Thermogelling biodegradable aqueous polymer solution

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 81/00 (2006.01) A61K 9/00 (2006.01) A61K 9/10 (2006.01) A61K 47/34 (2006.01) C08G 63/664 (2006.01) C08G 65/08 (2006.01) C08J 3/075 (2006.01) C08L 67/04 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2423488

Disclosed is a thermogelling biodegradable aqueous polymer solution useful in providing a bioactive agent delivery system. The present inventio rovides a thermogelling biodegradable aqueous polymer solution with a polyethylene glycol (PEG) block and a biodegradable pojlyester block, where the blocks are linked to form a polymer of a general structure comprising the formula of An(B), where n is greater than 2 and A is selected from the group consisting of a polyethylene glycol block and a biodegradable polyester block, B is selected from the group consisting of a polyethylene glycol block and a biodegradable polyester block, and A is different from B.

L'invention concerne une solution de polymère aqueux biodégradable thermogelant servant à produire un système de diffusion d'agent bioactif. L'invention concerne également une solution de polymère aqueux biodégradable thermogelant dotée d'un bloc de glycol polyéthylène (PEG) et d'un bloc de polyester biodégradable dans lequel les blocs sont liés afin de former un polymère de structure générale comprenant la formule de A¿n?(B), dans laquelle n est supérieur à 2 et A est sélectionné dans le groupe composé d'un bloc de glycol polyéthylène et un bloc de polyester biodégradable, B est sélectionné à partir du groupe composé d'un bloc de glycol polyéthylène et d'un bloc de polyester biodégradable et A est différent de B.

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