THERMOPLASTIC PASTE FOR REPAIRING LIVING TISSUES

摘要

This invention relates to a thermoplastic paste with a highly thixotropic rheology, the components of which are a block biopolymer and a bioceramic. The material described herein can be used in bone implants and in the regeneration of both animal and plant live tissues.

主权项

1. Thermoplastic paste with thixotropic rheology comprising:
a) a block biopolymer, of formula [(A-B-C)n-D-E-D-(A-B-C)n-]m, comprising a rigid block (A-B-C)n and a flexible block (-D-E-D-). wherein:
A and C are dihydroxy or diamino monomersB and D are dicarboxylic acids,E is a polymer with a hydroxyl number ≧10.n and m are numerical indices ≧1 and wherein:
the rigid block, (A-B-C)n, consists of a polymer comprising ester type bonds and optionally amide type bonds and,wherein the flexible block, (-D-E-D-), consists of a second polymer comprising a hydrocarbon chain containing ester or ether type bonds. b) a bioceramic in a proportion of 10-70% of the total weight of the thermoplastic paste.