 3969562 (1976-07-01), Suzuki
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