Polycarbonate from special dihydroxydiphenyl bicycloalkane

US5212280A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Volker Serini · Krefeld, DE
• Uwe Westeppe · Mettmann, DE
• Gerd Fengler · Krefeld, DE
• Manfred Hajek · Leverkusen, DE
• Carl Casser · Neunburg vorm Wald, DE
• Helmut Waldmann · Leverkusen, DE

Key dates

• Filing date: Sep 30, 1991
• Grant date: May 18, 1993
• Expiry date: Sep 30, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2602/28
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable properties.