Aromatic polycarbonate resin end capped with hydroxy arylene sulfonate

Claim 2

A composition comprising an endcapped aromatic carbonate polymer resin partially end-capped with an essentially non-emulsion making and non-Newtonian rheology making quantity of moiety derived from a compund of the formula ##STR9## wherein ##STR10## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.

Claim 3

A composition in accordance with claim 1 wherein ##STR11##

Claim 4

A composition in accordance with claim 2 wherein R is an alkali metal cation.

Claim 5

A composition in accordance with claim 3 wherein R is sodium or potassium.

Claim 6

A composition in accordance with claim 1 wherein the aromatic carbonate polymer resin is non-branched.

Claim 7

A composition in accordance with claim 5 wherein the aromatic carbonate polymer resin is derived from bisphenol-A.

Claim 8

An endcapped aromatic carbonate polymer resin prepared from a process comprising contacting at a pH greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR12## wherein ##STR13## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.

Claim 9

An endcapped aromatic carbonate polymer resin prepared from a process comprising contacting at a pH greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR12## wherein ##STR13## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.

Claim 10

A resin in accordance with claim 4 wherein ##STR14##

Claim 11

A resin in accordance with claim 8 wherein R is an alkali metal cation.

Claim 12

A resin in accordance with claim 9 wherein R is sodium or potassium.

Claim 13

A polymer in accordance with claim 7 wherein the aromatic carbonate polymer resin is non-branched.

Claim 14

A polymer resin in accordance with claim 7 wherein the process pH is from about 12 to about 13.

Claim 15

A polymer resin in accordance with claim 11 wherein the dihydric phenol is bisphenol-A.

Claim 16

A polymer resin in accordance with claim 18 wherein about 1 to about 7 mol percent of the total chain stopper present is a compound of the formula ##STR15##

Claim 17

A process for preparing an end-capped aromatic carbonate polymer resin which comprises contacting at a pH of greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR16## wherein ##STR17## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.

Claim 18

A process for preparing an end-capped aromatic carbonate polymer resin which comprises contacting at a pH of greater than or equal to about 12 a dihydric phenol with a carbonate precursor, a non-sulfonated phenolic chain stopper and an essentially non-emulsion making and non-Newtonian rheology making quantity of a compound of the formula ##STR16## wherein ##STR17## is phenylene or naphthylene, X is a sulfonate (SO 3 .sup.⊖) group located on the ring in a position which is not ortho to the hydroxyl group, R is an alkali or alkaline earth metal cation.

Claim 19

A process in accordance with claim 15 wherein ##STR18##

Claim 20

A process in accordance with claim 15 wherein the phenolic chain stopper is phenol.

Claim 21

A process in accordance with claim 17 wherein R is an alkali metal cation.

Claim 22

A process in accordance with claim 18 wherein R is sodium or potassium.

Claim 23

A process in accordance with claim 15 wherein the aromatic carbonate polymer resin is non-branched.

Claim 24

A process in accordance with claim 15 wherein the pH is from about 12 to about 13.

Claim 25

A process in accordance with claim 20 wherein the dihydric phenol is bisphenol-A.

Claim 26

A process in accordance with claim 22 wherein about 1 to about 7 mol percent of the total chain stopper present is a compound of the formula ##STR19##