Toray Industries, Inc.

Masanori Kobayashi

Daisuke Sato

Takayuki Hase

Takashi Ueda

Katsuya Ogawa

Taro Yamashita

Toshio Ishikawa

Yoshiyasu Naito

Shinya Kuroda

Taeko Nito

A thermoplastic resin composition includes: a polycarbonate resin (I); a specific graft copolymer (II); a vinyl copolymer (III); an inorganic filler (IV); and a phosphate ester compound (V). The vinyl-based copolymer (III) has a weight average molecular weight of 110,000 or less. A ratio of a melt flow rate of the vinyl-based copolymer (III) to a melt flow rate of the polycarbonate resin (I) is 7 or more and 12 or less. A blending amount of the phosphoric acid ester-based compound (V) is 1 to 10 parts by weight with respect to 100 parts by weight of a total amount of (I) to (IV).

Thermoplastic resin composition and molded article thereof

A thermoplastic resin composition exhibiting good balance of mechanical properties, heat resistance, flowability, and size stability as well as excellent stability in retention in the molding, appearance of the molded article, and coating properties, and also, a molded article thereof are provided. The thermoplastic resin composition is a blend of a polycarbonate resin (I), a graft copolymer (II) which comprises a graft copolymer (II-1) prepared by graft polymerization of a monomer mixture containing an aromatic vinyl monomer and a vinyl cyanide monomer in the presence of a diene rubbery polymer or a graft copolymer (II-2) prepared by graft polymerization of a monomer mixture containing an aromatic vinyl monomer and a vinyl cyanide monomer in the presence of an acryl rubbery polymer, a vinyl copolymer (III) prepared by copolymerizing an aromatic vinyl monomer and a vinyl cyanide monomer, a crystalline resin (IV), and a plate-shaped inorganic filler (V), and when total amount of (I)+(II)+(III)+(IV)+(V) is 100% by weight, (I) is 50 to 70% by weight, (II) is 3 to 15% by weight, (III) is 10 to 25% by weight, (IV) is 1 to 9% by weight, and (V) is 10 to 20% by weight, and content ratio of (IV) to 100% by weight of (V) is at least 10% by weight and less than 50% by weight.

[Problem] To provide a material for fused-deposition-type three-dimensional modeling whereby a warp-free modeled object is obtained without devising a modeling shape and without installing a special apparatus as a 3D printer device, and whereby a modeled article having flexibility as well as excellent surface polishing properties is obtained. [Solution] A material for fused-deposition-type three-dimensional modeling, obtained by blending 10-900 parts by weight of a styrene-based resin (B1) obtained by copolymerization of an aromatic vinyl-monomer (b1) and a cyanated vinyl-monomer (b2), and/or 5-400 parts by weight of a thermoplastic resin (B2) having a glass transition temperature of 20&#xb0; C. or lower and/or 5-30 parts by weight of a plasticizer (B3), with respect to 100 parts by weight of a polylactic resin (A).

Material for fused deposition modeling type three-dimensional modeling, and filament for fused deposition modeling type 3D printing device

A monofilament for mowing characterized by being produced by spinning a resin composition, said resin composition comprising 70-97 parts by weight of a polylactic acid resin (A) and 30-3 parts by weight of an adipate plasticizer (B), each relative to 100 parts by weight of the sum of the polylactic acid resin (A) and the adipate plasticizer (B). Thus, the monofilament for mowing, which is biodegradable, shows an excellent mowing performance and has a high breakage resistance and high abrasion resistance, is provided.

Growing community of inventors

Ichihara, Japan

Masanori Kobayashi