Hoechst Aktiengesellschaft

Ruhrchemie Aktiengesellschaft

Peter Munch

Franz-Josef Dany

Joachim Wortmann

Gunther Braun

Hartfrid Vollmer

Rudolf Kern

Flame-retardant PVC-plasticizers of the general formula (I) ##STR1## in which R stands for an alkylene radical or a halogen-substituted alkylene radical having from 2 to 6 carbon atoms, a --CH.sub.2 CH.sub.2 --O--CH.sub.2 CH.sub.2 -- radical, a phenylene or an alkyl or halogenoalkyl-substituted diphenylenemethane radical and R.sub.1 stands for a branched or unbranched alkyl radical having from 6 to 18 carbon atoms.

Flame-retardant plasticizers for polyvinyl chloride

Halogen-containing phosphoric acid polyesters of the general formula (I) ##STR1## IN WHICH R stands for an alkylene radical or a halogen-substituted alkylene radical having from 2 to 6 carbon atoms, a --CH.sub.2 CH.sub.2 --O--CH.sub.2 CH.sub.2 -- radical, a phenylene or an alkyl or halogenoalkyl-substituted diphenylenemethane radical, and R.sub.1 stands for a branched or unbranched alkyl radical having from 6 to 18 carbon atoms.

Halogen-containing phosphoric acid polyesters

Flameproof moulding compositions, which are based on polyolefins and made from a pulverulent blend comprising a polyolefin as its essential ingredient and a plurality of flame-retardant ingredients. The flame-retardant ingredients comprise red phosphorus and at least one organic nitrogen compound which carbonizes after inflammation. The moulding compositions contain the flame-retardant ingredients in a total proportion of at most about 30 weight %. Red phosphorus and organic nitrogen compound are used in a quantitative ratio between 99:1 and 1:99.

Flameproof moulding compositions based on polyolefins

Improved flameproof moulding compositions, which are based on polyolefins and made from a pulverulent blend comprising a polyolefin as its essential ingredient and a plurality of flame-retardant ingredients. The flame-retardant ingredients comprise red phosphorus and at least one organic nitrogen compound which carbonizes after inflammation. The moulding compositions contain the flame-retardant ingredients in a total proportion of at most about 30 weight %. Red phosphorus and organic nitrogen compound are used in a quantitative ratio between 99:1 and 1:99. The improved moulding compositions contain as a stabilizer

Flameproof moulding compositions, which are based on polyolefins and made from a pulverulent blend comprising a polyolefin as its essential ingredient and a plurality of flame-retardant ingredients. The flame-retardant ingredients comprise red phosphorus and at least one organic nitrogen compound which carbonizes after inflammation. The moulding compositions contain the flame-retardant ingredients in a total proportion of at most about 30 weight %. Red phosphorus and organic nitrogen compound are used in a quantitative ratio between 99:1 and 1.99.

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Hurth-Burbach, Germany

Peter Munch