Flame resistant polycarbonate/ABS moulding compounds resistant to stress cracking

US5672645A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Thomas Eckel · Dormagen, DE
• Dieter Wittmann · Leverkusen, DE
• Manfred Oller · Krefeld, DE
• Heinrich Alberts

Key dates

• Filing date: Dec 12, 1996
• Grant date: Sep 30, 1997
• Expiry date: Dec 12, 2016

Classification

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

Abstract

Flame resistant, thermoplastic molding compounds containing PA1 A) 40 to 98 parts by weight of an aromatic polycarbonate, PA1 B) 3 to 50 parts by weight of a vinyl copolymer, PA1 C) 0.5 to 40 parts by weight of a graft polymer, PA1 D) 0.5 to 20 parts by weight of a mixture of PA2 D.1) 10 to 90 wt. %, related to D) , of a monophosphorus compound of the formula (I) ##STR1## D.2) 90 to 10 wt. %, related to D), of an oligomeric phosphorus compound of the formula (II) ##STR2## and E) 0.05 to 5 parts by weight of a fluorinated polyolefin with an average particle diameter of 0.05 to 1000 .mu.m, a density of 1.2 to 2.3 g/cm.sup.3 and a fluorine content of 65 to 76 wt. %.