Flame retardant thermoplastic polycarbonate moulding compositions

US5621029A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Thomas Eckel · Dormagen, DE
• Karl Fuhr · Krefeld, DE
• Dieter Wittmann · Leverkusen, DE
• Heinrich Alberts

Key dates

• Filing date: Nov 24, 1995
• Grant date: Apr 15, 1997
• Expiry date: Nov 24, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L85/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to halogen-free flame retardant thermoplastic moulding compositions prepared from polycarbonate and graft polymer, which may optionally contain thermoplastic copolymer and/or polyalkylene terephthalate. The flame retardant used is a synergistic combination of silicone resin and polyphenylene oxide.