Flameproofed theroplastic molding materials based on polyamides

US5412017A · kind A · utility

Assignee

• BASF SE

Inventors

• Brigitte Gareiss · Grünstadt, DE
• Petra Baierweck · Schifferstadt, DE
• Christoph Plachetta · Schifferstadt, DE
• Karlheinz Ulmerich · Lambsheim, DE

Key dates

• Filing date: Mar 18, 1994
• Grant date: May 2, 1995
• Expiry date: Mar 18, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Flameproofed thermoplastic molding materials are obtainable by mixing PA1 A) from 20 to 70% by weight of a magnesium hydroxide and PA1 B) from 0 to 70% by weight of conventional additives and processing assistants into a melt of PA1 C) from 10 to 80% by weight of a polyamide prepolymer having a viscosity number of from 40 to 100 ml/g and then carrying out solid-phase postcondensation.