BLACK RESIN COMPOSITION AND RESIN MOLDED PRODUCT

PROBLEM TO BE SOLVED: To provide a black resin composition and a black molded article having excellent impact resistance, fluidity, surface hardness and heat resistance and having a jet-black appearance with a texture and transparency like a high-quality lacquer ware, prepared by adding a colorant t...

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Bibliographische Detailangaben
Hauptverfasser: TSUNEMORI HIDEYUKI, IBUSUKI SHUN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a black resin composition and a black molded article having excellent impact resistance, fluidity, surface hardness and heat resistance and having a jet-black appearance with a texture and transparency like a high-quality lacquer ware, prepared by adding a colorant to a modified polycarbonate resin derived from a specified bisphenol structural unit.SOLUTION: The black resin composition comprises: a resin component (A component) comprising 95 to 60 parts by weight of a copolymerized polycarbonate resin (A-1 component), which contains a 2,2-bis(4-hydroxy-3-methylphenyl)propane component (component a-1) and a 2,2-bis(4-hydroxyphenyl)propane component (component a-2) as an aromatic dihydroxy component, wherein the proportion of the component a-1 is 40 to 90 mol% with respect to 100 mol of the whole aromatic dihydroxy compound, and which has a viscosity average molecular weight of 1.8×10to 3.2×10, and 5 to 40 parts by weight of a styrene resin (A-2); and with respect to 100 parts by weight of the above component A, 0 to 10 parts by weight of an impact modifier (B component) and 0.1 to 5 parts by weight of carbon black (C component).