Moulding substances based on poly-C2-C6 -alkylene terephthalates

US6656988B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Michael Fischer · Ludwigshafen, DE
• Herbert Fisch · Monsheim, DE
• Michael Nam · San Jose, US

Key dates

• Filing date: May 31, 2001
• Grant date: Dec 2, 2003
• Expiry date: May 31, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/103
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Glycerol fatty acid esters of C12-C24 fatty acids which may have one hydroxyl group and from 1 to 3 carbon-carbon double bonds are used as an additive for molding compositions based on poly-C2-C6-alkylene terephthalates.The thermoplastic molding composition comprises, based on the total of components A and B and, if present, C to E, which together give 100 % by weight,a) as component A, from 40 to 99.99% by weight of at least one polyester based on poly-C2-C6-alkylene terephthalates,b) as component B, from 0.01 to 3% by weight of glycerol fatty acid esters of C12-C24 fatty acids which may have a hydroxyl group and from 1 to 3 carbon-carbon double bonds,c) as component C, from 0 to 49.99% by weight of blend polymers miscible with component A or dispersible therein,d) as component D, from 0 to 50% by weight of fillers, ande) as component E, from 0 to 10% by weight of other usual additives.