Topical composition, topical composition precursor, and...

A - Human Necessities – 61 – K

Patent

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Details

A61K 47/30 (2006.01) A61K 8/72 (2006.01)

Patent

CA 2457124

A topical composition is provided. The topical composition can be prepared by diluting a topical composition precursor with water and adding additional components, if desired. The topical composition precursor can be prepared by melt processing a hydrophobic polymer composition that includes repeating pyrrolidone/alkylene groups wherein the alkylene groups contain at least 10 carbon atoms, and a hydrophilic polymer composition including repeating carboxylic groups and/or repeating hydroxyl groups. A topical composition precursor and methods for manufacturing and using a topical composition are provided by the invention.

La présente invention se rapporte à une composition topique qu'on peut préparer par dilution d'un précurseur de composition topique avec de l'eau et par ajout de constituants additionnels, si nécessaire. Le précurseur de composition topique peut être préparé par un traitement à l'état fondu d'une composition de polymère hydrophobe contenant des groupes récurrents pyrrolidone/alkylène dans laquelle les groupes alkylène contiennent au moins 10 atomes de carbone et d'une composition de polymère hydrophile comprenant des groupes carboxyliques récurrents et/ou des groupes hydroxyle récurrents. Cette invention concerne également un précurseur de composition topique et des procédés de préparation et d'utilisation d'une composition topique.

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