Biaxially-stretched film made of poly(arylene sulfide)-based...

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B29C 55/12 (2006.01) B29C 55/00 (2006.01) C08J 5/18 (2006.01) C08L 81/02 (2006.01) C08L 25/00 (2006.01) H05K 1/03 (2006.01)

Patent

CA 1318476

- 1 - ABSTRACT OF THE DISCLOSURE A biaxially-stretched film is made of a resin composition composed of 100 parts by weight of a substantially linear poly(arylene sulfide) having a melt viscosity of at least 1,000 poises and 0.5-80 parts by weight of a styrene-based resin. The film is produced by diluting a master batch, which has been prepared in advance and is composed of the poly(arylene sulfide) and styrene-based resin, with an additional supply of the poly(arylene sulfide) so as to prepare a resin composition containing the polystyrene-based resin in an amount of 0.5-80 parts by weight per 100 parts by weight of the poly(arylene sulfide), and then biaxially stretching the thus-prepared resin composition.

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