Polycarbonate molding compositions having improved flame retardance

US4552911A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Cohnen · Leverkusen, DE
• Klaus Kircher · Leverkusen, DE
• Peter Muller · Leverkusen, DE
• Sivaram Krishnan · Pittsburgh, US
• Dieter Neuray · Krefeld, DE

Key dates

• Filing date: Jan 28, 1983
• Grant date: Nov 12, 1985
• Expiry date: Jan 28, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/42
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to polycarbonate molding compositions containing additives of alkali or alkaline earth metal salts, tetrahalogenophthalimides and optional glass fibers, characterized in that they contain additive amounts of bromine.