Tooth-whitening compositions comprising silicone polymer and methods therefor

• US 7,118,732 B2
• Filed: 05/10/2004
• Issued: 10/10/2006
• Est. Priority Date: 05/10/2004
• Status: Active Grant

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Prencipe, Michael, Maitra, Prithwiraj, Ibrahim, Sayed, Chopra, Suman K., Pashkovski, Eugene
• Primary Examiner(s): Moore, Margaret G.
• Application Number:
  US10/842,154
• Publication Number:
  US 20050287084A1
• Time in Patent Office: 883 Days
• Field of Search: 424/49, 424/57
• US Class Current: 424/49
• 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 8/24 Phosphorous; Compounds thereof
• CPC Class Codes: A61K 8/29 Titanium; Compounds thereof
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61Q 11/00 Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses

Abstract

Tooth-imparting whiteness to fluids comprising a particulate whiteness-imparting particles such as hydroxyapatite and an organosiloxane polymer are disclosed. Methods of use of the fluids are also disclosed.

Claims

1. The method of imparting whiteness to a tooth, comprising applying to the tooth a whiteness-imparting amount of a fluid comprising hydroxyapatite particles and at least one organosiloxane polymer wherein the polymer has a Chemical Abstracts Service Registry Number of 248935-80-0.

2. The method of imparting whiteness to a tooth, comprising applying to the tooth a whiteness-imparting amount of a fluid comprising hydroxyapatite particles and at least one organosiloxane polymer wherein the polymer is of the formula

X—

[SiR¹R²—

O—

]_n-Z

wherein

R¹ and R² is each independently an alkyl, aryl, or alkoxy group comprising from 1 to about 40 carbons;

n is an integer of 1 to 200; and

X and Z are each an organic substituent, one or both of which confers hydrophilicity to the polymer.