Copolymers of the addition of lactide, glycolide be used as a basis for surgical equipment absorbable, and method of preparation of these copolymers

摘要

P the invention relates to the crystalline copolymers of lactide, glycolide, of high molecular weight, which can form of fibers, and a method of manufacture of these copolymers in two phases, the first stage consisting in preparing a random copolymer of a high proportion of lactide optically active with a small proportion of glycolide or d, 1 - lactide, the second phase consists in mixing a large amount of monomers glycolide and a small amount of monomers, lactide with the copolymer of the first phase and to resume the polymerization to obtain a copolymer of the addition of lactide, glycolide of high molecular weight, containing 50% to 75% by weight of moieties derived from glycolide. The polymer according to the invention may be placed in the fibers and serve for the preparation of surgical sutures absorbable. / p