Solutions for stabilizing thermoplastic polycarbonates

US4367303A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Erich Eimers · Krefeld, DE
• Rolf Dhein · Krefeld, DE
• Wolfgang Cohnen · Leverkusen, DE
• Engelbert Kuhle · Wittlich, DE
• Gerhard Heywang · Bensberg, DE

Key dates

• Filing date: Jun 25, 1981
• Grant date: Jan 4, 1983
• Expiry date: Jun 25, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5435
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Certain solutions of phosphines in oxetane compounds impart oxidative stability to aromatic thermoplastic polycarbonates in which such solutions are admixed.