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Composition containing superabsorbent polymers

a polymer and super absorbent technology, applied in detergent compositions, make-up, cosmetics, etc., can solve the problems of not being homogeneous, not always practical to use, and spreading over the skin in packets, so as to achieve good foam and spread quality

Inactive Publication Date: 2008-05-08
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes the discovery of a way to make a thick foaming product with good cosmetic properties. This is done by using a superabsorbent polymer in the form of particles, which swell in water and generate viscosity by compact stacking. When applied, the polymer releases due to the effect of the shear and generates foam. This is different from previous methods that involve solid compositions. The new method results in a flexible gel with good foaming properties.

Problems solved by technology

Some consumers complain that foaming products containing soaps cause tautness due to them being too detergent.
The cleansing products not containing soaps which are currently on the market generally have a low viscosity and, as a result, are not always practical to use because they have a tendency to run.
However, when the percentage of these thickening compounds is increased so as to have a thicker composition, this brings about drawbacks.
Thus, when the percentage of oxyethylenated compounds is increased, the spreading over the skin occurs in packets and is not homogeneous.
When the percentage of acrylic polymer is increased, the products obtained can be viscous, but result in a mediocre beginning of lathering.
Moreover, the addition of too high percentage of gum causes the start of lathering to be impaired and affects the qualities of the foam.
It is therefore difficult to thicken foaming media while at the same time conserving the required properties, i.e. good mixing with water and a rapid conversion to foam, and homogeneous spreading when applied to the skin.

Method used

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  • Composition containing superabsorbent polymers
  • Composition containing superabsorbent polymers

Examples

Experimental program
Comparison scheme
Effect test

examples 1 to 4

According to the Invention

[0096]

Composition (% SM)Ex. 1Ex. 2Ex. 3Ex. 4C12-C16 Alkyl17.1617.1617.1617.16polyglucoside (1)(A.M.(A.M.(A.M.(A.M.8.58%)8.58%)8.58%)8.58%)Lauryldimethyl betaine (2)13131313(A.M.(A.M.(A.M.(A.M.3.9%)3.9%)3.9%)3.9%)Crosslinked sodium2polyacrylate (3)Starch modified with2crosslinked acrylamide / -sodium acrylate (4)Starch / guar gum / sodium4carboxymethylcellulose (5)Starch modified with2crosslinkedacrylamide / sodiumacrylate (6)Dimethyldiallylammonium / -2.87acrylamide copolymer (7)(A.M.0.249%)Citric acidqs pH 7qs pH 7qs pH 7qs pH 7Waterqsqsqsqs100%100%100%100%AppearanceTranslucentTranslucent,TranslucentTranslucentfrostyViscosity at 20° C.(rheometer Rheo RS150 0.1 s−1)40 Pa · s270 Pa · s500 Pa · s300 Pa · s

(1) Plantacare 818 UP at 50% of A.M.

(2) Empigen BB / LS at 30% of A.M.

(3) Luquasorb 1010 (BASF)

(4) Waterlock C200 (Grain Processing)

(5) Lysorb 220 (Lysorb)

(6) Waterlock A100 (Grain Processing)

(7) Merquat S (Nalco) or polyquaternium-7 at 8.7% of A.M.

[0097] Procedu...

example 7

According to the Invention

[0118]

Example 7according to theComposition (% SM)inventionC12-C16 Alkylpolyglucoside (1)24.53%Crosslinked sodium polyacrylate (2)   2%Polyaminopropyl biguanide (3) 0.5%Citric acidqs pH 6.5Waterqs 100%Stability after 2 months at allstabletemperatures

(1) Plantacare 818 UP 50% AM

(2) Luquasorb 1010 (BASF)

(3) Cosmocil CQ 20% AM

[0119] The above written description of the invention provides a manner and process of making and using it such that any person skilled in this art is enabled to make and use the same, this enablement being provided in particular for the subject matter of the appended claims, which make up a part of the original description and including a cleansing composition for topical application, in the form of a gel and containing, in a physiologically acceptable aqueous medium, at least 35% by weight of water relative to the total weight of the composition, at least one foaming surfactant chosen from nonionic surfactants and amphoteric surfactan...

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Abstract

Composition in the form of a gel containing at least 35% by weight of water, at least one foaming surfactant chosen from nonionic or amphoteric surfactants, and at least one superabsorbent polymer. The superabsorbent polymer helps to thicken the composition without affecting its cosmetic properties.

Description

REFERENCE TO PRIOR APPLICATIONS [0001] This application claims priority to U.S. provisional application 60 / 850,630 filed Oct. 11, 2006, and to French patent application 0654074 filed Oct. 4, 2006, both incorporated herein by reference.FIELD OF THE INVENTION [0002] The invention relates to a cleansing composition, preferably in the form of a gel, comprising a superabsorbent polymer, and to uses thereof in, e.g., the cosmetics or dermatological fields, in particular as a cleansing or makeup-removing product for the skin, the hair, including the scalp, and / or the mucous membranes (lips). [0003] Additional advantages and other features of the present invention will be set forth in part in the description that follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from the practice of the present invention. The advantages of the present invention may be realized and obtained as particularly pointed out in the...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K8/02A61Q5/02A61Q19/10
CPCA61K8/042A61K8/44A61K8/60A61K8/604A61K8/73A61K8/731A61Q19/10A61K8/8147A61K8/8152A61K8/8158A61K2800/54A61Q1/14A61K8/732
Inventor BERNARD, ANNE-LAUREAUBRUN-SONNEVILLE, ODILELEROY, LAURENCE
Owner LOREAL SA