Polycarbonate compositions and articles formed therefrom

US7632881B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Jing Chen · Tangxia, CN
• Hua Jiao · Shijiazhuang, CN
• Yegang Lin · Pudong New District, CN
• Jingwu Yang · Shanghai, CN
• Xinmin Yang · Evanston, US

Key dates

• Filing date: Jun 22, 2006
• Grant date: Dec 15, 2009
• Expiry date: Jan 23, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polycarbonate composition is disclosed having zero or minimum halogen content, while also exhibiting improved fire-retardance and/or drip-resistant characteristics. The composition comprises an effective amount of a polycarbonate, an anti-dripping agent, an aromatic sulfone sulfonate, an aromatic sulfonate, a synergistic combination of an elastomer-modified graft copolymer and a polysiloxane-polycarbonate copolymer, and an optional siloxane oligomer. The polycarbonate composition is useful for manufacture of electronic and mechanical articles, among others.