Patent ID: 8431665

Claim:
A biocompatible polymer comprising: a copolymer having the formula: wherein: each of R 1 , R 2 , and R 4 is independently hydrogen or methyl; each R 3 independently includes a zwitterion group, a linker being a chain of 2-12 carbon atoms, and an ester or amide attachment to the acryl or methacryl group; each R 5 is independently ethyl or methyl; each R 6 is independently a straight chain, branched, unsaturated, or cyclic hydrocarbon of one to sixteen carbon atoms; n is a mole fraction in a range from about 0.01 to about 0.75; m is a mole fraction in a range from about 0.1 to about 0.99, o is a mole fraction in a range from about 0.1 to about 0.99, and m+n+o=1.