Oral care whitening compositions

Patent metadata

Field	Value
Publication number	US-9931292-B2
Application number	US-201114366340-A
Country	US
Kind code	B2
Filing date	Dec 20, 2011
Priority date	Dec 20, 2011
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

Described herein are whitening compositions comprised of a peroxide component, and an adhesion system, which effectively provide whitening using a remarkably low level of peroxide. Methods of making and using these compositions are also described herein.

First claim

The invention claimed is:

1. A non-aqueous oral care composition comprising:
a peroxide component comprising a peroxide source in the amount of 0.05% to 0.15% of the total weight of the composition; and
40% to 80% of an adhesion system comprising:
a hydrophobic component comprising a silicone adhesive, a silicone fluid and a dental surface adhesion enhancing agent comprising crosslinked polyvinylpyrrolidone that is not complexed with a peroxide source;
wherein the composition when applied to the teeth is sufficiently viscous to form an adherent, continuous layer on a dental surface and deliver an effective amount of said peroxide source to a tooth surface
wherein the composition is substantially anhydrous.

2. The composition of claim 1 wherein the peroxide source is selected from the group consisting of hydrogen peroxide; urea peroxide, sodium percarbonate, sodium perborate; and a combination of two or more thereof.

3. The composition of claim 1 , wherein the peroxide component further comprises cross-linked polyvinylpyrrolidone, wherein the peroxide source is complexed with the cross-linked polyvinyl pyrrolidone.

4. The composition of claim 1 wherein the peroxide source is hydrogen peroxide.

5. The composition of claim 1 wherein the peroxide source is present in an amount from about 0.08% to about 0.12%, by weight of the composition.

6. The composition of claim 1 , wherein the peroxide source is present in the amount of about 0.1%, by weight of the composition.

7. The composition of claim 1 , wherein the silicone adhesive is a pressure sensitive silicone adhesive.

8. The composition of claim 7 , wherein the pressure sensitive silicone adhesive is a copolymer prepared by condensing a silicone resin with a dihydroxy polydiorganosiloxane.

9. The composition of claim 8 , wherein the dihydroxy polydiorganosiloxane is dihydroxy polydimethylsiloxane.

10. The composition of claim 1 , wherein the silicone resin is a silanol-containing silicone resin.

11. The composition of claim 1 , wherein the dental surface adhesion enhancing agent is present in an amount of about 15% to about 25%, by weight, of the composition.

12. The composition of claim 1 , wherein the dental surface adhesion enhancing agent is present in the amount of about 16% to about 20%, by weight, of the composition.

13. The composition of claim 1 , wherein the dental surface adhesion enhancing agent is present at a concentration of about 18%, by weight, of the composition.

14. A method for whitening a tooth comprising applying a composition of claim 1 to a tooth of a mammal.

15. The method of claim 14 , wherein the composition is applied using a pen.

16. The method of claim 14 , wherein the composition is maintained on the surface of the tooth for a plurality of minutes.

Assignees

• Boyd Thomas
• Ontumi Dennis
• Mandadi Prakasarao
• Chopra Suman
• Colgate Palmolive Co

Inventors

• Boyd Thomas
• Ontumi Dennis
• Mandadi Prakasarao
• Chopra Suman

Classifications

• A61C19/066

  Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips · CPC title

• A61K8/22 Primary

  Peroxides; Oxygen; Ozone · CPC title

• A61K8/892

  modified by a hydroxy group, e.g. dimethiconol · CPC title

• A61K2800/40

  Chemical, physico-chemical or functional or structural properties of particular ingredients · CPC title

• A61K8/92

  Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof · CPC title