Impact-resistant thermoplastic molding materials

US5834542A · kind A · utility

Assignee

• BASF SE

Inventors

• Sabine Kielhorn-Bayer · Frankenthal (Pfalz), DE
• Ulrich Eichenauer · Frankfurt, DE
• Friedhelm Lehrich · Bohmte, DE

Key dates

• Filing date: May 30, 1997
• Grant date: Nov 10, 1998
• Expiry date: May 30, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L79/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Impact-resistant thermoplastic molding materials contain PA1 A) from 10 to 99.5% by weight of a thermoplastic polymer selected from the group consisting of the polyoxymethylenes, polyolefins, polyesters, polycarbonates, polystyrene, ABS, ASA, SAN, polyamides or poly(meth)acrylates or mixtures thereof, PA1 B) from 0.5 to 80% by weight of a thermoplastic polyurethane, PA1 C) from 0 to 50% by weight of a fibrous or particulate filler and PA1 D) from 0 to 30% by weight of conventional additives and processing assistants, the thermoplastic polyurethane B) containing from 0.05 to 10% by weight, based on B), of a carbodiimide: ##STR1## where R is identical or different and is selected from the group consisting of --NCO--, --NHCONHR.sup.1 --, --NHCONR.sup.1 R.sup.2 -- and --NHCOOR.sup.3 -- radicals, where PA1 R.sup.1 and R.sup.2 are identical or different and are an alkyl, cycloalkyl or aralkyl radical and PA1 R.sup.3 is R.sup.1 or an alkoxypolyoxyalkylene radical and PA1 n is an integer from 0 to 10.