Basf Aktiengesellschaft

Wilhelm Schuette

Manfred Walter

Heiner Goerrissen

Gerhard Heinz

Albrecht Hilt

Graham E McKee

Klaus Boehlke

Georg N Simon

Dietrich Saenger

Polyoxymethylene molding materials having improved heat stability and consisting of

Polyoxymethylene molding materials having improved thermal stability,

Molding materials of polyoxymethylene homopolymers and/or copolymers and

Thermoplastic polyoxymethylene molding materials having high abrasion resistance contain

Thermoplastic polyoxymethylene molding materials having high abrasion

Impact-resistant polyoxymethylene molding materials containing

Impact-resistant polyoxymethylene molding materials and their preparation

Polyacetal molding materials which contain, as a stabilizer, from 0.1 to 10% by weight of a melamine resin, the latter being a melamine-formaldehyde condensate, having a mean degree of polymerization of from 1.2 to 6.0 and a melamine:formaldehyde ratio of from 1:2 to 1:5.5, which has been partially etherified with a C.sub.1 -C.sub.4 -alkanol so that the ratio melamine:ether radicals is from 1:1.5 to 1:5.0 and the ratio melamine:free methylol groups is from 1:0.5 to 1:3. The molding materials can be converted to moldings which can be used industrially at elevated ambient temperatures.

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Speyer, Germany

Wilhelm Schuette