Polycarbonate composition containing siloxane plasticizer

Claim 1

A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of a siloxane plasticizer characterized by the following formulae: ##STR19## wherein V, W, X and Y are independently selected from the following formula: ##STR20## wherein R is independently selected from the group consisting of C 1 to C 30 alkyl; C 1 to C 30 alkoxy; aryl of 6 to 14 carbon atoms; substituted aryl wherein the substituents are C 1 to C 30 alkyl, C 1 to C 30 alkoxy and halogen; aryloxy of 6 to 14 carbon atoms; a and b are integers of 0 to 1; when a or b are 0, then A is ##STR21## wherein R 1 is hydrogen or the same as R; when both a and b=1, then A is ##STR22## when both a and b=0, then A is --O--R 2 --O-- wherein R 2 is C 1 to C 10 alkylene and substituted alkylene wherein the substituents are C 1 to C 30 alkyl and C 6 to C 14 aryl; arylene of 6 to 10 carbon atoms and substituted arylene wherein the substituents are C 1 to C 30 alkyl; C 1 to C 30 alkoxy and halogen; cycloalkylene of 4 to 20 carbon atoms and substituted cycloalkylene wherein the substituents are C 1 to C 30 alkyl and aryl of 6 to 14 carbon atoms; ##STR23## wherein Z is selected from the group consisting of C 1 to C 10 alkylene; C 1 to C 20 alkylidene; cycloalkylene of 4 to 20 carbon atoms, cycloalkylidene of 4 to 20 carbon atoms and substituted alkylene, alkylidene, cycloalkylene and cycloalkylidene wherein the substituents are C 1 to C 30 alkyl and aryl of 6 to 14 carbon atoms; --O--; --S--; ##STR24## C and D are independently selected from the group consisting of halogen and C 1 to C 12 alkyl; ##STR25## wherein R is as defined previously; R 3 is C 1 to C 10 alkylene and substituted alkylene wherein the substituents are C 1 to C 30 alkyl and C 6 to C 14 aryl; arylene of 6 to 14 carbon atoms and substituted arylene wherein the substituents are C 1 to C 30 alkoxy and halogen and where two R 3 groups form the following radical: ##STR26## wherein R and R 3 are as defined previously and wherein the three R 3 groups are replaced by the following radical: ##STR27## and mixtures thereof.