POLYMERS COMPRISING AMORPHOUS TERPOLYMERS AND SEMICRYSTALLINE BLOCKS

摘要

PROBLEM TO BE SOLVED: To provide a semi-crystalline composition for coating an implantable device comprising poly(L-lactide).SOLUTION: The present invention provides an implantable article comprising an amorphous terpolymer and a semi-crystalline polymer. The amorphous terpolymer comprises lactide, glycolide, and a low Tg monomer. The semi-crystalline polymer comprises poly(L-lactide). The amorphous terpolymer is admixed with the semi-crystalline polymer. The amorphous terpolymer has a weight ratio (Rt) of about 50% or more of the total weight of the amorphous terpolymer and the semi-crystalline polymer (R), and the semi-crystalline polymer has a weight ratio (Rs) of about 50% or less of the total weight of the amorphous terpolymer and the semi-crystalline polymer, where Rt+Rs=100% is satisfied.