Daicel Corporation

Mitsubishi Gas Chemical Company, Inc.

Akira Ohi

Yukio Hozumi

Yoshitaka Masuda

Hiroyuki Yoshizaki

Hiromitsu Takanohashi

Yuzo Sonoyama

Yuzo Toga

Tatuhiko Imai

An impact-resistant, flame-retardant resin composition is disclosed comprising

Impact-resistant, flame-retardant resin composition

A polystyrene resin composition is prepared by adding to polystyrene resin, a mixture of (a) tricresyl phosphate and/or triphenyl phosphate and (b) a carbonate oligomer of 2,2-(4-4'-dihydroxy-3,3,',5,5'-tetrabromodiphenyl) propane which is terminated at its ends with a monofunctional phenol. These compounds are mixed with the oligomer in a selected mole ratio. The resin composition is self-extinguishing and possesses excellent thermal resistance, without diminution of the other original desireable properties of the resin.

Self-extinguishing polystyrene resin composition

A flame retardant resin composition having a high impact resistance is disclosed, containing (A) 20 to 85 weight percent of a high molecular weight aromatic polycarbonate copolymer comprising (1) 2 to 30 molar percent of a bisphenol the nucleus of which is substituted with a halogen and (2) 70 to 98 molar percent of a halogen-free bisphenol and (B) 80 to 15 weight percent of an ABS resin comprising a mixture of (1) a graft copolymer of a butadiene-based rubbery polymer to which is grafted a vinyl aromatic hydrocarbon and acrylonitrile and and (2) a copolymer of a vinyl aromatic hydrocarbon and acrylonitrile. The amount of said rubbery polymer is 5 to 40 weight percent of the ABS resin.

Resin composition having high impact resistance

A styrene-acrylonitrile resin composition having a good parting property comprising a styrene-acrylonitrile resin having blended therein, an .alpha.-olefin epoxide of the following formula: ##EQU1## wherein R and R' each is hydrogen or a straight-chain alkyl group, with the proviso that the sum of the carbon atoms in R plus R' is from 8 to 13, preferably 10 to 12.

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Sakai, Japan

Akira Ohi