Tosoh Corporation

Tosch Corporation

Kenji Koyama

Yasumi Tanaka

Kimitaka Kuma

Takumi Kagawa

Keiji Itabashi

Fumio Okisaki

Nobuhiro Fujita

Fumio Okizaki

Mikio Goto

A flame retardant comprising (A) ethylenediamine-containing zinc phosphate and (B) a metal compound.

Flame retardant and flame retardant resin composition containing it

Fire retardant tablet is provided which is produced by tableting a fire retardant mixture containing heat-expandable graphite (A), and a water-soluble fire retardant synergist (B) or one containing additionally water-insoluble fire-retardant synergist (C). A method for fire retardation, a fire-retardant polymer composition, and a molded article of a fire-retardant resin by use of the fire retardant tablet are also provided. In the production of a fire retarding polymer composition containing heat-expandable graphite, the crushing of the heat-expandable graphite under melt-shearing is minimized.

Fire-retardant tablet, and fire-retarding method, fire-retardant polymer

The subject of the invention is to provide a new high-performance flame retardant having excellent flame resistant effect and smoke-suppressing effect and generating no hazardous gas, and a new flame retardant resin-composition used it. As a means for solution, a flame retardant comprising ethylenediamine-containing zinc phosphate and other phosphorus-containing compound is formulated in amounts of 10 to 200 parts by weight to 100 parts by weight of resin.

Flame retardant and flame retardant resin composition formulated with

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Shinnanyo, Japan

Kenji Koyama