Multilayer film including a polyurethane

Details Multilayer film including a polyurethane Multilayer film including a polyurethane

1979-12-26

1981-10-20

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

138118, 1381181, 426105, 426127, 428 36, 428220, 428332, 428336, 428337, 4284231, 4284233, 4284246, 428518, 428520, 428522, 428910, B32B 2740, C08G 1842, B65D 8134

Patent

active

042961564

ABSTRACT:
A flexible biaxially oriented multilayer film includes at least one layer having a thickness of at least about 0.5 mil and consisting essentially of an aromatic polyurethane, the film having been subjected to a biaxial stretching in the range of from about 12 to about 18, preferably about 16.

REFERENCES:
patent: 3591561 (1971-07-01), Kazama
patent: 3912843 (1975-10-01), Brazier
patent: 3956544 (1976-05-01), Harrington
patent: 3982986 (1976-09-01), Stone
patent: 4123589 (1978-10-01), Korlatzki
patent: 4178401 (1979-12-01), Weinberg
patent: 4196240 (1980-04-01), Lustig

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