A process for preparing a stable suspension of finely divided solid particles in the oil phase of an oil-in-water emulsion, such as a pigmented stain

摘要

The disclosure describes a method of preparing a stable suspension of micronized solid particles in the oil phase of an oil-in-water emulsion. The micronized solid particles are ground in an oil phase in the presence of one or more dispersion aids capable ? rendering the surface of the particles oleophilic and one or more sterically and/or electrostatically stabilizing dispersion agents to form a stabilized suspension. Then the suspension is emulsified in an aqueous medium in the presence of one or more emulsifiers of a type that does not affect the stability of the oil phase produced by the dispersion agent or agents and dispersion aid or aids. In this manner there is obtained, as far as stains are concerned, a product having good penetration ability and good protective effect.