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Bicontinuous microemulsion composition and cosmetic

A microemulsion and bicontinuous technology, applied in the direction of cosmetics, cosmetic preparations, toiletry preparations, etc., can solve the problems of unsuggested structure, etc., and achieve the effect of easy preparation and excellent use feeling

Active Publication Date: 2019-07-16
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent Document 12 exemplifies polyether-modified silicones and polyglycerin-modified silicones as examples of nonionic surfactants that can be used, but does not suggest specific structures, nor is it described in Examples.

Method used

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  • Bicontinuous microemulsion composition and cosmetic
  • Bicontinuous microemulsion composition and cosmetic
  • Bicontinuous microemulsion composition and cosmetic

Examples

Experimental program
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Embodiment

[0120] Hereinafter, the present invention will be described more specifically with reference to synthesis examples and examples, but the present invention is not limited to the following examples.

Synthetic example 1

[0122] Into the flask were charged 250.0 g of 1,1,1,3,5,5,5-heptamethyltrisiloxane, 344.0 g of the following polyglycerol compound [A] (degree of unsaturation: 3.41 meq / g), 891.0 g of 2-propanol, 0.06 g of Karstedt catalyst (platinum concentration 3%) and 0.12 g of 10% potassium acetate ethanol solution were added, and the reaction was carried out at 80° C. for 5 hours. After the reaction, the solvent was distilled off under reduced pressure to obtain the following polyglycerin-modified silicone (hereinafter referred to as compound 1).

[0123] [chemical formula 10]

[0124]

[0125] [chemical formula 11]

[0126]

Synthetic example 2

[0128] Add 40.0 g of 1,1,1,3,5,5,5-heptamethyltrisiloxane, 76.0 g of the following polyglycerol compound [B] (degree of unsaturation: 2.47 meq / g), 2-propane Alcohol 174.0g, add Karstedt catalyst (platinum concentration 3%) 0.012g, 10% potassium acetate ethanol solution 0.024g, obtain following polyglycerol modified silicone (hereinafter referred to as compound 2) in the same manner as Synthesis Example 1 ).

[0129] [chemical formula 12]

[0130]

[0131] [chemical formula 13]

[0132]

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Abstract

The present invention provides a transparent bicontinuous microemulsion composition which does not require an anionic or cationic surfactant, a water-soluble alcohol or the like, and a cosmetic excellent in use, which composition has the following general formula (A) (1) A polyglyceryl group-containing organic (poly)siloxane, (B) oil agent, and (C) water composition. In the formula, R1 is independently an alkyl group having 1 to 10 carbon atoms or a phenyl group, and R2 is a group having a structure represented by the following formula (2) or the following formula (3), and R3 is independent ofeach other. The ground is R1 or R2, a is 0-6, b is 0-4, and a+b is 0-10. Wherein, when b is 0, one or more of R3 is R2. In the formula, R4 is an alkylene group having 2 to 10 carbon atoms or an aralkylene group having 7 to 10 carbon atoms, and c is 0 to 10 and d is 2 to 6.

Description

technical field [0001] The present invention relates to a bicontinuous microemulsion composition and cosmetics containing the composition. Background technique [0002] In a transparent microemulsion composition composed of a surfactant, an oil agent, and water, there are three forms of water continuous type, oil continuous type, and bicontinuous type (Non-Patent Document 1). Among them, the bicontinuous microemulsion composition can provide cosmetics with improved functionality and usability, and various methods for obtaining the composition have been reported. [0003] For example, compositions used as face cleansers or skin and hair cleansers are mentioned (Patent Documents 1 to 7). However, these compositions all contain water-soluble alcohols as essential ingredients. In addition, Patent Document 5 requires hydrophilic surfactants and lipophilic surfactants, and Patent Documents 7, 8, and 9 require amphoteric surfactants and anionic surfactants. [0004] As a composi...

Claims

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Application Information

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IPC IPC(8): A61K8/894A61K8/891A61K8/58A61K8/37A61K8/31A61K8/06A61Q19/10A61Q5/12
CPCA61K8/894A61K8/891A61K8/585A61K8/375A61K8/37A61K8/31A61K8/068A61Q19/10A61Q5/12A61K2800/30A61K8/89A61Q19/00A61K2800/262A61K8/892A61K8/066A61Q5/00
Inventor 作田晃司安部拓矢
Owner SHIN ETSU CHEM IND CO LTD
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