Flame retardant polycarbonate composition

Claim 2

A flame retardant carbonate polymer composition selected from the group consisting of: (a) a carbonate polymer having in admixture a minor amount of an additive selected from the group consisting of the metal salts of unsubstituted and substituted polymeric phenol ester sulfonic acid, and mixtures of the metal salts of unsubstituted and substituted monomeric phenol ester sulfonic acid and the metal salts of unsubstituted and substituted polymeric phenol ester sulfonic acid wherein the metal salts are selected from the group consisting of the alkali metal salts and alkali earth metal salts and mixtures of these metal salts, and the substituent on the metal salts of the substituted monomeric and polymeric phenol ester sulfonic acid is selected from the group consisting of an electron withdrawing radical, and mixtures of electron withdrawing radicals, (b) a metal salt of a sulfonic acid substituted carbonate polymer wherein said metal salt comprises from 0.01 to up to 10.0 weight percent of said polymer, and (c) mixtures of (a) and (b).

Claim 3

The composition of claim 1 wherein the admixture comprises 0.01 to about 10 weight percent of the additive based on the weight of the aromatic carbonate polymer composition.

Claim 4

The composition of claim 1 wherein the electron withdrawing radical is selected from the group consisting of halo-, nitro-, trihalomethyl- and cyano- radicals, and mixtures thereof.

Claim 5

The composition of claim 1 wherein the metal salt of the unsubstituted and substituted polymeric phenol ester sulfonic acid has the following formula: ([R].sub.z {[A][X].sub.y [B].sub.1-3 }[R].sub.z {[A][X].sub.y [B].sub.1-3 }).sub.b I. wherein [A] and [B] are independently selected from the following formula: (O).sub.q R'(SO.sub.3 M).sub.n R".sub.p II. wherein R' is an aromatic radical of 1-4 aromatic nuclei, O is oxygen, M is a metal selected from the group consisting of alkali metal and alkali earth metal, R" is an electron withdrawing radical, q is an integer of from 1-4, n is an integer of from 0-4 and p is an integer of from 0-10; 20 and wherein in Formula I, [R] is an organic radical of 1-20 carbon atoms and is selected from the group consisting of alkyl, aralkyl, alkenyl, aralkenyl, aryl, arylene, alkylene, aralkylene, alkenylene, aralkenylene, alkylidene, aralkylidene, alkenylidene, aralkenylidene, [A] and [B], z is an integer of from 0-1, X] is selected from the group consisting of: ##STR3## y is an integer of from 1-2, m is an integer of from 1-4 and a is an integer of from 0-2000 and b is an integer of from 0-2000; provided, however, that the sum of a and b must equal at least 4 and further provided that the sum of n when employed in Formula I must be at least 1.

Claim 6

The composition of claim 4 wherein the electron withdrawing radical is selected from the group consisting of halo-, nitro-, trihalomethyl- and cyano- and mixtures thereof.

Claim 7

The composition of claim 4 wherein the electron withdrawing radical is chlorine.

Claim 8

The composition of claim 4 wherein M is sodium.

Claim 9

The composition of claim 4 wherein the metal salt of the substituted polymeric phenol ester sulfonic acid is sodium [phenyl 2,4,5-trichlorobenzenesulfonate]-4'-sulfonate.

Claim 10

This composition of claim 1 wherein the metal salt of a sulfonic acid substituted sulfonated carbonate polymer is polysodium [(bisphenol-A)-(tetrabromobisphenol-A) copolycarbonate] polysulfonate having therein 1.1 weight percent of (SO 3 Na) radical and 0.8 weight percent bromine based on the weight of the polymer.

Claim 11

The composition of claim 1 (b) wherein the metal salt of a sulfonic acid substituted carbonate polymer is polysodium (bisphenol-A-polycarbonate) polysulfonate having therein 1.1 weight percent of (SO 3 Na) radical based on the weight of the polymer.

Claim 12

The composition of claim 1 (b) wherein the metal salt of a sulfonic acid substituted sulfonated carbonate polymer is polysodium (bisphenol-A) (isophthalic acid-terephthalic acid) (copolyestercarbonate) polysulfonate having therein 2.7 weight percent of (SO 3 Na) radical based on the weight of the polymer.