Patent ID: 6423818
Filing Date: 2002-07-23
Classification: A61L,B33Y,C08G,C08K,Y10S,Y10T

Abstract:
A fluid prepolymer comprising a polymer prepared from at least one lactone monomer selected from the group consisting of &egr;-caprolactone, trimethylene carbonate, glycolide, L-lactide, D-lactide, DL-lactide, p-dioxanone, 5,5-dimethyl-1,3-dioxan-2-one, 1,4-dioxepan-2-one and 1,5-dioxepan-2-one, said prepolymer being a liquid at 65Â° C. or at a lower temperature and comprising coumarin ester endgroups, wherein the inherent viscosity of the polymer is between about 0.05 dL/g and about 0.8 dL/g as determined in a 0.1 g/dL solution of hexafluoroisopropanol at 25Â° C.