Elastomeric thermoplastic molding materials and their preparation

US4694042A · kind A · utility

Assignee

• BASF SE

Inventors

• Graham E. McKee · Ludwigshafen, DE
• Hilmar Ohlig · Kaiserslautern, DE
• Horst Reimann · Worms, DE
• Hans-Josef Sterzel · Schifferstadt, DE

Key dates

• Filing date: Jan 31, 1985
• Grant date: Sep 15, 1987
• Expiry date: Jan 31, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L77/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Elastomeric thermoplastic molding materials contain PA0 (A) from 5 to 50 parts by volume of a partially or completely crystalline thermoplastic polymer having a melting point of above 160.degree. C., as a coherent phase, and PA0 (B) from 95 to 50 parts by volume of one or more crosslinked elastomeric polymers which are prepared by emulsion polymerization, are dispersed in the component A and have a glass transition temperature Tg of below -10.degree. C., the sum of A and B being 100 parts by volume, with the proviso that the mixture of A and B has a Vicat softening temperature, measured according to DIN 53,460, which is 5.degree.-40.degree. C. lower than that of the component A, with or without PA0 (C) effective amounts of conventional assistants.