| abstract |
PURPOSE:To provide the titled halogen-free composition outstanding in flame- retardancy, mechanical strength, electrical properties and deterioration resistance, generating no toxic gas even in case exposed to flame, comprising an olefin resin, hydrated alumina, etc., and oxide of specific metal in specified proportions. CONSTITUTION:The objective composition comprising (A) 100pts.wt. of an olefin resin (pref., a straight chain polyethylene with a density 0.91-0.96 and metal index 0.1-10 prepared by polymerization of ethylene under reduced pressure using as the comonomer 4-10C olefin), (B) 50-250pts.wt. of hydrated alumina and/or hydrated magnesia, and (C) 0.1-8(pref., 0.5-5)pts.wt. of an oxide of metal selected from Ni, Mn, Zn, Al, Zr, Sb and Fe. |