Pigmented, flame resistant polycarbonate compositions

Details Pigmented, flame resistant polycarbonate compositions Pigmented, flame resistant polycarbonate compositions

1987-06-01

1988-09-20

Jacobs, Lewis T.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524493, 524508, 524611, C08K 336, C08K 310

Patent

active

047726555

ABSTRACT:
The present invention is directed to flame retardant, pigmented polycarbonate molding compositions which properties include both good flame resistance properties and virtual freedom from streaking. The compositions are particularly suitable for use in molding machines using hot runner tools. The composition of the invention comprise a thermoplastic aromatic polycarbonate resin, a flame retarding agent, pigments, polytetrafluoroethylene--ASTM Type 3--and an amount of finely divided hydrophobic silicon dioxide sufficient for providing streaking-free molded articles.

REFERENCES:
patent: 3360498 (1967-12-01), Rawlings
patent: 3933730 (1976-01-01), Hoogeboom
patent: 4049614 (1977-09-01), Baron et al.
patent: 4223100 (1980-09-01), Reinert
patent: 4563496 (1986-01-01), Lindner et al.
patent: 4647602 (1987-03-01), Wilczak et al.
patent: 4649168 (1987-03-01), Kress et al.

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