Dispersions

Details Dispersions Dispersions

C - Chemistry, Metallurgy

01

G

167/314

C01G 23/047 (2006.01) C09C 1/36 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2004112

An aqueous dispersion of acicular fine particle size titanium dioxide containing from 20 to 60% by weight solids content and a polycarboxylic dispersant is of outstanding use in the preparation of sun screens. The dispersions are transparent to visible light and absorbant to UV light of broad spectrum. Usually the titanium dioxide has a largest dimension within the range 0.01 to 0.15 micron. The dispersions are produced by milling, preferably in a high speed mill, until the required UV absorbancy is attained.

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