Flame-resistant polycarbonate moulding materials which are dimensionally stable at high temperatures and have high flow line strength

US6706788B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Thomas Eckel · Dormagen, DE
• Michael Bödiger · Dormagen, DE
• Dieter Wittmann · Leverkusen, DE
• Heinrich Alberts
• Klaus Horn · Dortmund, DE

Key dates

• Filing date: Nov 17, 1999
• Grant date: Mar 16, 2004
• Expiry date: Nov 17, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L51/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Flame-resistant, thermoplastic moulding compositions containingA) 70 to 98 parts by weight of an aromatic polycarbonate,B) 0.5 to 20 parts by weight of a graft polymer,C) 0.5 to 5 parts by weight of a mixture ofC.1) 10 to 90 parts by weight, based on C, of a monophosphorus compound of formula (I) C.2) 90 to 10 wt. %, based on C, of a phosphorus compound of formula (II) D) 0.05 to 5 parts by weight of a fluorinated polyolefin with an average particle diameter of 0.05 to 1000 &mgr;m, a density of 1.2 to 2.3 g/m3 and a fluorine content of 65 to 76 wt. %.