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US 6,280,765 B1Granted
Pharmaceutical, cosmetic or dermo-pharmaceutical patch for the delivery of several active compounds of different nature
AssigneeL'oreal
InventorJean-Louis H. Gueret
Life of this patent
Estimating the term…
Abstract
Patch comprising a hydrophobic polymer layer bound to a support layer and containing: a) first particles of at least one water-soluble active compound, b) second particles of oil, c) at least one liposoluble active compound, d) third particles of a water-absorbing agent all of which are dispersed homogeneously in the polymer layer. This patch allows the packaging and controlled administration of an assembly of skin-nourishing and/or skin-repairing substances of different nature, and also has excellent adhesive power on the skin.
Claims24
A patch comprising a hydrophobic polymer layer attached to a support layer, the polymer layer containing:
- a) first solid particles of at least one water-soluble active compound,
- b) second particles of at least one oil,
- c) at least one liposoluble active compound, and
- d) third solid particles of a water-absorbing agent, all dispersed homogeneously in the polymer layer.
1 more element
Dependencies are inferred from the claim text.