Hoechst Aktiengesellschaft

Otto Hermann-Schonherr

Michael Haubs

Arnold Schneller

Michael-Joachim Brekner

Freddy Helmer-Metzmann

Harald Cherdron

Uwe Kampschulte

Hansotto Drotloff

For optical applications, transparent amorphous thermo-plastics, such as polyaryl ether ketones, are of considerable interest. However, polyaryl ether ketones have inadequate UV stability and weathering resistance while amorphous polyaryl esters do not have these negative properties. The properties can be improved by means of polymer alloys, giving weathering-resistant materials from homogeneously mixed polymers which comprise at least one amorphous polyaryl ether ketone and at least one amorphous polyaryl ester.

Weathering-resistant polymer alloys

Homogeneous polymer alloys based on sulfonated, aromatic polyether ketones Homogeneous polymer alloys comprising sulfonated, aromatic polyether ketones and at least one polyamide as the main constituents, wherein the polyamide is a completely aromatic polyamide.

Homogeneous polymer alloys based on sulfonated aromatic polyether ketones

Polymer alloys based on polybenzimidazoles are of great interest in industry due to their extraordinary thermal and mechanical properties. Alloys composed of a homo- or copolybenzimidazole and poly-N-vinylpyrrolidone are homogeneously mixed and have only one glass transition temperature.

Alloys having one glass transition temperature

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Bensheim, Germany

Otto Hermann-Schonherr