Flameproof thermoplastic resin compositions

Details Flameproof thermoplastic resin compositions Flameproof thermoplastic resin compositions

1994-11-01

1997-07-01

Szekely, Peter A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524127, 524143, 524147, 524151, 524504, 524515, 524520, 524525, 524537, 524521, C08K 5523, C08L 5100, C08L 6900, C08L 2712

Patent

active

056439814

ABSTRACT:
The flameproof thermoplastic resin compositions of this invention comprise from 2 to 20 parts by weight of aromatic diphosphates, from 2 to 7 parts by weight of phosphorous compounds and from 0.1 to 2.0 parts by weight of polyfluoroalkyl resins per 100 parts by weight of the resin mixture consisting of from 60 to 98% by weight of polycarbonate resins, from 2 to 40% by weight of styrene-containing graft copolymer resins, and from 0 to 20% by weight of styrene-containing copolymer resins. The structural formula of said aromatic diphosphates is as follows (I): ##STR1## in which, R.sup.1 and R.sup.2 are same or different lower alkyls, R.sup.3 and R.sup.4 are same or different hydrogen atom or alkyl groups, Y is a single bond or --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --S--, --SO.sub.2 --, --O--, --CO--, or --N.dbd.N--, k is 0 or 1, and m is an integer of 0 to 4.

REFERENCES:
patent: 5122556 (1992-06-01), Kambour
patent: 5204394 (1993-04-01), Gosens et al.
patent: 5292786 (1994-03-01), Gaggar et al.

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