Process for producing cosmetic and pharmaceutical formulations, and products comprising same
AssigneeDragoco Gerberding & Co. AG
InventorsJürgen Vollhardt, Nisha Malkan, Robert P. Manzo
Life of this patent
Estimating the term…
Abstract
Cosmetic or pharmaceutical formulations such as (a) anhydrous cosmetic stick formulations and (b) anhydrous aerosol spray formulations, comprising an organic dispersion medium having particles dispersed therein, which particles are preferably prepared by a process comprising spray-drying a mixture of liposome encapsulated active agent, modified starch, and optionally a hydrocolloid gum such as maltodextrin.
Claims15
A cosmetic or pharmaceutical product comprising:
- an anhydrous solid or liquid dispersion medium, and
- about 0.01-20 weight percent, based upon the total weight of said product, of solid particles dispersed in said anhydrous dispersion medium, said solid particles comprising a) (i) at least one of octylsuccinylated starch and (ii) enzymatic modified starch, b) liposomes encapsulating a biologically active agent, and, optionally, c) a hydrocolloid gum.
A cosmetic or pharmaceutical product formed by a process comprising
- (a) incorporating a biologically active agent into liposomes
- (b) forming an aqueous mixture of active agent encapsulating liposomes, starch and, optionally, a hydrocolloid gum,
- (c) spray drying said mixture to form a dry powder composition,
- (d) dispersing said dry powder composition into an anhydrous dispersion medium.
A solid cosmetic or pharmaceutical product formed by a process comprising
- (a) incorporating a biologically active agent into liposomes
- (b) forming an aqueous mixture of active agent encapsulating liposomes, starch and, optionally, a hydrocolloid gum,
- (c) spray drying said mixture to form a dry powder composition,
- (d) dispersing said dry powder composition into an anhydrous solid lipophilic cosmetic matrix, and
- (e) shaping the product of step (d).
A cosmetic or pharmaceutical aerosol spray formulation formed by a process comprising
- (a) incorporating a biologically active agent into liposomes
- (b) forming an aqueous mixture of active agent encapsulating liposomes, starch and, optionally, a hydrocolloid gum,
- (c) spray drying said mixture to form a dry powder composition,
- (d) dispersing said dry powder composition into an anhydrous liquid dispersion medium.
An essentially anhydrous cosmetic or pharmaceutical product comprising:
- a lipophilic, anhydrous dispersion medium, and
- about 0.01-20 weight percent, based upon the total weight of said product, of particles homogeneously dispersed in said dispersion medium, said particles comprising liposome microcapsules containing active agent incorporated in a particle forming matrix of a water absorbent component.
Dependencies are inferred from the claim text.