Patent ID: 8557874

Claim:
A hemostatic material, comprising a polymer of oxidized derivatized esterified cellulose comprising a chain of monomers, each monomer having a structural formula of: wherein, for a first plurality of the monomers in the chain: R is —OCH 2 (COO)CH 2 CH 3 , R1 is —OCH 2 (COO)CH 2 CH 3 , and R2 is —CH 2 OCH 2 (COO)CH 2 CH 3; and wherein, for a second plurality of monomers in the chain: R is —OCH 2 (COO)CH 2 CH 3 , R1 is —OCH 2 (COO)CH 2 CH 3 , and R2 is —(COO)CH 2 CH 3 .