Zinc oxide dispersions

Details Zinc oxide dispersions Zinc oxide dispersions

C - Chemistry, Metallurgy

01

G

C01G 9/02 (2006.01) A61K 8/04 (2006.01) A61K 8/11 (2006.01) A61K 8/25 (2006.01) A61K 8/27 (2006.01) A61K 8/73 (2006.01) A61K 8/86 (2006.01) A61Q 17/04 (2006.01) C09C 1/04 (2006.01) C09C 3/06 (2006.01)

Patent

CA 2212753

A stabilised aqueous dispersion of particulate zinc oxide comprises water, a stabilising agent and zinc oxide, the particles of which are coated with dense amorphous silica. Useful stabilising agents include cellulose ethers which contain quaternary ammonium groups and polyalkylene glycols. The dispersions have excellent stability at high concentrations of zinc oxide and are useful for preparing sunscreen formulations, cosmetics and veterinary products.

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