Aromatic polycarbonate containing a special fluorine-containing bisphenol component

US5155205A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Ebert · Krefeld, DE
• Michael Negele · Cologne, DE
• Gerhard Fennhoff · Willich, DE

Key dates

• Filing date: Jan 15, 1991
• Grant date: Oct 13, 1992
• Expiry date: Jan 15, 2011

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/045
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

New aromatic polycarbonates contain, in their bisphenol moiety, at least in part bisphenols of the type 1,1-bishydroxyphenylhexafluorodichlorocyclopentane, 1,1-bishydroxyphenylheptafluoromonochlorocyclopentane or 1,1-bishydroxyphenyloctafluorocyclopentane.