Polyoxymethylene with improved resistance to zinc and/or copper ions, process for the production thereof and use thereof

US5641830A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Edwin Nun · Billerbeck, DE
• Stephanie Schauhoff · Frankfurt, DE
• Klaus Dorn · Kettwig, DE

Key dates

• Filing date: Sep 21, 1995
• Grant date: Jun 24, 1997
• Expiry date: Sep 21, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polyoxymethylene composition, polyoxymethylene parts, and a process for the production of polyoxymethylene. The polyoxymethylene composition contains one or more polyoxymethylene species, an aqueous anionic polyurethane dispersion, phenolic antioxidant(s), and optionally, colorant, filler, and conventional additives. The composition exhibits improved resistance to non-ferrous metal corrosion.