Non cross-linked block polyetherester, preparation and uses

Details Non cross-linked block polyetherester, preparation and uses Non cross-linked block polyetherester, preparation and uses

C - Chemistry, Metallurgy

08

G

C08G 63/672 (2006.01) A61K 9/00 (2006.01) A61K 9/16 (2006.01) A61K 47/34 (2006.01) A61K 47/48 (2006.01) C08G 63/64 (2006.01) C08G 63/676 (2006.01)

Patent

CA 2330498

The invention concerns a non cross-linked block polymer. It also concerns a method for preparing it and its use particularly in pharmaceutical compositions. Said block polymer is characterised in that it contains polyethylene glycol sequences bound with polyester and/or polycarbonate sequences. The polyester sequences are selected among polyfumarate, polymaleate and polysuccinate sequences.

La présente invention concerne un polymère séquencé non réticulé. Elle concerne également un procédé pour sa préparation ainsi que son utilisation notamment dans des compositions pharmaceutiques. Le polymère séquencé selon l'invention contient des séquences de polyéthylène glycol liées à des séquences de polyester et/ou de polycarbonate. Les séquences de polyester sont choisies en particulier parmi des séquences de polyfumarate, polymaléate et polysuccinate.

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