Flame retardant blends of polycarbonate, ABS and a terpolymer

Details Flame retardant blends of polycarbonate, ABS and a terpolymer Flame retardant blends of polycarbonate, ABS and a terpolymer

1990-05-30

1991-07-30

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524143, 524145, 525 72, 525148, 526293, C08J 552, C08K 552, C08L 552

Patent

active

050361260

ABSTRACT:
Flame retardant polymer blend compositions comprise a polycarbonate polymer, an ABS resin, a phosphate ester flame retardant and a terpolymer formed from an aryl brominated monovinylic aromatic monomer, an ethylenically unsaturated nitrile monomer, and an alkyl methacrylate monomer in which the alkyl group has from 1 to 4 carbon atoms. A preferred terpolymer comprises a dibromostyrene-acrylonitrile-methyl methacrylate terpolymer.

REFERENCES:
patent: 3130177 (1964-04-01), Grabowski
patent: 3162695 (1964-12-01), Grabowski
patent: 4205140 (1980-05-01), Liebig et al.
patent: 4218544 (1980-08-01), Henton
patent: 4472554 (1984-09-01), Grigo et al.
patent: 4886855 (1989-12-01), Parsons

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