Novel halobisphenolethylene polycarbonate-vinyl aromatic resin blends

Claim 2

A polymer blend comprising: (I) about 1-99 parts by weight of a polycarbonate containing halobis(phenyl)ethylene carbonate units of formula (A): ##STR6## where independently each R 1 is hydrogen, chlorine, bromine or a C 1-30 monovalent hydrocarbon or hydrocarbonoxy group, each Z is hydrogen, chlorine or bromine, subject to the proviso that at least one Z is chlorine or bromine, and m is an integer of at least 2, and (II) about 99-1 parts by weight of a vinyl aromatic resin.

Claim 3

A claim 1 composition, wherein (I) the polycarbonate units are of the formula: ##STR7## where independently each R 1 is hydrogen, chlorine, bromine, C 1-4 alkyl or phenyl and m is an integer of at least 2.

Claim 4

The claim 2 composition, wherein (I) the polycarbonate unit R 1 substituents are hydrogen.

Claim 5

The claim 1 composition, wherein (I) the polycarbonate unit R 1 substituents are hydrogen, at least one Z substituent is chlorine and the other Z substituent is hydrogen.

Claim 6

The claim 1 composition, wherein the polycarbonate of (I) contains (a) about 1-100 parts by weight of halobis(phenol)ethylene polycarbonate units for formula (A): ##STR8## where independently each R 1 and Z are as defined hereinbefore, to (b) about 99-0 parts by weight of arene carbonate units of formula (B): ##STR9## wherein R f is an alkylene, alkylidene, cycloalkylene, cycloalkylidene or arylene linkage or a mixture thereof, a linkage selected from the group consisting of ether, carbonyl, amine, a sulfur or phosphorus containing linkage, Ar and Ar' are arene radicals, Y is a substituent selected from the group consisting of organic, inorganic and organometallic radicals, X is a monovalent hydrocarbon group selected from the class consisting of alkyl, aryl and cycloalkyl and mixtures thereof, a halogen, an ether group of the formula-OE, wherein E is a monovalent hydrocarbon radical similar to X, a monovalent hydrocarbon group of the type represented by R f , d represents a whole number of at least 1, c represents a whole number equal to at least 0 or more, a, b and c represent whole numbers including 0, a or c but not both may be 0, and wherein n is an integer of at least 2.

Claim 7

The claim 1 composition, wherein (II) the vinyl aromatic resin is derived from a styrenic monomer of the formula (C): ##STR10## wherein R 2 and R 3 are selected from the group consisting of lower alkyl or alkenyl groups of from 1 to 6 carbon atoms and hydrogen; R 4 and R 5 are selected from the group consisting of chloro, bromo, hydrogen and lower alkyl of from 1 to 6 carbon atoms; R 6 and R 7 are selected from the group consisting of hydrogen and lower alkyl and alkenyl groups of from 1 to 6 carbons or R 6 and R 7 may be concatenated together with hydrocarbyl groups to form a naphthyl group.

Claim 8

The claim 6 composition wherein (II) the vinyl aromatic resin is derived from a monomer of the formula (C) as defined hereinbefore and an olefinic monomer of the formula (D): ##STR11## wherein R 8 and R 9 represent a substituent selected from the group consisting of hydrogen, halogen, an alkyl group of 1-4 carbon atoms, carboalkoxy or R 8 and R 9 taken together represent an anhydride linkage (--COOOC--) and R 10 is hydrogen, vinyl, an alkyl or alkenyl group having 1 to 12 carbon atoms, cycloalkyl, carboalkoxy, alkoxy-alkyl, alkyl carboxy, ketoxy, halogen, carboxy, cyano or pyridyl and p is a whole number between 0 and 9.

Claim 9

The claim 7 composition wherein at least 25% by weight of the vinyl aromatic resin is derived from the styrenic monomer.

Claim 10

The claim 2 composition wherein such R is hydrogen and the vinyl aromatic resin is a high impact polystyrene.

Claim 11

The claim 2 composition, wherein each R is hydrogen and the vinyl aromatic resin is an acrylonitrile-butadiene-styrene resin.

Claim 12

The claim 2 composition, wherein each R is hydrogen and the vinyl aromatic resin is a styrene-maleic anhydride copolymer.