Process for improving films of poly(p-methylstyrene) and copolym

Details Process for improving films of poly(p-methylstyrene) and copolym Process for improving films of poly(p-methylstyrene) and copolym

1979-02-21

1980-09-30

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415917, 2041592, C08F 246, C08F 800

Patent

active

042254035

ABSTRACT:
This invention provides a method for improving properties of thermoplastic films that comprises irradiating films of poly(p-methylstyrene) of p-methylstyrene copolymers with acrylonitrile, or of high impact poly (p-methylstyrene) with ionizing radiation at a dosage between about 30 megarads and about 70 megarads (preferably between about 40 megarads and about 60 megarads), whereby said films are heat resistant and have increased tensile properties at elevated temperatures.

REFERENCES:
Dole; The Radiation Chemistry of Macromolecules; Academic Press, vol. II, pp. 57-96, 1973.
Chapiro, Radiation Chemistry of Polymeric Systems, Wiley & Sons, pp. 446-452, 1962.

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