Oral care composition with cross-linked polymer peroxide

a technology of oral care and polymer peroxide, applied in the field of oral care compositions and methods, can solve the problems of cosmetically unattractive, unfavorable teeth cleaning, and inability to clean teeth,

Inactive Publication Date: 2006-03-02
COLGATE PALMOLIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many individuals desire a “bright” smile and white teeth and consider dull and stained teeth cosmetically unattractive.
Unfortunately, without preventive or remedial measures, stained teeth are almost inevitable due to the absorbent nature of dental material.
Everyday activities such as smoking or other oral use of tobacco products, and eating, chewing or drinking certain foods and beverages (in particular coffee, tea and red wine), cause undesirable staining of surfaces of teeth.
Even with regular brushing and flossing, years of chromogen accumulation can impart noticea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 2

[0105] A composition of the present invention is made, as follows:

IngredientsWeight %cPVP-H2O2 powder10sodium percarbonate25DC Silicone Fluid-350CST16.55(Dimethylsiloxane)DC 8-7016 Fluid (Silicone Adhesive)30sodium saccharin1Pluracare L-122016.55Plastigel 50.3mint flavor0.6Total (%)100

[0106] The composition is made by a process generally as described above in Example 1.

example 3

[0107] A compositions of the present invention is made as follows.

IngredientsWeight %cPVP-H2O2 powder2535% hydrogen peroxide12.14DC Silicone Fluid-350CST15.96(Dimethylsiloxane)DC 8-7016 Fluid (Silicone30Adhesive)sodium saccharin0.3Pluracare L-12201Plastigel 515mint flavor0.6Total -(%)100

[0108] The composition is made by a process generally as described above in Example 1. The composition is subjected to accelerated aging conditions (105° F. / 120° F.) for several weeks, and remains stable with more than 90% of the peroxide remaining.

[0109] The whitening efficacy of the composition is determined using a duplicate pair of flow cells designed to accommodate a total of eight bovine enamel blocks (four in each cell). The bovine enamel blocks are obtained freshly stained using an established staining protocol (Indiana University, Indianapolis, Ind.). The initial L*, a* and b* values are matched as closely as possible prior to an experiment using a chromometer (Minolta CR-321) based on in...

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Abstract

Oral care compositions comprising: (a) a peroxide complex comprising a peroxide component and an N-vinyl heterocyclic polymer (e.g., poly-N-vinyl polylactam, or poly-N-vinyl-polyimide); (b) a whitening agent (e.g., hydrogen peroxide); and (c) an orally acceptable carrier. In one embodiment, the carrier comprises a film forming material. Methods are also provided for making an oral care composition comprising: (a) mixing a whitening agent, silicone adhesive and carrier fluid to form a homogenous mixture; (b) adding a peroxide complex to said homogenous mixture, wherein said complex comprises hydrogen peroxide and an N-vinyl heterocyclic polymer; and (c) mixing under vacuum.

Description

INTRODUCTION [0001] The present invention relates to oral care compositions and methods. In particular, the present invention includes compositions and methods for whitening of teeth. [0002] Many individuals desire a “bright” smile and white teeth and consider dull and stained teeth cosmetically unattractive. Unfortunately, without preventive or remedial measures, stained teeth are almost inevitable due to the absorbent nature of dental material. Everyday activities such as smoking or other oral use of tobacco products, and eating, chewing or drinking certain foods and beverages (in particular coffee, tea and red wine), cause undesirable staining of surfaces of teeth. Staining can also result from microbial activity, including that associated with dental plaque. The chromogens or color causing substances in these materials become part of the pellicle layer and can permeate the enamel layer. Even with regular brushing and flossing, years of chromogen accumulation can impart noticeabl...

Claims

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Application Information

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IPC IPC(8): A61K8/22
CPCA61K8/0208A61K8/22A61Q11/02A61K8/8176A61Q11/00A61K8/817A61K8/24A61K8/90A61K8/49A61K8/891A61K2800/805
Inventor ZAIDEL, LYNETTEPAN, GUISHENGCHOPRA, SUMAN K.MANDADI, PRAKASARAOPRENCIPE, MICHAEL
Owner COLGATE PALMOLIVE CO
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