Polycarbonate composition, molded article prepared from same, and use thereof

US11643549B2 · kind B2 · utility

Assignee

• Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

• Shoujun Li · Shanghai, CN
• Zhenyu Huang · Shanghai, CN
• Xiaoxiang Wang · Shanghai, CN

Key dates

• Filing date: Apr 9, 2018
• Grant date: May 9, 2023
• Expiry date: May 18, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/03
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polycarbonate composition comprising: (A) a polycarbonate; (B) an acrylonitrile-styrene copolymer in an amount of 0 to 15 wt % by weight, based on 100 wt % by weight of the total amount of the components (A) to (D); (C) inorganic filler in an amount of 19 to 33% by weight, wherein talc is contained in an amount of 13 to 33% by weight, based on 100% by weight of the total amount of the components (A) to (D); (D) an organic phosphorus compound-based flame retardant, the component (D) being present in an amount of >2.5 to <7.5% by weight, based on 100% by weight of the total amount of the components (A) to (D); and (E) a fluorine-containing anti-dripping agent; wherein the talc has a specific surface area of 4 to 18 m2/g, as measured by B.E.T. method in accordance with DIN ISO 9277:2014-01; the talc has a median particle diameter D50 of 3 to 18 μm, as measured by laser diffraction method. A molded article prepared from the polycarbonate composition, and the use of the polycarbonate composition in the manufacture of chassis or frame in the parts of electrical, electronic and information technology applications.