| abstract |
PURPOSE: To obtain a thermoplastic resin composition having remarkably improved heat-resistance and residence thermal stability, by compounding a phosphoric acid ester and an organic carboxylic acid to a composition composed of an imidated copolymer and a polyester or polycarbonate. n CONSTITUTION: The objective composition can be produced by compounding (A) 100pts.(wt.) of a thermoplastic resin containing (A 1 ) 2W98(wt)% imidated copolymer composed of 0W40% rubbery polymer, 30W90% aromatic vinyl monomer residue and 3W70% unsaturated dicarboxylic acid imide residue, (A 2 ) 2W98% one or more polymers selected from polycarbonate and polyester and (A 3 ) 0W70% thermoplastic polymer with (B) 0.01W1.00pts. of an organic phosphoric or phosphorous acid ester, acidic phosphoric or phosphorous acid ester and/or their metallic salts and (C) 0W5pts. of an organic carboxylic acid or its anhydride. n COPYRIGHT: (C)1987,JPO&Japio |