Method of preparing a stable suspension of micronized solid...

B - Operations – Transporting – 01 – F

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B01F 3/12 (2006.01) A01N 25/04 (2006.01) B01F 3/08 (2006.01) B01F 17/00 (2006.01) B01J 13/00 (2006.01) B27K 5/02 (2006.01) C09B 67/20 (2006.01) C09B 67/42 (2006.01) C09D 17/00 (2006.01) C09K 3/14 (2006.01)

Patent

CA 1112537

ABSTRACT OF THE DISCLOSURE 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 parti- cles are ground in an oil phase in the presence of one or more dispersion aids capable ? rendering the surface of the parti- cles oleophilic and one or more sterically and/or electrosta- tically 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.

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