| 摘要 |
A flame retardant cyclic olefinic polymer corn, position which comprises ¢A! (s) a cyclic olefinic random copolymer formed from an ethylenic component and a cyclic olefinic component represented by the following general formula ¢I!, or (b) a ring-opened polymer of a cyclic olefinic component represented by the folowing general formula ¢I! or a hydrogenated derivative of the polymer which copolymer or polymer has a limiting viscosity of 0.01 to 10 dl/g measured in decalin at 135 .degree.C and a softening temperature (TMA) of 70 .degree.C or more; <IMG> ¢B! a halogen type flame retardant, ¢C! an antimony type flame retardant, and ¢D! polytetrafluoroethylene, and if desured ¢E! at least one copolymer selected from an amorphous or low crystalline alpha-olefinic copolymer which is formed from at least two alpha-olefins, and an amorphous or low crystalline copolymer which contains as one of monomer constituents styrene or its derivative and has at least one of glass transition temperatures of 0 .degree.C or less, and if desired ¢F! magnesium hydroxide.
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