Thermoplastic molding compounds containing aliphatic polycarbonates

US4908422A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Edgar Leitz · Dormagen, DE
• Herbert Eichenauer · Dormagen, DE
• Karl-Heinz Ott
• Thomas Eckel · Dormagen, DE
• Horst Peters · Leverkusen, DE
• Jochen Schoeps · Krefeld, DE

Key dates

• Filing date: Mar 6, 1989
• Grant date: Mar 13, 1990
• Expiry date: Mar 6, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L69/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to thermoplastic molding compounds containing PA1 (1.) thermoplastic aromatic polycarbonates and/or thermoplastic aromatic polyesters, PA1 (2.) graft polymers and, optionally, PA1 (2.a) thermoplastic copolymers, which are characterized in that they additionally contain aliphatic polycarbonates having weight average molecular weights Mw (as measured by ultracentrifugation or light scattering) in the range from 15,000 to 500,000.