Heat-resistant stretched film and production process thereof

Details Heat-resistant stretched film and production process thereof Heat-resistant stretched film and production process thereof

1991-04-26

1994-02-15

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525537, C08G 7514, C08F28300

Patent

active

052868141

ABSTRACT:
A heat-resistant stretched film is obtained by stretching a resin composition comprising 100 parts by weight of a poly(arylene sulfide) of a substantially linear structure and 5 to less than 100 parts by weight of a melt-stable poly(arylene thioether-ketone). The poly(arylene sulfide) has a melt viscosity of at least 1,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1. The poly(arylene thioether-ketone) has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- groups are bonded in the para position to each other through the benzene ring, and has the following physical properties (a)-(c):

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Indian J. Chem., vol. 21A, May 1982, pp. 501-502.

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