Heat stabilized ABS-polycarbonate polymer blend compositions

Details Heat stabilized ABS-polycarbonate polymer blend compositions Heat stabilized ABS-polycarbonate polymer blend compositions

1990-04-25

1991-10-08

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 93, 524191, 524791, 524442, C08K 546, C08K 548, C08K 334

Patent

active

050555057

ABSTRACT:
A polycarbonate blend composition comprising 95-5 wt % of a polycarbonate resin, 5-95% of an ABS resin and 0-01-5 parts per hundred of a heat stabilizer (relative to the combined resin weight). The heat stabilizers are selected from benzothiazoles of formula: ##STR1## wherein R is selected from hydrogen, alkyl, aryl and benzothiazolyl; benzimidazole compounds of formula: ##STR2## wherein R is selected from hydrogen, alkyl, aryl and benzimidazolyl; hydrazine compound of formula: ##STR3## wherein R is alkyl, and cation exchange materials selected from metal salts of silicaluminate zeolites, metal salts of triphosphates and cation exchange resins. These poly blend composition display improved impact resistance.

REFERENCES:
patent: 3884874 (1975-05-01), Rosenberger et al.
patent: 4472554 (1984-09-01), Grigo et al.
patent: 4818777 (1989-04-01), Braig

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