RESORBABLE BLOCK COPOLYMERS OF POLYETHERS AND POLYESTERS AND USE THEREOF IN PRODUCING MEDICAL IMPLANTS Russian patent published in 2011 - IPC C08G63/08 C08G63/66 C08F293/00 A61L27/18 A61L31/06 

FIELD: chemistry.

SUBSTANCE: present invention relates to resorbable block copolymers for producing resorbable surgical or therapeutic implants for humans and animals. The block copolymer is of type AB or ABA. Block A is formed by polyester and block B is formed by polyether. Type AB has the formula: E-(O-D-CO-)_n-(O-CH₂-CH₂-)_m-O-F, where the structural link E-(O-D-CO-)_n forms block A, and link -(O-CH₂-CH₂-)_m forms block B. Type ABA has the formula: E-(O-D-CO-)_n-(O-CH₂-CHr)_m-O-(CO-D-O-)_n'-E, in which links E-(O-D-CO-)_n and E-(O-D-CO-)_n. form block A, and link -(O-CH₂-CH₂-)_m forms block B. Content of block B ranges from 0.1 to 4 wt %. The invention also relates to a method of producing and cleaning said block copolymers contaminated with monomers.

EFFECT: obtaining block copolymers or implants from said block copolymers, characterised by high mechanical strength, elasticity, viscosity and fast kinetic resorption.

42 cl, 3 tbl, 4 ex