| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin composition having nondrippiness without detriment to mechanical properties, heat stability and surface gloss by mixing a styrene resin with a bromine-containing flame retardant, antimony trioxide and a multi- component copolymer having a specified compositional ratio. SOLUTION: This composition comprises 100 pts.wt. styrene resin, 10-30 pts.wt. bromine-containing flame retardant, 3-10 pts.wt. antimony trioxide and 0.3-12 pts.wt. multi-component copolymer having a composition of 5-99.5 wt.% epichlorohydrin, 94.5-0 mol.% ethylene oxide and 0.5-10 mol.% allyl glycidyl ether. The styrene resin is based on a homopolymer of styrene or a styrene derivative such asα-methylstyrene, vinyltoluene or chlorostyrene or a copolymer thereof with other monomers. The bromine-containing flame retardant used is decabromodiphenyl oxide or the like. The multi-component copolymer is prepared by copolymerizing the monomers in the presence of a catalyst such as an organoaluminum compound.
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