Bayer Aktiengesellschaft

Rudolph Binsack

Hugo Vernaleken

Eckart Reese

Christian Lindner

Karl-Heinz Ott

Ludwig Bottenbruch

Peter Bier

Gerhard Darsow

Joachim Wank

Karl-Heinz Kohler

Dieter Rempel

Paul Schiller

Gunter B Weber

Manfred Grundmeier

Polyalkylene terephthalates which contain a fluorinated polyolefin in addition to a polymer having a glass transition temperature of less than -30.degree. C., are very tough, exhibit good stability to thermal shaping and hardness, and have a high modulus of elasticity and improved stress/strain behavior.

Thermoplastic moulding compositions based on polyalkylene terephthalate

A polycarbonate film having improved flame resistance and good stress-corrosion-cracking resistance is prepared from a solution of a mixture of a low molecular weight polycarbonate containing at least about 5% by weight halogen and a higher molecular weight polycarbonate prepared from bisphenol containing at least 90 mol percent bisphenol A. The novel film can be used to advantage for self-supporting electrical insulating films.

Polycarbonate film

Terephthalic copolyesters, the diol component of which mainly consists of ethylene glycol units, crystallize more rapidly than pure polyethylene terephthalate and can be moulded in a way comparable to polybutylene terephthalate.

Poly(ethylene/alkylene) terephthalates which crystallize rapidly

A branched, high molecular-weight polyaryl-ether sulphone which is the reaction product of approximately equimolar amounts of an aromatic dialkali metal bishydroxylate and a bis-(halogen-aryl) compound, whose aryl nuclei are linked by sulphonyl groups, and about 0.01 to about 2 mol %, based on the bishydroxylate or bis-(4-halogenaryl) compound, of an aromatic compound having at least three aromatically linked alkali metal hydroxylate substitutents and/or of a halogenaryl compound having at least three aryl-linked halogen substituents and which is capable of substitution under the reaction conditions of polyaryl-ether sulphone manufacture.

Branched aromatic polyaryl-ether sulphones

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Krefeld, Germany

Rudolph Binsack