Cold-preparable, low-viscosity and prolonged-stability cosmetic emulsions
AssigneeGoldschmidt GmbH
InventorsPeter Hameyer, Jurgen Meyer, Gabriele Polak
Life of this patent
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Abstract
PEG-free, cold-preparable, prolonged-stability, low-viscosity, fine oil-in-water emulsions, their preparation from preferably clear oil phases or via preferably clear to transparent microemulsion-like concentrates, the corresponding oil phases or microemulsion-like concentrates and the use of the inventive emulsions for producing cosmetic, dermatological, pharmaceutical or industrial formulations, especially for the production of impregnating emulsions for wet wipes or for sprayable care emulsions are provided.
Claims21
A prolonged-stability, low-viscosity, fine oil-in-water emulsion comprising:
- A) an emulsifier mixture consisting of:
- a) at least one nonionic primary emulsifier, and
- b) at least one secondary emulsifier containing one or more acid functions;
- B) one or more cosurfactants;
- and
- C) one or more oils,
- with the proviso that the water phase content of the emulsions is ≧70% by weight based on overall emulsion.
An oil phase comprising:
- A) an emulsifier mixture consisting of:
- a) at least one nonionic primary emulsifier, and
- b) at least one secondary emulsifier containing one or more acid functions;
- B) one or more cosurfactants;
- C) one or more oils;
- and
- D) from ≧0 to <10% by weight, based on the overall oil phase, of one or more polar solubilizers.
A clear to transparent microemulsion-like concentrate comprising:
- A) an emulsifier mixture consisting of:
- a) at least one nonionic primary emulsifier, and
- b) at least one secondary emulsifier containing one or more acid functions;
- B) one or more cosurfactants;
- and
- C) one or more oils, with the proviso that the total water phase content of the microemulsion-like concentrates is from ≧10 to <70% by weight, based on the overall concentrate.
Dependencies are inferred from the claim text.