Polycarbonate compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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524127, 524141, 525 67, 525 92E, C08L 6900

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active

060666862

ABSTRACT:
The present invention relates to a thermoplastic resin comprising 100 parts by weight of a resin mixture comprising 30 to 95% by weight of a polycarbonate resin (a), 5 to 70% by weight of a polystyrene resin (b), 0.5 to 20 parts by weight of a specific block copolymer (c) and, if necessary, 0.1 to 20 parts by weight of a polyalkylene terephthalate (d), and/or 0.1 to 20 parts by weight of a polyphenylene ether resin (e), and a flame-retardant thermoplastic resin composition prepared by blending the above composition with 1 to 40 parts by weight of an organophosphorus compound (f) and, if necessary, 0.05 to 5 parts by weight of a fluoroethylene polymer (g).

REFERENCES:
patent: 4748203 (1988-05-01), Van Abeelen
patent: 5234979 (1993-08-01), Todtemann
patent: 5274034 (1993-12-01), Morgan
patent: 5627228 (1997-05-01), Kobayashi
"Miscibility Study of Polycarbonate and SBS Triblock Copolymer Blends", Chiu, et al, Journal of Polymer Research vol. 1, No. 1, pp. 93-101, Jan. 1994.

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