Flameproofed, thermoplastic polycarbonate moulding compounds

US5658974A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

• Filing date: Oct 4, 1995
• Grant date: Aug 19, 1997
• Expiry date: Oct 4, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to halogen-free, flameproofed, thermoplastic moulding compounds made from polycarbonate and graft polymers which may optionally contain a copolymer and/or polyalkylene terephthalate, wherein a silicon resin in combination with a blend of monophosphate and oligomeric polyphosphates is used as a flameproofing agent.