Oriented films from high acrylonitrile polymer compositions

Details Oriented films from high acrylonitrile polymer compositions Oriented films from high acrylonitrile polymer compositions

1973-05-08

1976-10-12

Turer, Richard B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260827, 260829, 260879, 260880R, 426106, C08L 5100, C08L 5300

Patent

active

039858278

ABSTRACT:
Oriented film is provided formed from a blend of a homogeneous copolymer resin derived from units of acrylonitrile (70 to 93% molar) and at least one aromatic olefine (30 to 7% molar) with a graft copolymer having a diene rubber substrate and a superstrate which is a homogeneous copolymer derived from units of acrylonitrile (70 to 93% molar) and at least one aromatic olefine (30 to 7% molar) the blend containing 5 to 15% by weight of rubber and the refractive indices of the substrate and superstrate being within 0.005 of that of the homogeneous copolymer resin, the film having a Gardner haze of less than 10% having been drawn in at least one direction to a ratio of at least 1.7:1 at a temperature of between 105.degree. and 155.degree. C.

REFERENCES:
patent: 3451538 (1969-06-01), Trementozzi
patent: 3615710 (1971-10-01), Lee et al.

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