Toray Industries, Inc.

Toray Plastics (Malaysia) Sdn. Bhd.

Nobuaki Shirakawa

Kosuke Shirotani

Akira Saito

Takashi Ueda

Takuya Shibata

Takamasa Owaki

Masafumi Koyama

Masashi Matsuda

Yoshiyasu Naito

Tadakatsu Takasaki

Akira Morito

A natural rubber-containing thermoplastic resin composition includes a graft copolymer (A) obtained by graft-polymerizing a vinyl monomer mixture (a) including at least an aromatic vinyl monomer to a rubbery polymer (R) composed of 10 to 70% by mass of a natural rubber having a weight average particle size of 0.3 to 1.2 &#x3bc;m and 30 to 90% by mass of a synthetic rubber having a weight-average particle size of 0.2 to 0.4 &#x3bc;m, wherein particles of the natural rubber include not less than 5% by mass of natural rubber articles with a size of 1.0 &#x3bc;m or larger; and particles of the rubbery polymer (R) with a size of 1.0 &#x3bc;m or larger have an internal graft ratio of 20% or higher.

Natural rubber-containing thermoplastic resin composition and molded article thereof

A flame-retardant styrene thermoplastic resin composition including 6 to 15 parts by weight of a phosphoric acid ester flame retardant (II) and 0.1 to 3 parts by weight of an aromatic carbonate oligomer (III) having a viscosity average molecular weight [Mv] of 1,000 to 10,000 with respect to 100 parts by weight of a styrene resin (I), and molded products thereof have excellent flame retardancy, mechanical properties and moldability.

Flame-retardant styrene thermoplastic resin composition and molded product thereof

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Ichihara, Japan

Nobuaki Shirakawa