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Lamellar type liquid crystal composition for cosmetic

A technology for layered liquid crystal and cosmetics, which is applied in the field of layered liquid crystal compositions for cosmetic purposes, can solve problems such as water resistance of cleaning cosmetics, and achieve the effects of good cleaning power, refreshing feeling of use and good feeling of use.

Inactive Publication Date: 2009-09-23
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cleansing cosmetics mixed with polyglyceryl fatty acid esters have a problem of stability over time due to hydrolysis in aqueous systems
In addition, cleansing cosmetics mixed with polyglycerol monoalkyl ether are not products that form a lamellar liquid crystal phase, and there is a problem of water resistance of cleansing cosmetics

Method used

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  • Lamellar type liquid crystal composition for cosmetic
  • Lamellar type liquid crystal composition for cosmetic
  • Lamellar type liquid crystal composition for cosmetic

Examples

Experimental program
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Effect test

preparation example Construction

[0036] As a method for preparing polyglycerol monoether, there may be mentioned a method in which glycidol is added to aliphatic alcohol in the presence of a basic catalyst, and the molar ratio of the alcohol / glycidol to a specific value is reacted; A method of reacting with an α-olefin epoxide; a method of ring-opening an alkyl glycidyl ether with polyglycerol in the presence of an acid catalyst or a base catalyst, etc., are not particularly limited.

[0037] Preferred examples of polyglycerol monoethers obtained by the above method include diglyceryl monododecyl ether, triglycerol monododecyl ether, triglycerol monotetradecyl ether, tetraglycerol monotetradecyl ether, and triglycerol monotetradecyl ether. Ether, triglycerol monocetyl ether, tetraglycerol monotetradecyl ether, tetraglycerol monostearyl ether, tetraglycerol monoisostearyl ether, tetraglycerol monooleyl ether, etc. More preferably, diglycerol monolauryl ether, tetraglycerol monotetradecyl ether, tetraglycerol m...

Embodiment

[0066] Hereinafter, examples are given and the present invention will be described in more detail, but the present invention is not limited by these examples.

[0067] The mixtures were mixed according to the mixing compositions of Examples 1-3 shown in Table 1 below and Comparative Examples 1-3 shown in Table 2 below to prepare cleansing cosmetic compositions. The obtained compositions for preparing cleansing cosmetics were evaluated according to the following evaluation criteria. The results are shown in Table 3.

[0068] (Evaluation)

[0069] [Detergency (non-wet state)]

[0070] Apply the lipstick on the front of the arm, take about 0.5 g of the prepared cosmetic composition on the hand, and rub the lipstick applied part 30 times. Subsequently, the fall-off of the lipstick was evaluated by visual inspection.

[0071] [Evaluation criteria for detergency (non-wetting state)]

[0072] ◎: Completely peeled off.

[0073] ○: Almost peeled off.

[0074] △: There is a littl...

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Abstract

Disclosed is a lamellar liquid crystal composition for cosmetic use, which contains one or more polyglycerol monoethers and has a lamellar liquid crystalline phase formed by the polyglycerol monoethers. The polyglycerol monoethers each have a hydrophile-lipophile balance (HLB) of 6 to 12 and are represented by following Formula (I): RO-(GL) n -H (I) wherein R represents a linear or branched alkyl, alkenyl, or hydroxyalkyl group; ''n'' denotes an integer of from 2 to 10; and GL represents a glycerol unit. The cosmetic composition exhibits a superior cleansing power regardless of whether the skin is wet or not, and gives a satisfactory feel during use without leaving an oily sensation after rinsing with water.

Description

technical field [0001] The present invention relates to a lamellar liquid crystal composition for cosmetic use and cosmetics containing the composition. The lamellar liquid crystal composition for cosmetic use contains more than one polyglycerol monoether with a specific structure, which is effective in removing residues. The effect of makeup is remarkable. Background technique [0002] In the field of cosmetics, cleansing cosmetics are commercially available to remove skin dirt and residual makeup. This type of cosmetics includes paste, emulsion, oil, oily gel and other types mixed with a large amount of surfactants, and various types of emulsions and aqueous gels that do not use surfactants at all or use a small amount of surfactants. form. [0003] However, since cleansing cosmetics mixed with a large amount of surfactants leave oily components on the skin, even after the cosmetics on the skin are peeled off, it is necessary to wash off with cleansing cosmetics again. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/33A61Q19/10
CPCA61K8/0295A61Q19/10A61K8/39
Inventor 坂西裕一
Owner DAICEL CHEM IND LTD
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