Patent ID: 8309132

Claim:
A polyesteramide comprising Formula I: —[(X—O—) a —C(═O)—R 1 —C(═O)—(O—Y) b —(O—Y 1 ) b —NH—R 2 —NH—(X 1 —O—) a ] n — I wherein: each R 1 and R 2 is independently alkylene, cycloalkylenealkylene, arylenealkylene, arylenealkylenearylene, cycloalkylenealkylenecycloalkylene, or arylenealkylenecycloalkylene, wherein: (1) one or more of the —CH 2 — moieties in the alkylene chain portion of an alkylene, cycloalkylenealkylene, arylenealkylene, arylenealkylenearylene, cycloalkylenealkylenecycloalkylene, or arylenealkylenecycloalkylene moiety are optionally replaced by —O— or —S—; or (2) one or more of the —CH 2 —CH 2 — moieties in the alkylene chain portion of an alkylene, cycloalkylenealkylene, arylenealkylene, arylenealkylenearylene, cycloalkylenealkylenecycloalkylene, or arylenealkylenecycloalkylene moiety are optionally replaced by —C(═O)—O— or —O—C(═O)—; each X and X 1 is independently —C(═O)—CH(CH 3 )—, —C(═O)—(CH 2 ) y — or —C(═O)—(CH 2 CH 2 O) z —CH 2 —; each Y and Y 1 is independently —CH(CH 3 )—C(═O)—, —(CH 2 ) y —C(═O)— or —(CH 2 CH 2 O) z —CH 2 —C(═O)—; each a and b is independently an integer from about 1 to about 6; each y and z is independently an integer from about 1 to about 24; and n is an integer from about 5 to about 5000.