Flame and stress crack resistant polycarbonate molding compositions

US6569930B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Thomas Eckel · Dormagen, DE
• Dieter Wittmann · Leverkusen, DE
• Michael Zobel · Bridgwater, GB
• Bernd Keller · Lompoc, US
• Heinrich Alberts

Key dates

• Filing date: Feb 4, 2000
• Grant date: May 27, 2003
• Expiry date: Feb 4, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L55/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A flame resistant thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate, graft polymer, a specifically structured phosphorous compound, fluorinated polyolefin and inorganic compound with an average particle size no greater that 200 nm and an optional vinyl(co)polymer. The inventive composition is characterized in its improved stress cracking resistance and mechanical properties.