Flame retardant cyclic olefinic polymer composition

A flame retardant cyclic olefinic polymer composition which comprises

• (A) 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 following general formula (I) or a hydrogenated derivative of the polymer which copolymer or polymer has a limiting viscosity (.eta.) 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;
• ##STR85## ##STR86## wherein, R.sup.1 to R.sup.12 is a hydrogen atom, hydrocarbon group or halogen atom and may be the same or different, or R.sup.9 and R.sup.10, or R.sup.11 and R.sup.12 may combine to form a divalent hydrocarbon group, or R.sup.9 or R.sup.10 together with R.sup.11 or R.sup.12 may form a ring;
• and n is O or a positive integer, and when R.sup.5 to R.sup.8 are plurally repeated, n"n"s may be the same or different;
• (B) a halogen containing flame retardant,
• (C) an antimony containing flame retardant,
• (D) polytetrafluoroethylene, and wherein 3 to 50 wt. parts of (B) component, 1 to 30 wt. parts of (C) component and 0.01 to 5 wt. parts of (D) component are compounded per 100 wt. parts of (A) components and
• (E) at least one copolymer selected from the group consisting of 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 temperature of 0.degree. C. or less, and
• wherein 5 to 100 wt. parts of (E) component is compounded per 100 wt. parts of (A) component.