Flame-proofed polyester molding materials

US6716899B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Martin Klatt · Bad Dürkheim, DE
• Michael Nam · San Jose, US
• Herbert Fisch · Monsheim, DE

Key dates

• Filing date: Nov 2, 2000
• Grant date: Apr 6, 2004
• Expiry date: Nov 2, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic molding compositions compriseA) from 5 to 96% by weight of a polyester,B) from 1 to 30% by weight of a phosphinate of formula I and/or of a diphosphinate of formula II and/or polymers of these  where:R1 and R2 are linear or branched C1-C6-alkyl, phenyl or hydrogen,R3 is linear or branched C1-C10-alkylene, arylene, alkylarylene or arylalkylene,M is an alkaline-earth or alkali metal, Zn, Al, Fe or B,m is an integer from 1 to 3,n is an integer from 1 to 3,is 1 or 2 andC) from 1 to 30% by weight of at least one organic phosphorus-containing flame retardant,D) from 0 to 5% by weight of at least one ester or amide of saturated or unsaturated aliphatic carboxylic acids having from 10 to 40 carbon atoms with saturated aliphatic alcohols or amines having from 2 to 40 carbon atoms, andE) from 0 to 60% by weight of other additives, where the total of the percentages by weight of components A) to E) is 100%.