Impact-resistant thermoplastic polyester compositions of low melt viscosity, process for their preparation, and their use for the production of mouldings

US4749755A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Josef Buysch · Krefeld, DE
• Norbert Schon · Krefeld, DE
• Wolfgang Richter · Haar, DE
• Rudolf Binsack · Krefeld, DE
• Karl-Heinz Köhler · Aachen, DE
• Dieter Rempel · Leverkusen, DE

Key dates

• Filing date: May 30, 1986
• Grant date: Jun 7, 1988
• Expiry date: May 30, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyalkylene terephthalates which contain small quantities of aliphatic polycarbonate show improved fracture behavior, without a significant adverse effect on the strength and the flowability in the melt. Moreover, the compositions show improved behavior in hot-air ageing.