TRANSPARENT THERMOPLASTIC RESIN COMPOSITION, MOLDED ARTICLE OBTAINED THEREFROM, AND METHOD OF PRODUCING TRANSPARENT THERMOPLASTIC RESIN COMPOSITION

An object of the present invention is to provide a transparent thermoplastic resin composition which has both an excellent impact resistance and fluidity while maintaining a high degree of transparency, and a molded article thereof. The gist of the present invention for achieving the above-mentioned...

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Hauptverfasser: TAMAI, Akiyoshi, SHIBATA, Takuya, BIN AFENDI, Fahzimran Afinor
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:An object of the present invention is to provide a transparent thermoplastic resin composition which has both an excellent impact resistance and fluidity while maintaining a high degree of transparency, and a molded article thereof. The gist of the present invention for achieving the above-mentioned object is to provide a transparent thermoplastic resin composition including: a graft copolymer (A) obtained by graft-copolymerizing a monomer mixture (a) that contains at least an aromatic vinyl monomer (a1) and a (meth)acrylic acid ester monomer (a2), in the presence of a rubbery polymer (r); a vinyl copolymer (B) obtained by copolymerizing a monomer mixture (b) that contains at least an aromatic vinyl monomer (b1), a (meth)acrylic acid ester monomer (b2) and a vinyl cyanide monomer (b3); the following ester compound (C); and the following ester compound (D); wherein the ester compound (C) is a hydrogenated product of a triglyceride of an acid(s) selected from the group consisting of palmitic acid, stearic acid, oleic acid, linoleic acid, ricinoleic acid and dihydroxystearic acid, and 85% by mass or more of the acid(s) constituting the triglyceride is a hydrogenated product of ricinoleic acid; and wherein the ester compound (D) is an ester of an acid(s) selected from the group consisting of palmitic acid, stearic acid, oleic acid, linoleic acid, ricinoleic acid and dihydroxystearic acid, with a polyhydric alcohol (with the proviso that the ester contains at least one ester bond with an unsaturated carboxylic acid), and 85% by mass or more of said acid(s) constituting the ester is ricinoleic acid. Un objet de la présente invention est de fournir une composition de résine thermoplastique transparente qui présente à la fois une excellente résistance aux chocs et une excellente fluidité tout en maintenant un degré élevé de transparence, et un article moulé de celle-ci. La présente invention vise à fournir une composition de résine thermoplastique transparente comprenant : un copolymère greffé (A) obtenu par copolymérisation par greffage d'un mélange de monomères (a) qui contient au moins un monomère de vinyle aromatique (a1) et un monomère d'ester d'acide (méth) acrylique (a2), en présence d'un polymère caoutchouteux (r); un copolymère de vinyle (B) obtenu par copolymérisation d'un mélange de monomères (b) qui contient au moins un monomère de vinyle aromatique (b1), un monomère d'ester d'acide (méth) acrylique (b2) et un monomère de cyanure de vinyle (b3) ; le co