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Oral Care Compositions with Increased Whitening Efficacy

a technology of oral care and compositions, applied in the field of oral care compositions with increased whitening efficacy, can solve the problem of yellow stains reappearing eventually

Active Publication Date: 2018-05-03
COLGATE PALMOLIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent is about a dual-phase mouthwash composition that includes a hydrophilic phase and a hydrophobic phase, a blue dye and / or blue pigment, and a zinc salt. The blue dye and / or blue pigment can be dispersed in either the hydrophobic or hydrophilic phase. The composition can also include other ingredients such as a fluoride ion source, an antibacterial agent, and a hydrotrope. The technical effect of this patent is to provide a mouthwash that effectively whitens teeth by using a blue dye and / or blue pigment in a dual-phase composition that includes a zinc salt.

Problems solved by technology

While these oral care products provide effective whitening after only a single use, the blue dye and / or the blue pigment may only remain deposited on the teeth for a limited duration, thereby allowing the yellow stains to eventually reappear.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

examples

[0091]Four mouthwashes were prepared by combining the ingredients / components according to Table 1. Particularly, the following mouthwashes were prepared: (1) a single phase mouthwash including 0.0014 wt % CI Food Blue 5 and 0.087 wt % Zn; (2) a dual-phase mouthwash including 0.0040 wt % CI Food Blue 5 and 0.00 wt % Zn; (3) a dual-phase mouthwash including 0.0014 wt % CI Food Blue 5, 0.00 wt % Zn, and 1.80 wt % polyphosphates; and (4) a dual-phase mouthwash including the oral care composition according to the present disclosure including 0.0014 wt % CI Food Blue 5 and 0.280 wt % Zinc L-lactate Dihydrate (about 0.066 wt % Zn).

TABLE 1Compositions of Mouthwashes in Table 1(1)(3)Single-Dual-Phase(4)Phase(2)MouthwashDual-PhaseMouthwashDual-PhasewithMouthwashwith ZnMouthwashPolyphosphateswith ZnIngredient(Wt. %)(Wt. %)(Wt. %)(Wt. %)Water76.78679.07066.59278.799Orally Acceptable Hydrophobic—12.00012.25012.200LiquidsHydrotrope7.5007.4967.5007.500Flavoring Agents5.6701.1806.3500.940Humectants...

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Abstract

A dual-phase mouthwash composition for whitening teeth is disclosed. The dual-phase mouthwash composition includes an orally acceptable vehicle having a hydrophilic phase and a hydrophobic phase, a blue dye and / or blue pigment having a blue to blue-violet color with a hue angle in the CIELAB system from about 200 to about 320 degrees, and a zinc salt.

Description

BACKGROUND[0001]As is known in the art, the visual perception of a white substance can be altered through the deposition of a blue pigment and / or a blue dye. This effect is commonly used in laundry detergent products to make white clothes appear “whiter” to the human eye. This effect has also been applied to oral care products (e.g., toothpastes). For example, the blue dye and / or the blue pigment added to the oral care products may be deposited onto teeth, thereby allowing the off-white and / or yellow color of the teeth to appear whiter to the human eye.[0002]While these oral care products provide effective whitening after only a single use, the blue dye and / or the blue pigment may only remain deposited on the teeth for a limited duration, thereby allowing the yellow stains to eventually reappear. Increasing the relative concentration of blue dye and / or blue pigment delivered to the teeth may increase the duration of deposition on the teeth and / or improve the perceived whiteness of t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K8/362A61K8/36A61K8/92A61K8/21A61K8/49A61Q11/00
CPCA61K8/362A61K8/36A61K8/92A61K8/27A61K8/4926A61Q11/00A61K2800/43A61K8/21A61K8/03
Inventor SIMON, ERICPORTER-MALONEY, VENDAPATEL, VYOMA
Owner COLGATE PALMOLIVE CO
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