Ricoh Company, Ltd.

Tadakatsu Harada

Yasushi Akiba

Yasuo Yamanaka

Hidekazu Yaginuma

Kenji Tajima

Yoshiyuki Nishio

Yasuyuki Matsushita

Kazuhiko Fukushima

Dan Aoki

Masanobu Munekata

Yasuharu Satoh

Tokuo Matsushima

Hideki Katoh

A flame retardant resin composition including: a thermoplastic resin; and a flame retardant, wherein the flame retardant includes a phosphorylated lignin derivative, and wherein the phosphorylated lignin derivative is produced by adding phosphoric acid to a lignin derivative obtained by subjecting a naturally occurring lignin to a predetermined treatment.

Flame retardant resin composition and molded product

A disclosed fire retardant resin composition includes a thermoplastic resin and a fire retardant. The fire retardant is formed of phosphorated polysaccharide that is formed by attaching thiophosphoric acid ester or phosphoric acid ester to a side chain of natural polysaccharide.

Fire retardant resin composition

Disclosed is a copolymer resin composition including a lactic acid copolymer, the lactic acid copolymer containing monomer units represented by the following chemical formulas [1], [2], and [3], wherein a content of a monomer unit represented by the chemical formula [3] is 50 mol % or more and 95 mol % or less, a weight-average molecular weight of the lactic acid copolymer is 20,000 or more and 1,000,000 or less, and a deflection temperature of the lactic acid copolymer under load is 65&#xb0; C. or higher and 100&#xb0; C. or lower at a bending stress of 1.80 MPa.

Copolymer resin composition, molded product, and method of manufacturing a copolymer resin composition

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Kanagawa, Japan

Tadakatsu Harada