| abstract |
Pickering emulsions, which are finely disperse systems of the water-in-oil or oil-in-water type, comprising n (1) an oil phase which contains a wax and/or an oil thickener, n (2) a water phase, n (3) at least one type of microfine particles which n a) have an average particle size of less than 200 nm, which n b) display both hydrophilic and lipophilic properties, i.e. which have amphiphilic character, and are dispersible both in water and in oil and which n c) have optionally been coated on the surface, n (4) at least one type of non-amphiphilic metal oxide pigments and n (5) at most 0.5% by weight of one or more emulsifiers. |