Patent ID: 7687584

Claim:
A miscible polycarbonate blend comprising two or more aromatic polycarbonates, each independently having a structure of: wherein a and b are integers each independently from 0 to about 1,000; where a or b can be 0; or a and b are greater than 0; n and m are integers each independently from about 1 to about 3; q is 0 or 1 when b is greater than 0 and q is 1 when b is 0; R 1 and R 5 are capping groups; and R 2 and R 3 are divalent linkers; and wherein the aromatic polycarbonates are selected from one or more homopolycarbonates and one or more copolycarbonates or a combination thereof; where the homopolycarbonates are each independently selected from BPA-PC, TABPA-PC, and TriBPA; and where the copolycarbonates are each independently selected from TABPA/BPA-PC, TABPA/DOD-PC, TriBPA/BPA-PC, and TriBPA/DOD-PC; wherein at least one polycarbonate is a high aspect ratio polycarbonate.