Flame-proof thermoplastic moulding materials

US6306941A · kind A · utility

Assignee

• BASF SE

Inventors

• Martin Klatt · Bad Dürkheim, DE
• Thomas Heitz · Ludwigshafen am Rhein, DE
• Brigitte Gareiss · Grünstadt, DE

Key dates

• Filing date: Mar 10, 1999
• Grant date: Oct 23, 2001
• Expiry date: Mar 10, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic molding compositions comprise PA1 A) from 5 to 97% by weight of a thermoplastic polymer selected from the group consisting of polyamides, polyesters, polyphenylene ethers, vinylaromatic polymers and mixtures of these, PA1 B) from 1 to 30% by weight of an alkylphosphonic acid compound of the formula I ##STR1## PA1 where R is alkyl having from 1 to 4 carbon atoms and x is 0 or 1, PA1 C) from 1 to 30% by weight of a synergist for B) selected from the group consisting of inorganic calcium and magnesium compounds and mixtures of these, PA1 D) from 1 to 50% by weight of a fibrous filler and PA1 E) from 0 to 40% by weight of other additives and processing aids, where the sum of the percentages by weight of components A) to E) is always 100%.