Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1988-09-29
1991-10-08
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428159, 4283179, 428403, 428457, 428461, 428698, 428910, 2642884, 2642888, B32B 302
Patent
active
050553380
ABSTRACT:
A breathable metallized polyolefin film is prepared by: melt embossing a highly filled polyolefin film to impose a pattern of different film thickness therein; stretching the melt embossed film to impart greater permeability in the area of reduced thickness in comparison to the areas of greater thickness; and coating the resulting stretched embossed film with a suitable metal.
REFERENCES:
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patent: 4116892 (1978-09-01), Schwarz
patent: 4205021 (1980-05-01), Morita et al.
patent: 4350655 (1982-09-01), Hage
patent: 4472328 (1984-09-01), Sugimoto et al.
patent: 4585604 (1986-04-01), Okuyama et al.
patent: 4777073 (1988-10-01), Sheth
Sheth Paresh J.
Thompson Francis M.
Exxon Chemical Patents Inc.
Hunt John F.
Ryan Patrick J.
Simmons T. Dean
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