Organo phosphorus ester plasticized polycarbonate composition

Claim 1

A plasticized polycarbonate composition comprising in admixture, a high molecular weight aromatic carbonate polymer having an IV of 0.40 to 1.0 dl./g. in methylene chloride at 25° C and a minor amount of an oligomeric-polymeric organo phosphorus ester of the following formula: ##STR16## wherein R 1 is independently selected from the group consisting of hydrogen, halogen or C 1 to C 12 alkyl; R 2 is independently selected from the group consisting of hydrogen or C 1 to C 5 alkyl; R 3 is independently selected from the group consisting of hydrogen, halogen or C 1 -C 2 alkyl; X is selected from the group consisting of: ##STR17## wherein A is ##STR18## and R 4 is hydrogen or C 1 -C 4 alkyl; R is independently selected from the group consisting of hydrogen, C 1 -C 15 alkyl; aryl or 6-14 carbon atoms and substituted aryl wherein the substituents are C 1 -C 5 alkyl; (b) --CH 2 CH 2 -- (c) --CH.sub.2 B-CH.sub.2 -- wherein B is C 1 -C 16 alkylene or arylene of 6 to 14 carbon atoms; ##STR19## wherein a is an integer of 3 to 15; (e) --O-- (f) --S-- Y is O, S or an electron pair; M is selected from the group consisting of C 1 -C 30 alkyl, aryl of 6 to 14 carbon atoms, C 1 -C 30 alkoxy, aryloxy of 6 to 14 carbon atoms, alkylthio of 1 to 30 carbon atoms, arylthio of 6 to 14 carbon atoms, alkylamino of 1 to 30 carbon atoms, arylamino of 6 to 14 carbon atoms and substituted aryl wherein the substituents are C 1 to C 30 alkyl, aryloxy of 6 to 14 carbon atoms, alkylthio of 1 to 30 carbon atoms, arylthio of 1 to 30 carbon atoms, arylthio of 6 to 14 carbon atoms; T is ##STR20## wherein Y and M are as previously defined; m and n are integers from 0 to 80 provided the sum of m and n is at least 2; and Z is ##STR21## wherein R 1 , R 2 , R 3 and X are as previously defined and p is an integer of 0-5.