Lipsticks

Details Lipsticks Lipsticks

Category

A - Human Necessities

Subcategory

61

Subsubcategory

K

IPC codes

A61K 8/02 (2006.01) A61Q 1/06 (2006.01) A61K 7/027 (1995.01)

Type

Patent

Patent number

CA 2144844

Description

The present invention relates to lipstick compositions which comprise thermodynamically association structures, preferably lamellar liquid crystals and/or reverse hexagonal liquid crystals, which are used to deliver polar solvent/moisturizers through a non-polar (lipophilic) medium. The association structures consist essentially of from about 3 % to about 96 % by weight, of polar solvent (e.g. glycerine) and from about 4 % to about 97 % of surfactant having a Krafft point at or below about ambient temperature.

Compositions pour rouge à lèvres comportant des structures d'association thermodynamiquement stables, de préférence des cristaux liquides lamellaires et/ou des cristaux liquides hexagonaux inverses, qui sont utilisées pour acheminer des hydratants ou solvants polaires à travers un milieu (lipophile) non polaire. Lesdites structures d'association contiennent pour l'essentiel environ 3 % à environ 96 % en poids de solvant polaire (par ex. de la glycérine) et environ 4 % à environ 97 % en poids de tensioactif ayant un point de Kraft égal ou inférieur à la température ambiante.

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