Toray Industries, Inc.

Hiroshi Kodama

Toshikazu Aoyama

Hotuma Okasaka

Naoya Yoda

Yukinori Kimata

Toshio Muraki

Yasuo Miura

A flame retardant polybutyleneterephthalate composition having excellent flame resistance with reduced tendency to drip during combustion, is provided by adding a halogenated diphenylether and a diepoxide compound to a polyester which contains at least 80 mole percent of terephthalic acid based on the total moles of dicarboxylic acid, and at least 80 mole percent 1, 4-butanediol based on the total moles of diol. Decabromodiphenyl is an optional additive.

Flame retardant polyester composition

A glass fiber reinforced flame retarding polyester composition containing decabromodiphenyl ether and/or decabromodiphenyl together with antimony trioxide wherein the ratio by weight of bromine atom to antimony atom is within the range of 0.15 to 0.29. The composition has excellent durability for thermal degradation and improved coloring properties in shaped form.

Flame retarding polyester composition

This invention relates to a thermoplastic resin composition having reduced flammability which comprises a flammable thermoplastic resin, a flame-retarding agent composed of combined halogenated aromatic compound and an organic compound having a cyanurate or isocyanurate ring structure. The composition has well-balanced physical properties and has an especially good external appearance and elongation together with flame resistance.

Thermoplastic resin composition having reduced flammability

A novel copolyamide is obtained by copolymerizing a three-component system comprising .epsilon.-caprolactam; a salt of hexamethylenediamine and adipic acid; and a salt of 1,3-cyclohexanebis (methylamine) and adipic acid, in the specified proportions shown in the drawing. The copolyamide is easily soluble in lower aliphatic alcohols and has good transparency. Solutions of the copolyamide in alcohol have superior stability.

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Nagoya, Japan

Hiroshi Kodama