Patent ID: 8058386
Filing Date: 2011-11-15
Classification: A61L,C08G,C08L

Abstract:
1. A polyether poly(ester-amide) block copolymer comprising at least one structure selected from the group consisting of structure I, structure II, structure III, structure IV, structure V and structure VI: wherein R Z═O or NH; R or R n=20, such that the ratio of (—O—R wherein R Z═O or NH; R or R n=20, such that the ratio of (—O—R x=ethylene oxide (EO) groups; y=ethylene oxide (EO) groups where R or y=propylene oxide (PO) groups where R R wherein R Z═O or NH; R or R n=20, such that the ratio of (—O—R x=15; wherein R Z═O or NH; R or R R or R n=20, such that the ratio of (—O—R wherein R Z═O or NH; R or R R or R n=20, such that the ratio of (—O—R R x=ethylene oxide (EO) groups; and y=ethylene oxide (EO) groups where R or y=propylene oxide (PO) groups where R wherein R Z═O or NH; R or R R or R n=20, such that the ratio of (—O—R x=15.