Polymer blend having good low-temperature impact strength

US6579581B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Wilfried Bartz · Marl, DE
• Franz-Erich Baumann · Schneverdingen, DE
• Guido Schmitz · Schneverdingen, DE
• Georg Oenbrink · Schneverdingen, DE
• Harald Haeger · Thedinghausen, DE

Key dates

• Filing date: Jun 22, 2001
• Grant date: Jun 17, 2003
• Expiry date: Jun 22, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31739
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A molding which comprises the following components:(I) from 60 to 96.5 parts by weight of polyamide;(II) from 3 to 39.5 parts by weight of an impact-modifying component which contains anhydride groups,(III) from 0.5 to 20 parts by weight of a copolymer which contains units of the monomers:(a) &agr;-olefin,(b) acrylic compound, and also(c) olefinically unsaturated epoxide, carboxylic anhydride, carboximide, oxazoline or oxazinone,where the total of the parts by weight of components I, II, and III is 100, and where moreover the polyamide has an excess of amino end groups, has improved low-temperature impact strength, even if the molding composition also comprises a plasticizer.