| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin composition exhibiting flame retardancy equal to that of a PVC resin and generating no toxic gas when subjected to incineration treatment by adding magnesium hydroxide, zinc borate and silicone powder to a polyolefinic resin. SOLUTION: To 100 pts.wt. of a polyolefinic resin are added 10-250 pts.wt. of magnesium hydroxide, 10-100 pts.wt. of zinc borate and 3-50 pts.wt. of silicone powder to give a non-halogen flame retardant resin composition. As the polyolefinic resin is preferable one comprising one or more than one selected among ethylene-vinyl acetate copolymers, ethylene-ethyl acrylate copolymers, ethylene-propylene rubbers, polypropylenes and polyethylenes. This resin composition has an oxygen index of at least 24 and flame retardancy to pass at least one of burning tests each prescribed in the law regulating electric appliances, the UL standards, the IEEE standards 383 and the IEC standard 332-1. |
