Amorphous polyester urethane networks having shape memory...

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 18/42 (2006.01) C08F 283/00 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/73 (2006.01)

Patent

CA 2537154

The invention relates to a novel system of amorphous polymer networks comprising one or several segments with shape memory properties in order to avoid structural heterogeneities in the networks. Said networks are preferably composed of biodegradable and biocompatible components and can be used in the medical domain. The systemic character of the materials allows the thermal and mechanical properties as well as the decomposition behavior to be adjusted in a specific manner. The invention particularly makes it possible to produce polyphase amorphous networks.

Selon l'invention, pour éviter des inhomogénéités structurales de réseaux, un nouveau système de réseaux polymères amorphes constitués d'au moins un segment présentant des caractéristiques de mémoire de forme est mis à disposition. Les réseaux sont constitués, de préférence, de composants biodégradables et biocompatibles, ce qui les rend aptes à une utilisation dans le domaine médical. Le fait que ces matériaux sont formés par un système permet de leur conférer de façon ciblée des caractéristiques thermiques et mécaniques ainsi qu'un certain comportement de dégradation. La présente invention permet en particulier la production de réseaux amorphes multiphases.

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