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US 11,453,598 B2Granted
Surface modified pigment
AssigneesColgate-Palmolive Company, Kobo Products, Inc.
InventorsYun Shao, David Schlossman, Neringa Kontrimiene, Ariel Haskel
Life of this patent
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Abstract
A composition comprising a pigment particle that is coated with a cationic material and isopropyl titanium tri-isostearate. The pigment particle can be included in a cleansing composition for deposition on a surface, such as skin.
Claims10
A method for preparing a body wash, shower gel, liquid hand soap or bar soap composition comprising a pigment particle pre-coated with Polyquaternium-67 and isopropyl titanium triisostearate, the method comprising the steps of:
- (a) preparing a pigment particle coated with Polyquaternium-67 and isopropyl titanium triisostearate, by:
- (i) dissolving the Polyquaternium-67 in water in a vessel to form a mixture;
- (ii) adding the pigment particle to the mixture in step (i);
- (iii) drying the mixture from step (ii);
- (iv) cooling the dried mixture;
- (v) sieving the mixture from step (iv) to remove agglomerate thereby producing a sieved powder;
- (vi) adding to the sieved powder a solution of isopropyl titanium triisostearate dissolved in a solvent;
- (vii) mixing or blending the solution from step (vi), and
- (viii) drying the mixed or blended solution to produce the coated pigment particle;
- and
- (b) combining the coated pigment particle with one or more components of the body wash, shower gel, liquid hand soap or bar soap selected from anionic surfactants, amphoteric surfactants, nonionic surfactants, suspending agents, oil and petrolatum.
8 more elements
Dependencies are inferred from the claim text.