Patent ID: 7713637

Claim:
A composition comprising a PEGylated hyaluronic acid (HA) and a PEGylated non-HA polymer, wherein the PEGylated HA and the non-HA polymer are independently modified with poly(ethylene glycol) (PEG), PEG like molecule or a combination thereof, wherein the PEGylated HA has a molecular weight in the range from about 7,000 Daltons to 320,000 Daltons, and wherein the PEGylated non-HA polymer is selected from the group consisting of PEGylated polyacrylates, PEGylated peptides, PEGylated proteins, and combinations thereof, wherein the PEG like molecule is selected from the group consisting of polyethers, polyglycols, polyalkylene oxides, and combinations thereof.