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US 9,168,211 B2Granted
Method of making an anhydrous, pigmented composition
AssigneeJohnson & Johnson Consumer Inc.
InventorsLuna Fascina, Danielle Lima Lorenzetti, Maria Emilia de Oliveira Brenha Ribeiro, Rodrigo Collina Romanhole
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Abstract
The invention relates to a method of making an anhydrous, pigmented sunscreen composition. The method comprises first adding a hydrophobic silica to a lipid phase comprising a dispersed color pigment and an organic UV-filter and homogenizing the mixture. Next, a hydrophilic silica is added and re-homogenization is performed.
Claims6
A method of making an anhydrous, pigmented sunscreen composition, comprising in sequence:
- adding a hydrophobic silica to a lipid phase comprising a dispersed color pigment and an organic UV-filter;
- homogenizing the lipid phase comprising the hydrophobic silica by rotary mixing at a rotation speed of at least 1000 rpm;
- adding a hydrophilic silica to the lipid phase comprising hydrophobic silica;
- and
- re-homogenizing the lipid phase comprising the hydrophobic silica and the hydrophilic silica by rotary mixing at a rotation speed of at least 1000 rpm.
2 more elements
Dependencies are inferred from the claim text.