Body powder comprising colorant

• US 5,460,805 A
• Filed: 10/29/1993
• Issued: 10/24/1995
• Est. Priority Date: 10/29/1993
• Status: Expired due to Fees

• Current Assignee: 3M Company, Dale A. Bjorkman
• Original Assignee: 3M Company
• Inventors: Davis, Robert A., Nichols, Sheila M., Buttery, Howard J.
• Primary Examiner(s): Bleutge, John C.
• Assistant Examiner(s): Hulina, Amy
• Application Number:
  US08/145,787
• Time in Patent Office: 725 Days
• Field of Search: 424/69, 424/401, 424/63, 424/489, 424/501
• US Class Current: 424/69
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/43 Pigments; Dyes
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61Q 1/12 Face or body powders for grooming, adorning or absorbing

Abstract

Body powder is provided having microcapsules with a colorant located in or on the shell of said microcapsule. The microcapsules are present in an amount effective to impart color to the body powder when viewed in bulk and to substantially decrease in perceptible color upon rubbing said body powder on the skin.

Claims

1. Body powder for application to skin comprising microcapsules having a colorant located in or on the shell wall of said microcapsule, said microcapsules being present in an amount effective to impart the color of said colorant to the body powder when viewed in bulk and to substantially decrease in perceptible color of said colorant upon rubbing said body powder on the skin.

2. The powder of claim 1, wherein said microcapsules are 2 to 60% by weight of the body powder.

3. The powder of claim 1, wherein said microcapsules are 5 to 40% by weight of the body powder.

4. The powder of claim 1, wherein the predominant non-microcapsule component of said powder is talc.

5. The powder of claim 1, wherein the predominant non-microcapsule component of said powder is natural or synthetic mica.

6. The powder of claim 1, wherein the predominant non-microcapsule component of said powder is starch.

7. The powder of claim 6, wherein said starch is selected from the group consisting of corn, sago, rice, potato, corn and tapioca starches.

8. The powder of claim 6, wherein said starch is corn starch.

9. The powder of claim 1, wherein the microcapsules are aminoplast resin microcapsules.

10. The powder of claim 1, wherein the microcapsule is prepared by interfacial polycondensation.

11. The powder of claim 1, wherein the microcapsule is prepared by a coacervation process.

12. The powder of claim 1, said powder having an SCL value greater than 10.

13. The powder of claim 1, said powder having an SCL value greater than 15.

14. The powder of claim 1, said powder having a Δ

E*ab_skin less than 20.

15. The powder of claim 1, said powder having a Δ

E*ab_skin less than 5.

16. The powder of claim 1, said powder having a Δ

E*ab_skin less than 4.