Thermoplastic molding compositions on the basis of polyoxymethylenes

US4070415A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gunter Sextro · Wiesbaden, DE
• Karlheinz Burg
• Rudolf Kern
• Heinz Schmidt · Stuttgart, DE
• Ernst Wolters

Key dates

• Filing date: Jan 13, 1972
• Grant date: Jan 24, 1978
• Expiry date: Jan 13, 1992

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L59/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides thermoplastic molding compositions having improved properties. The compositions are composed of a mixture of from 99.999 to 99.9 wt.% of a linear polyoxymethylene and from 0.001 to 0.1 wt.% of a branched or cross-linked copolymer of trioxan with a multifunctionally reacting compound and optionally a monofunctionally reacting compound, or with a monofunctionally reacting compound and a branched or cross-linked polyether, or of a subsequently branched or cross-linked linear polyoxymethylene having functional groups in lateral or chain position.