Copolyester carbonates and the admixture thereof with known polycarbonates to give thermoplastic moulding compositions

US4400491A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Peter Kafer · Krefeld, DE
• Leo Morbitzer
• Werner Nouvertne · Krefeld, DE
• Dieter Neuray · Krefeld, DE

Key dates

• Filing date: May 17, 1982
• Grant date: Aug 23, 1983
• Expiry date: May 17, 2002

Classification

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

Abstract

The new thermoplastic copolyester carbonates which are based on polybutylene glycols and hexahydrophthalic acid or trimethyladipic acid, as well as admixtures of copolyester carbonates of this type with known polycarbonates are suitable for thermoplastic moulding compositions, particularly where good stability to solvents, such as petrol, is required.