Flame retardant polycarbonate composition

Claim 2

A flame retardant aromatic carbonate polymer composition comprising in admixture an aromatic carbonate polymer and a minor amount of a metal salt of a mixture of a monomeric and polymeric aromatic sulfonesulfonate or a metal salt of a polymeric aromatic sulfonesulfonate wherein said metal salts are selected from the group consisting of the alkali metal salts and the alkaline earth metal salts and mixtures thereof.

Claim 3

The composition of claim 1 wherein the composition comprises in admixture 0.01 to about 10 weight percent of the metal salt of a mixture of a monomeric and polymeric aromatic sulfonesulfonate or a polymeric aromatic sulfonesulfonate.

Claim 4

The composition of claim 1 wherein the metal salt of the monomeric aromatic sulfonesulfonates have the following formula: R'(SO.sub.2).sub.1 R"(SO.sub.3 M).sub.1-6 X.sub.0-11 wherein M is a metal selected from the group consisting of alkali metal and alkali earth metal, R' and R" are independently selected from the group consisting of aryl radicals of 1-2 aromatic rings and an aliphatic radical of 1-6 carbon atoms, provided, however, that R' and R" together must contain at least one aromatic ring, and wherein X is an electron withdrawing radical.

Claim 5

The composition of claim 3 wherein the electron withdrawing radical is selected from the group consisting of halo-, nitro-, trihalomethyl- and cyano- radicals and mixtures thereof.

Claim 6

The composition of claim 3 wherein the electron withdrawing radical is chlorine.

Claim 7

The composition of claim 3 wherein the metal salt is disodium diphenylsulfone-3,3'-disulfonate.

Claim 8

The composition of claim 3 wherein the metal salt is potassium diphenylsulfone-3-sulfonate.

Claim 9

The composition of claim 1 wherein the metal salt of the aromatic sulfonesulfonates have at least 2 repeating units of the following formula: [AB].sub.m [CB].sub.n p wherein B is an aromatic sulfone of the following formula: ##STR12## and A and C are dioxy radicals having 1-2 aromatic rings and are independently selected from the group consisting of ##STR13## wherein M is a metal selected from the group consisting of alkali metal and alkali earth metal, R is an aliphatic radical selected from the group consisting of alkylene and alkylidene radicals of 1-10 carbon atoms, X is a halo electron withdrawing radical, y is an integer of 0-4 providing that the sum of y is at least 1, m is 1, n is an integer of 0-20 and p is an integer from 2-200.

Claim 10

The composition of claim 8 wherein the metal salt is: ##STR14##

Claim 11

The composition of claim 8 wherein the metal salt is: ##STR15##