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 triisostearate. The pigment particle can be included in a cleansing composition for deposition on a surface, such as skin.
Claims24
1-14. (canceled)
A method for preparing a body wash, shower gel, liquid hand soap or bar soap composition comprising a pigment particle pre-coated with a cationic material and isopropyl titanium triisostearate, the method comprising the steps of:
- (a) preparing a pigment particle coated with a cationic material and isopropyl titanium triisostearate, by:
- (i) dissolving the cationic material 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.
The method of claim 19, wherein the dissolving in step (i) is accomplished with heating.
The method of claim 19, wherein the drying in step (iii) is performed by heating.
The method of claim 21, wherein the heating is at approximately 105° C. for approximately 3 hours.
The method of claim 19, wherein step (iv) further comprises gently chopping the dried mixture.
The method of claim 27, wherein step (viii) further comprises cooling the mixed or blended solution and gently chopping the cooled product.
A method for preparing a body wash, shower gel, liquid hand soap or bar soap composition comprising a pigment particle pre-coated with a cationic material and isopropyl titanium triisostearate, the method comprising the steps of:
- (a) preparing a pigment particle coated with a cationic material and isopropyl titanium triisostearate, by:
- (i) providing a solution of isopropyl titanium triisostearate dissolved in a solvent;
- (ii) adding the pigment particle to the mixture in step (i);
- (iii) mixing or blending the solution from step (ii);
- (iv) drying and then cooling the mixture from step (iii) to produce an isopropyl titanium triisostearate coated pigment particle;
- (v) adding the isopropyl titanium triisostearate coated pigment particle to a solution of a cationic material dissolved in water to form a mixture;
- (vi) drying the mixture from step (v);
- (vii) sieving the dried mixture from step (vi) to remove agglomerate thereby producing the pigment particle coated with the cationic material and isopropyl titanium triisostearate;
- and
- (b) combining the pigment particle coated with the cationic material and isopropyl titanium triisostearate 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.
The method of claim 32, wherein the solvent in step (i) is ISOPAR C solvent, added in a ratio of 1:2.
The method of claim 32, wherein the drying in step (iv) is performed by heating at approximately 85° C. for approximately 1 hour.
The method of claim 32, wherein step (iv) further comprises gently chopping the dried and cooled mixture.
The method of claim 32, wherein the drying in step (vi) is performed by heating at approximately 105° C. for approximately 3 hours.
The method of claim 36, wherein step (vi) further comprises cooling and gently chopping the dried mixture.
Dependencies are inferred from the claim text.