Single phase whitening dentifrice

Inactive Publication Date: 2007-03-29
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

Method used

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Examples

Experimental program
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Effect test

example 1

[0031] A single phase dentifrice was prepared by mixing the ingredients of Table 2. A peroxide incompatible silica abrasive is included at 12.44% and increases the cleaning and whitening benefits of the dentifrice. After aging the dentifrice for two weeks at approximately 49° C., the peroxide recovery was 77% of the initially present amount.

TABLE 2IngredientsWeight PercentageCross-linked polyvinyl pyrrolidone -16.50hydrogen peroxide complexPolyethylene Glycol / Ethylene Oxide Block30.00Copolymer (PLURAFLO ® L4370)Ethylene Oxide / Propylene Oxide Block25.00Copolymer (PLURAFLO ® L1220)Silicone fluid5.00Saccharin0.42Flavor1.20Tetrasodium pyrophosphate1.00Sodium tripolyphosphate7.00Sodium fluoride0.24Silica abrasive12.44Sodium lauryl sulfate1.20TOTAL100.00

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Abstract

The invention provides a single phase whitening dentifrice that includes (i) a whitening agent selected from the group consisting of hydrogen peroxide, a bound peroxide and a solid peroxide (ii) an abrasive and (iii) a substantially anhydrous orally acceptable carrier, for example, polyethylene glycol. The bound peroxide may be hydrogen peroxide and a polymer and/or any peroxide compound and a porous cross-linked polymer, such as polymers of polyvinyl pyrrolidone, polyacrylates, a polymethacrylates, and a polyitaconates. The solid peroxide may be sodium perborate or urea peroxide. The invention also provides methods of whitening the tooth surfaces by contacting the surface with the composition.

Description

BACKGROUND OF THE INVENTION [0001] 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 noticeable tooth discoloration. [0002] There are a variety of compositions described in the art for preventing or treating the discoloration of teeth. In particular...

Claims

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Application Information

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IPC IPC(8): A61K8/42A61K8/22
CPCA61K8/20A61K8/22A61K8/25A61K8/463A61K8/737A61Q11/00A61K8/8176A61K8/86A61K8/88A61K8/89A61K8/8152
Inventor CHOPRA, SUMAN K.ZAIDEL, LYNETTEPRENCIPE, MICHAEL
Owner COLGATE PALMOLIVE CO
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