High molecular weight polymers, devices and method for...

A - Human Necessities – 61 – K

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A61K 31/74 (2006.01)

Patent

CA 2527495

Anhydride polymers that release active or activatable agent(s) have pre- selected properties such as molecular weight, flexibility, hardness, adhesiveness, and other valuable properties. The polymers are suitable for use in compositions, formulations, coatings, devices, and the like that benefit from the controlled release of an agent(s) over a period of time. The polymers are prepared by a process involving various alternative and sequential steps that allow the design a priori of products with specific characteristics. The polymers are suitable as delivery systems, either by themselves, as compositions, formulations or devices.

L'invention concerne des polymères anhydrides libérant un ou des agent(s) actif(s) ou activable(s) doté(s) de propriétés présélectionnées, telles que poids moléculaire, souplesse, dureté, capacité d'adhésion et autres propriétés utiles. Lesdits polymères conviennent pour être utilisés dans des compositions, des formulations, des revêtements, des dispositifs et analogues bénéficiant de la libération contrôlée d'un ou de plusieurs agents(s) pendant une certaine durée. Ces polymères sont préparés au moyen d'un procédé impliquant des étapes variées alternatives et séquentielles permettant la conception à priori de produits dotés de caractéristiques spécifiques. Les polymères sont utilisés comme systèmes de distribution soit par eux-mêmes sous forme de compositions et de formulations soit par des dispositifs les utilisant.

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