A plasticized thermoplastic polymer

Claim 2

A plasticized thermoplastic polymer composition comprising in admixture, a thermoplastic polymer selected from a polyarylate derived from a dihydric phenol and at least one aromatic dicarboxylic acid, a polyetherimide, an aromatic polycarbonate ana a poly(aryl ether) having a molecular weight in excess of 10,000, and a plasticizing amount of a poly(aryl ether) having a molecular weight of from about 1000 to about 5000.

Claim 3

A composition as defined in claim 1 wherein the poly(aryl ether) comprises recurring units of the formula: wherein E is the residuum of a dihydric phenol and E' is the residuum of a benzenoid compound having an inert electron withdrawing group.

Claim 4

A composition as defined in claim 2 wherein the poly(aryl ether) has recurring units having the formula: the A's may be the same or different inert substituent groups and are selected from alkyl groups having from 1 to 4 carbon atoms, fluorine, chlorine, bromine, iodine, or alkoxy radicals having from 1 to 4 carbon atoms, R 1 represents a bond between aromatic carbon atoms or a divalent connecting radical, R 2 is sulfone, carbonyl or sulfoxide, the r's are integers having a value of from 0 to 4, inclusive.

Claim 5

A composition as defined in claim 3 wherein the r's are O,R 2 is SO 2 , and R 1 is the following;

Claim 6

A composition as defined in one or more of the claims 1-4 wherein the dihydric phenol is of the formula: wherein Y is selected from alky groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4, inclusive, and R 4 is a divalent saturated or unsaturated aliphatic hydrocarbon radical selected from alkylene and alkylidene radicals having from 1 to 3 carbon atoms, and cycloalkylene or cycloalkylidene radicals having up to and including 9 carbon atoms.

Claim 7

A composition as defined in claim 5 wherein each z is 0 and R 4 is an alkylidene radical of 3 carbon atoms.

Claim 8

A composition as defined in one or more of the claims 1-6 wherein the aromatic dicarboxylic acid is a mixture of isophthalic and terephthalic acids.

Claim 9

A composition as defined in one or more of the claims 1-7 wherein the polyetherimides are of the following formula: wherein a is an integer greater than 1, preferably from about 10 to about 10,000 or more, -O-R 4 -O- is attached to the 3 or 4 and 3' or 4' positions and R 4 is selected from (a) a substituted or unsubstituted aromatic radical such as (b) a divalent radical of the formula: wherein R 6 is independently C 1 to C 6 alkyl, or halogen and R 7 is selected from -0-, -S-, -SO-, alkylene . of 1 to 6 carbon atoms, cycloalkylene of 4 to 8 carbon atoms, alkylidene of 1 to 6 carbon atoms or cycloalkylidene of 4 to 8 carbon atoms, R 5 is selected from an aromatic hydrocarbon radical having from 6-20 carbon atoms and halogenated derivatives thereof, or alkyl substituted derivatives thereof, wherein the alkyl group contains 1 to 6 carbon atoms, alkylene and cycloalkylene radicals having from 2 to 20 carbon atoms, C 2 -C 8 alkylene terminated polydiorganosiloxane and a divalent radical of the formula wherein R 6 are as previously defined, and R 8 may be a direct bond. wherein -0-Z is a member selected from wherein R 9 is independently hydrogen, lower alkyl or lower alkoxy and, wherein the oxygen may be attached to either ring and located ortho or para to one of the bonds of the imide carbonyl groups, R 4 and R 5 and a are as previously defined.

Claim 10

A composition as defined in one or more of the claims 1-8 wherein the aromatic polycarbonate is the reaction product of a dihydric phenol and a carbonate precursor, preferably carbonyl chloride.

Claim 11

A composition as defined in claim 9 wherein the dihydric phenol is bisphenol-A.