Flame-retardant polycarbonate resin composition and molded article formed by molding same

A polycarbonate resin composition combining recycled resin with inorganic fillers and a phosphate-based stabilizer addresses the issue of reduced flame retardancy, achieving improved rigidity, thermal stability, and flame retardancy for diverse applications.

WO2026110576A1PCT designated stage Publication Date: 2026-05-28TEIJIN LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
TEIJIN LTD
Filing Date
2025-10-29
Publication Date
2026-05-28

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Abstract

The present invention provides a resin composition containing a recycled polycarbonate resin that exhibits excellent rigidity, thermal stability, and flame retardancy, and a molded article formed of the same. A resin composition according to the present invention contains: (A) 100 parts by weight of a polycarbonate resin (component A) composed of 1-99 parts by weight of a recycled polycarbonate resin (A-1) and 99-1 parts by weight of a non-recycled polycarbonate resin (A-2); (B) 5-100 parts by weight of at least one inorganic filler (component B) selected from the group consisting of glass fibers (component B-1), carbon fibers (component B-2), and plate-shaped glass fillers (component B-2); (C) 0.01-5 parts by weight of a flame retardant (component C); (D) 0.1-10 parts by weight of a mineral-based inorganic filler (component D); and (E) 0.01-1 parts by weight of at least one phosphate-based stabilizer (component E) selected from the group consisting of phosphonic acid esters (component E-1), acidic phosphoric acid esters (component E-2), and metal salts of acidic phosphoric acid esters (component E-3).
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Citation Information

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