Basf Aktiengesellschaft

Doris Zeltner

Norbert Niessner

Friedrich Seitz

Klaus Muehlbach

Karl Ruppmich

Rainer Neumann

Brigitte Gareiss

Bernhard Czauderna

Gerhard Lindenschmidt

Petra Baierweck

Achim Grefenstein

Stefan Seelert

Karlheinz Ulmerich

Karl Hennig

Heiner Goerrissen

Carola Hedtmann-Rein

Michael Gall

Carsten Netze

Heike Feldman

Peter Steieri

Ranier Neumann

Process for producing laminated sheets or films and moldings having UV-stability and thermal aging resistance

Halogen-free flameproofed thermoplastic molding materials based on polyphenylene ethers and polystyrene containing, as essential components, A) from 5 to 92% by weight of one or more polyphenylene ethers, B) from 5 to 92% by weight of a vinylaromatic polymer and C) from 3 to 25% by weight of a flameproofing agent based on C1) from 20 to 100% by weight (based on the total amount of C) of a polymeric phosphorus compound which is obtained by polymerizing or copolymerizing one or more compounds of the following structure: ##STR1## where ##STR2## R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.10 and R.sup.11 are each hydrogen, alkyl, cycloalkyl, aralkyl or aryl,

Halogen-free flameproofed thermoplastic molding materials based on

A flameproofed black thermoplastic molding material containing

Flameproofed black polyamide molding materials

A molding composition containing, based on the total weight of the composition:

Flameproofed chlorine-and bromine-free molding composition

Polyphenylene ethers are prepared from monohydric phenols by oxidative coupling with oxygen-containing gases in the presence of an oxidation catalyst in an organic solvent by carrying out the polycondensation in the presence of a defoamer.

Preparation of polyphenylene ethers in the presence of defoamer

A flame retardant molding composition contains a halogen-free polycarbonate at least one halogen-free graft copolymer assembled from copolymerized units of an elastomer and certain ethylenically unsaturated monomers which include 1-50% by weight of an organic phosphorus compound of the formula (I) ##STR1## a halogen-free thermoplastic copolymer comprising styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and (meth)acrylonitrile and/or maleic anhydride, as well as 1-46% by weight of a halogen-free phosphorus compound of the formula (I): Optionally a monophosphate additive and up to 5% by weight of a polytetrafluoroethylene with a median particle size of from 0.05 to 20 .mu.m may be added.

Flameproofed molding composition

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Doris Zeltner