Flame-resistant polymer compositions

Details Flame-resistant polymer compositions Flame-resistant polymer compositions

1977-03-04

1979-10-30

Hoke, V. P.

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

Synthetic resins

Ethylenically unsaturated reactant admixed with a preformed...

525 20, 260 457R, 260 457P, 260 457PH, 260 459NP, 260 4595G, C08K 552

Patent

active

041728580

ABSTRACT:
Flameproofing of aromatic polymers is achieved by adding a synergistic combination of (a) a phosphorus compound and (b) a compound of formula R(CH.sub.2 X).sub.n, wherein R is an aromatic or heterocyclic residue, X is a leaving group and n is at least 2. Preferred phosphorus compounds are esters of phosphoric acid. The flameproofed polymers may contain aromatic groups in the main chain or as side-groups, for instance styrene polymers and copolymers, aromatic polyesters, polycarbonates and polyphenylene oxides.

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patent: 4057531 (1977-11-01), Dubeck

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