Breathable films prepared from melt embossed polyolefin/filler p

Details Breathable films prepared from melt embossed polyolefin/filler p Breathable films prepared from melt embossed polyolefin/filler p

1987-03-11

1988-10-11

Kittle, John E.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428159, 4283179, 428409, 428910, 2642884, 2642888, B32B 312, B32B 522, B29D 724, D02J 106

Patent

active

047770732

ABSTRACT:
A breathable polyolefin film is prepared by melt embossing a highly filled polyolefin film to impose a pattern of different film thickness therein and by stretching the melt embossed film to impart greater permeability in the areas of reduced thickness in comparison to the areas of greater thickness.

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Parameters Affecting Processing of Polymers and Polymer Blends, Skoroszewski, Plastics & Polymers, Jun. 1972, pp. 142-152.

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