JP2006241151A - Make up remover cosmetic composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a make up remover product not only mild to the skin but also having improved detergent efficiency. <P>SOLUTION: The make up remover composition contains 0.5-40 wt% total polyol and 0.5-20 wt% triisostearate ester of glycerol in an aqueous medium. Especially, a combination comprising an alkoxylated ester, especially PEG-20 glycerol triisostearate and POE sorbitan monolaurate, isoprene glycol, glycerol and a polyethylene glycol is useful. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a make-up removal cosmetic composition having improved efficacy.

  An important segment of the cosmetics market is the products used for make-up removal. Removal of eyeshadow, blusher, lipstick and funny pigments is a daily problem for many women. This problem has been addressed by formulations that can include materials that function by solvent action or by emulsification.

  Cold cream is particularly outstanding in this utility. Exemplary embodiments of this technique are both reported in US Pat. No. 5,160,739 and US Pat. No. 5,798,111 to Kanga et al. The problem with traditional cold cream is that it is relatively oily and highly viscous.

  Another approach is a product reinforced with a large amount of foaming surfactant. In particular, they contain a significant amount of anionic surfactant. Some products are provided in the form of aerosols. An example of this technique is Japanese Patent Application No. 2002-157119 (Kashimura et al.). It discloses a combination of a talc-supported phosphate ester surfactant and an alkyl polyglycoside surfactant in the form of a propellant-driven aerosol. Systems containing large amounts of anionic surfactant are very effective for cleaning, but they lack mildness to the skin.

  Thus, the problem addressed by the present invention is to provide a makeup removal product that is not only mild to the skin, but also has improved cleaning efficacy.

A makeup remover cosmetic composition comprising the following is provided:
(I) 0.5-40% polyol;
(Ii) 0.5-20% triisostearate ester of glycerol; and (iii) water.

  It has now been found that the combination of glycerol triisostearate ester and one or more polyols allows excellent make-up removal and is also mild to the skin.

  The compositions of the present invention are usually oil and water emulsions, particularly emulsions having a water continuous phase. The amount of water may range from about 0.5 to about 99%, preferably from about 30 to about 95%, and optimally from about 35 to about 60% by weight of the composition. The relative amounts of aqueous phase and oil phase of the emulsions of the present invention are from about 99: 1 to about 1: 5, preferably from about 20: 1 to about 1: 2, most preferably from about 5: 1 to about 1: by weight. It may be in the range of 1.

  A polyol will be present in the composition of the present invention. These polyols may be monomers or polymers. Monomeric polyols can have 1 to 20 carbon atoms and 2 to 10 hydroxyls. Exemplary monomeric polyols include propylene glycol, glycerol, 1,4-butanediol, 1,3-butanediol, 1,2-butanediol, 1-6-hexanediol, 1,2-hexanediol, 3 -Methyl-1,3-butanediol, 2-methyl-1,3-propanediol, sorbitol and mixtures thereof. Glycerin (also known as glycerol) is particularly preferred.

  Polymer polyols are exemplified by polypropylene glycol, polyethylene glycol, dipropylene glycol, diglycerol, polyglycerol, trimethylene glycol, dipentaerythritol and combinations thereof. Dipropylene glycol and polyethylene glycol are particularly preferred, the latter having a molecular weight in the range of about 200 to about 5000, preferably about 300 to about 1000.

  Each amount of polyol may range from about 0.5 to about 40%, preferably from about 2 to about 25%, optimally from about 10 to about 25% by weight of the composition.

An important component of the present invention is that of the triisostearate ester of glycerol. Advantageously, the ester is an alkoxylated ester containing from 1 to about 50, preferably from about 5 to about 40, more preferably from about 15 to about 30, and optimally about 20 moles of alkoxylate monomer per glycerol. is there. Usually, alkoxylate monomers _are C 2 -C ₅ alkyl diols. These include ethylene glycol, propylene glycol, butylene glycol and mixtures thereof. The mixture may be a random copolymer or a block copolymer. For exemplary purposes only, suitable esters include POE-20 glyceryl triisostearate, POE-15 glyceryl triisostearate, POE-10 glyceryl triisostearate, POE-5 glyceryl triisostearate, POP- 20 glyceryl triisostearate, POP-15 glyceryl triisostearate, POP-5 glyceryl triisostearate, POE-POP-10,10-glyceryl triisostearate, POE-POP-5,10-glyceryl triiso Stearate and mixtures thereof are included. The terms POE and POP are shorthand for polyoxyethylene and polyoxypropylene. For example, POE-POP-10,10-glyceryl triisostearate indicates that 10 moles of ethylene oxide and 10 moles of polypropylene oxide have been polymerized in the glyceryl triisostearate ester. POE-20 glyceryl triisostearate is most preferred for the present invention. This material is sold by Nippon Oil & Fat Company and is available under the trademark UNIOX GT-20IS.

  The amount of glycerol triisostearate ester used in the present invention is about 0.5 to about 20%, preferably about 2 to about 10%, optimally about 5 to about 10% by weight of the composition. It would be a range.

  Various nonionic and amphoteric emulsifiers can be used as further components in the present case. Usually nonionic emulsifiers are based on hydrophobic substance units such as fatty alcohols or fatty acids having from about 10 to about 22 carbon atoms, alkylphenols having from about 6 to about 12 carbon atoms in the alkyl chain, sorbitan and mixtures thereof. ing. Usually these hydrophobic materials will be condensed with hydrophilic units, especially 1 to about 50, preferably about 10 to about 30 moles of ethylene oxide, propylene oxide, butylene oxide or mixtures thereof. Exemplary materials include POE-20 sorbitan monolaurate, POE-30 sorbitan tetraoleate, POE-20 cetyl ether, POE-7 glyceryl cocoate, POE-15 stearyl ether, POE-10 stearyl ether, POE-15 palmityl ether and That combination. Other useful nonionic materials are alkyl polyglycosides such as decyl polyglucose available from Henkel. Another class of nonionic emulsifiers are long chain tertiary amine oxides. Examples include dimethyl dodecyl amine oxide, dimethyl hexadecyl amine oxide, di (2-hydroxy) tetradecyl amine oxide, dimethyl decyl amine oxide and combinations thereof.

  Amphoteric emulsifiers such as betaine and sultain can also be used. Suitable examples include cocoamidopropyl betaine, cocoamido sultain, dodecyl dimethyl betaine, cetyl dimethyl betaine, and combinations thereof.

  The amount of nonionic or amphoteric emulsifier can each range from about 0.1 to about 40%, preferably from about 1 to about 30%, optimally from about 10 to about 20% by weight of the composition. .

  A skin benefit agent can also be included in the composition. One class is fatty acids and fatty alcohols having 10 to 22 carbon atoms. Suitable examples include stearyl alcohol, cetyl alcohol, isostearyl alcohol, lauryl alcohol, myristyl alcohol, palmityl alcohol, oleyl alcohol, behenyl alcohol and mixtures thereof. Fatty acids are represented by stearic acid, isosteric acid, lauric acid, myristic acid, palmitic acid, oleic acid, and behenic acid. The amount of these materials can range from about 0.1 to about 20%, preferably from about 0.5 to about 10%, optimally from about 2 to about 8% by weight of the composition.

  In general, anionic emulsifiers will not be included in the compositions of the present invention. These compositions are not intended to foam. Thus, the amount of anionic emulsifier present is in the range of 0 to 5%, preferably 0 to 2%, more preferably 0 to 1% by weight of the composition, even if present, more optimally 0. Present at less than 5% by weight.

  The oily phase of the emulsion composition according to the invention can comprise natural and synthetic esters, hydrocarbons and silicone oils. The amount of each of these materials ranges from about 0.01 to about 20%, preferably from about 0.1 to about 10%, optimally from about 0.5 to about 5% by weight of the composition. It's okay.

  Silicone oils can be volatile or non-volatile. Volatile silicone oils are cyclic or linear polydimethylsiloxanes generally containing 3 to 9, preferably 4 to 5, silicon atoms. The linear type is known by the CTFA name dimethicone, while the cyclic type is known as cyclomethicone. The latter is commercially available from Dow Corning under the trademarks DC244, DC245, DC344 and DC345. In Japan they are available from Dow Corning Toray under the trademark SH-245.

  Non-volatile silicone oils are exemplified by polyalkyl siloxanes, polyalkylaryl siloxanes and polyether siloxane copolymers. Examples of polydimethylsiloxane are commercially available from Dow Corning under the DC200 series. Polyalkylsiloxanes are available from General Electric Company under trademarks such as SF 1075 methylphenyl fluid. Useful polyether siloxane copolymers are available from General Electric under the SF-1066 trademark.

  Synthetic esters useful in the present invention are often derived from fatty alcohols and / or fatty acids. Exemplary materials are isotridecyl isononanoate, tri (2-ethylhexanoate), isopropyl myristate, isostearyl isostearate, capric / capric triglyceride, and combinations thereof. Plant-derived esters useful in the present invention include sunflower seed oil, safflower oil, cottonseed oil, soybean oil, rice bran oil, sterols and combinations thereof.

  Hydrocarbons suitable for the present invention include mineral oil, isoparaffins, and polyalphaolefins (such as those available under the trademark Permethyl 99A or 101), and polyisobutene.

  The compositions of the present invention will often require thickeners or thickeners. These materials can be present in an amount of about 0.001 to about 10% by weight, preferably about 0.01 to about 5% by weight, optimally about 0.1 to about 0.5% by weight. Exemplary materials are gums such as xanthan, carrageenan, guar, pectin, sodium carboxymethylcellulose, hydroxyalkylcellulose and alkylcellulose, and any combination thereof. Useful polymeric thickeners include cross-linked acrylic acid polymers or cross-linked methacrylic acid polymers such as those sold by Noveon under the trademark Carbopol. Emulsifier / thickener combinations can also be utilized and are exemplified by materials such as Pemulen TR2®.

  The compositions of the present invention may require opacifiers and / or opacifiers in certain instances. Particularly useful for this purpose are methylenes coated with ethylene glycol distearate (eg Miracare OP-184®, Miraseen CP-209® or DNAconc®), titanium dioxide, titanium dioxide. (Eg, Timiron®), latexes such as styrene / acrylate copolymers (eg, Acusol® OP301), acrylate copolymers (eg, Rheoal® or Yodozol®), and mixtures thereof is there.

  A preservative will also usually be incorporated into the formulation. Exemplary materials include phenoxyethanol, methyl paraben, propyl paraben, ethylenediaminetetraacetic acid (EDTA) salt, benzyl alcohol, iodopropynyl butyl carbamate, DMDM hydantoin and combinations thereof. The amount of these materials can range from about 0.0001 to about 1% by weight of the composition.

  Optional secondary ingredients include colorants, fragrances, and promotional ingredients, each in an amount effective to achieve its respective purpose. Typical facilitating ingredients include vitamins such as retinyl palmitate, tocopherol acetic acid and niacinamide. Other accelerator components include conjugated linoleic acid, ceramide, pentapeptide, scrub silica, and combinations thereof.

  It should be understood that all numbers in the description indicating the amount of material are accompanied by the word “about” unless otherwise specified in the working examples and comparative examples.

  The term “comprising” is meant to encompass non-specific elements having primary or secondary functional significance, without limiting any element subsequently described. In other words, the listed steps, elements or choices need not be exhaustive. When using the words “including” or “having”, these terms are meant to be equivalent to “comprising” as defined above.

(Example 1-8)
Exemplary make-up remover cosmetic compositions according to the present invention are described in the following examples.

Example 9
In a series of PEG-20 glyceryl isostearates, tests were conducted to evaluate the efficacy of make-up removal. The test procedure used the following procedure. Bio Skin Plate (eg, BEAULAX, Co., Tokyo, Japan) samples were cut to 3 × 4 cm. The base color of each section was measured twice with a Minolta spectrophotometer CM-2002. A lipstick in an amount of 0.0080 g was applied as a 3 cm diameter circle to each section of the Bio Skin Plate sample. After 5 minutes, the color of the lipstick was measured with a spectrophotometer and then washed with water. Next, 0.2 ml of the test sample solution was applied to the lipstick circle. Then, using a finger, the sample section was rubbed 10 times counterclockwise and then rubbed 10 times counterclockwise. Rinse for about 30 seconds using tap water at about 37 ° C. After 5 rinses, the lipstick stain color was then re-measured. The measurement was then converted to a percentage of color change. An average of 3 replicate sample pieces was utilized. The test formulations and results are shown in the table below.

  Based on the results reported in the table, it is clear that the PEG glyceryl material is most effective against triisostearate esters. Diisostearate esters were less effective and monoisostearate was the least effective ester.

Claims (7)

(I) Total polyol, 0.5 to 40% by weight;
A makeup remover cosmetic composition comprising (ii) triisostearate ester of glycerol, 0.5 to 20% by weight; and (iii) water.   The composition of claim 1 wherein the triisostearate ester of glyceryl is alkoxylated with 1 to 50 moles of alkoxylate monomer per glycerol.   The composition of claim 1, wherein the triisostearate ester of glycerol is alkoxylated with 15 to 30 moles of alkoxylate monomer per glycerol.   The polyol is propylene glycol; glycerol; 1,4-butanediol; 1,3-butanediol; 1,2-butanediol; 1-6-hexanediol; 1,2-hexanediol; 3-methyl-1,3 The composition of claim 1, which is a monomeric polyol selected from the group consisting of -butanediol; 2-methyl-1,3-propanediol, sorbitol and mixtures thereof.   The composition of claim 1, wherein the polyol is a polymer polyol selected from the group consisting of polypropylene glycol, polyethylene glycol, dipropylene glycol, diglycerol, polyglycerol, trimethylene glycol, dipentaerythritol and combinations thereof.   The composition according to claim 1, further comprising an anionic emulsifier present in an amount of 0 to 5% by weight.   The composition according to claim 1, wherein the ester of glycerol is PEG-20 glyceryl triisostearate.