Impact resistant thermoplastic molding materials comprised of syndiotactic polystyrene, glass fibers and thermoplastic elastomer (tpe) impact modifiers

US6762218B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Michael Geprags · Schwarzheide, DE
• Konrad Knoll · Mannheim, DE

Key dates

• Filing date: Oct 3, 2002
• Grant date: Jul 13, 2004
• Expiry date: Oct 9, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L71/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic molding compositions comprising, as substantive constituents,A) from 5 to 96% by weight of a vinylaromatic polymer with a syndiotactic structure,B) from 2 to 50% by weight of an inorganic filler,C) from 1 to 15% by weight of a thermoplastic elastomer based on copolymers made from vinylaromatic monomers, dienes and, where appropriate, 1,1-diphenylethylene,D) from 1 to 10% by weight of a compatibilizer, and, where appropriate,E) from 1 to 15% by weight of an elastomeric particulate styrene-diene block copolymer whose diene content may have been completely or to some extent hydrogenated, and, where appropriate,F) additives, where the total of the percentages by weight of A) to F) is 100.