Fire-retardant resin composition

Claim 1

A fire-retardant resin composition comprising (A) 1 to 98.9% by weight of an aromatic copolyester comprising the reaction product in about equimolar amounts of (1) a mixture of terephthalic acid and isophthalic acid or the functional derivatives thereof with the terephthalic acid unit to the isophthalic acid unit molar ratio being about 9:1 to about 1:9 and (2) a bisphenol of the general formula [I] ##STR13## wherein --X-- represents a member selected from the group consisting of --O--, --S--, --SO 2 --, --SO--, --CO--, an alkylene group containing 1 to 5 carbon atoms and an alkylidene group containing 1 to 5 carbon atoms, and R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ' and R 4 ', which may be the same or different, each is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 5 carbon atoms, or a derivative thereof. (B) 1 to 98.9% by weight of a polyamide containing therein a repeating unit of the following general formula [II]: ##STR14## wherein R 5 , R 6 and R 7 , which may be the same or different, each represents an alkylene group containing 4 to 11 carbon atoms and n is an integer of from 30 to 500, and (C) 0.1 to 98% by weight of a polyalkylene phenylene ester or a polyalkylene phenylene ester ether containing therein a repeating unit of the following general formula [IV]; ##STR15## wherein R 8 , R 9 , R 10 and R 11 , which may be the same or different, each is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 5 carbon atoms, m is an integer from 1 to 10 and n is an integer from 30 to 500, and Y is an ester unit or an ether unit; and (D) 0.5 to 50% by weight, based on the total amount of components (A), (B), (C) and (D), of an aromatic halogen compound.