Patent ID: 6844416
Filing Date: 2005-01-18
Classification: C08G

Abstract:
1. A polycarbonate comprised of a repeating unit represented by Formula (I) wherein R 1 is selected from the group consisting of hydrogen, alkyl containing from about 1 to about 12 carbon atoms, halogenated alkyl containing from about 1 to about 25 carbon atoms, optionally as alkyl containing one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, silicon, and phosphorus; aryl optionally containing from about 6 to about 15 carbon atoms or substituted aryl optionally containing from about 6 to about 15 carbon atoms; R 2 represents a divalent linkage optionally selected from the group consisting of alkylene of from 1 to about 15 carbon atoms, alkylene of from 1 to about 15 carbon atoms containing one or more heteroatoms of halogen, nitrogen, oxygen, sulfur, silicon, and phosphorus, arylalkylene of optionally from 1 to about 15 carbon atoms, and arylene optionally of from 1 to about 15 carbon atoms; Ar 1 and Ar 2 each independently represent aromatic groups optionally containing from about 6 to about 30 carbon atoms; n represents the number of segments of from 1 to about 10; R 3 represents an alkyl group optionally containing from about 1 to about 10 carbon atoms, an aryl group containing from about 6 to about 15 carbon atoms; R 4 represents an alkyl group optionally containing from about 1 to about 5 carbon atoms; and m is 0, 1 or 2.