Zinc oxide containing surfactant solution

a surfactant solution and zinc oxide technology, applied in detergent compounding agents, hair cosmetics, make-up, etc., can solve the problems of anionic surfactant irritation potential and no prior art related to the use of zinc oxide suspensions, and achieve the effects of less skin irritation potential, less skin irritation, and less erythematous reaction and skin barrier alteration

Inactive Publication Date: 2005-04-14
COLGATE PALMOLIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The addition of the zinc oxide particulates does not incur a detriment to grease cleaning efficacy of the liquid cleaning composition nor to the foaming properties of the finished product. The skin irritation potential of the finished is highly improved by the presence of the zinc oxide suspension in the product.
As compared to the same product without zinc oxide, the zinc oxide-containing product induces much less erythematous reaction and skin barrier alteration when the products are in contact with the skin for a long period. Benefits in terms of less skin drying and better respect of skin surface hydration are also expected when adding nanoparticles of zinc oxide in the product. Similar anti-irritant effects are also expected in any type of surfactant-based product.
One object of this invention is to provide a cleaning composition which exhibits decreased skin irritation potential.

Problems solved by technology

No prior art related to the use of zinc oxide suspensions in surfactant-based products to decrease the irritation potential of the anionic surfactant have been found.

Method used

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  • Zinc oxide containing surfactant solution
  • Zinc oxide containing surfactant solution
  • Zinc oxide containing surfactant solution

Examples

Experimental program
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examples

The following compositions in wt. % were prepared by simple mixing procedure. ZnO-350 is a white to pale yellow powder. The ZnO-350 powder is gently and homogeneously incorporated in the products at the end of the process.

Example 1Example 2Water10Linear alkyl benzene sulfonate Na salt3Sodium C14-17 alkyl secondary surfactant17.3Sodium C12-13 pareth sulfate8.7Euperlan PK900 + Euperlan PK 3000 (pearlizing7agents)(% v / v)Magnesium sulfate heptahydrate0.75NH4 C13-14 AEOS 2:1 EO11.6Linear alkyl benzene sulfonate Mg salt9Lauryl myristylamido propyl dimethyl amine5.5oxideAPG 62510.0Zinc oxide-350 particulates0.10.1Minors (dye, perfume, preservative)QSQSWaterBal.BalpH6.5-7.06.0-6.5Viscosity (Brookfield viscometer at 25° C.,4500spindle 5, 20 RPMS) cps

Such compositions remain clear and stable in the range of 15° C. to 35° C., especially 20° C. to 30° C. The liquid cleaning compositions exhibits a viscosity around 4500 centipoise (cps) as measured at 25° C. with a Brookfield RVT Viscometer ...

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Abstract

A cleaning composition for all purpose cleaners, light duty liquids, shampoos, foam baths, liquid hand soaps, fine fabric detergents, liquid skin cleansing products, dishware paste, dishware bars and shower gels which include at least one surfactant, zinc oxide having a particle size of 10 to 30 nm, and water.

Description

FIELD OF INVENTION This invention relates to the use of a zinc oxide suspension in a surfactant-based product to reduce its skin irritation potential and optimize its compatibility with the skin. The surfactant-based product may be a hand dishwashing liquid, a liquid skin cleanser, a shower gel, a bath foam, a shampoo, liquid skin cleansing products, hand liquid soaps, a fine fabric detergent, or any type of cleaning or cleansing product based on surfactants. The particularity of the zinc oxide suspension to decrease the skin irritation potential is to be highly effective even in already optimized surfactant-based product containing other types of counter-irritants such as amphoteric or nonionic secondary surfactants. BACKGROUND OF THE INVENTION The present invention relates to the use of zinc oxide particles in a shower gel, a bath foam, a shampoo, a liquid skin cleansing product, hand liquid soaps, a fine fabric detergent, light duty liquid detergent compositions with high foami...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K8/27A61K8/40A61K8/46A61Q5/02A61Q19/10
CPCA61K8/27C11D3/1213A61K8/463A61K8/466A61K2800/413A61K2800/596A61K2800/75A61Q5/02A61Q19/10B82Y5/00C11D1/146C11D1/22C11D1/662C11D1/75C11D1/83A61K8/40
Inventor PAYE, MARC
Owner COLGATE PALMOLIVE CO
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