Adeka Corporation

Yuri Okamoto

Takahiro Horikoshi

Hiroaki Mizushima

Michio Nakamura

Yutaka Yonezawa

Tetsuo Kamimoto

Kohei Omori

Genta Harada

Provided are a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof. A resin additive composition is composed of a phosphoric acid ester compound (A) represented by the following general formula (1): (in the formula (1), Rto Reach independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 9 carbon atoms, and Rrepresents an alkylidene group having 1 to 4 carbon atoms) and a fatty acid sodium salt (B) represented by the following general formula (2): (in the formula (2), Rrepresents a group introduced from an aliphatic organic acid having 7 to 30 carbon atoms), and the mass ratio of (B)/(A) is 0.55 to 2.0.

Resin additive composition, thermoplastic resin composition, and molded article thereof

Provided are a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof. A resin additive composition is composed of a phosphoric acid ester compound (A) represented by the following general formula (1): (in the formula (1), Rto Reach independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 9 carbon atoms, and Rrepresents an alkylidene group having 1 to 4 carbon atoms) and a fatty acid sodium salt (B) represented by the following general formula (2): (in the formula (2), Rrepresents a group introduced From an aliphatic organic acid having 7 to 30 carbon atoms), and the mass ratio of (B)/(A) is 0.55 to 2.0.

A process for producing a pyrophosphate, particularly melamine pyrophosphate useful as a flame retardant, efficiently in high yield is provided. The process includes firing an orthophosphate, preferably melamine orthophosphate, in the presence of a silicone oil, preferably methylphenyl silicone oil preferably at 120&#xb0; to 350&#xb0; C. Examples of useful firing equipment include a hot air dryer, a kneader, a Henschel mixture, a fluidized bed dryer, a rotary kiln, a paddle dryer, an extruder, a vibrating dryer, a far-infrared conveyor furnace, and a microwave firing furnace.

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Saitama, Japan

Yuri Okamoto