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Method for preparing high-water-content emulsion gel using oil gel-forming agent

A technology of emulsion gel and gelling agent, which is applied in the direction of emulsion delivery, cosmetic preparations, and medical preparations of non-active ingredients. Good coating and good storage stability

Inactive Publication Date: 2018-07-31
NISSAN CHEM IND LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, oil-in-water (O / W type) emulsions are known to spread lightly on the skin (easily spread) (拍びが軽い) compared to water-in-oil type (W / O) emulsions, and are less oily. , so it is applied to more cosmetics, but even for W / O type emulsion, if the water content of the dispersed phase (inner phase) increases, it will become a refreshing feeling of use, so it is applied to products that require both a refreshing feeling and water resistance ( Non-patent literature 1)
[0005] In addition, it is known that the moist feeling of the skin and the makeup effect of the W / O type emulsion last for a long time, and the silicone-based W / O type emulsion is not only light and smooth to the touch, but also less prone to make-up due to sweat Decrease in effect (Non-Patent Document 2)

Method used

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  • Method for preparing high-water-content emulsion gel using oil gel-forming agent
  • Method for preparing high-water-content emulsion gel using oil gel-forming agent
  • Method for preparing high-water-content emulsion gel using oil gel-forming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] [Example 1: Synthesis of sugar derivatives]

[0128]

[0129] Scheme 1

[0130]

[0131] Synthesis of compound [3]: in methyl-α-D-glucopyranoside (8.74g, 45mmol), p-(dodecyloxy)benzaldehyde [2] (8.71g, 30mmol), p-toluenesulfonate To a suspension of acid monohydrate (143 mg, 0.75 mmol) in DMF (100 mL), triethyl orthoformate (5.0 mL, 30 mmol) was added at room temperature. The reaction solution was heated to 50° C., and the pressure was reduced. After 6 hours, the reaction solution was left to cool to room temperature, and 200 mL of a saturated aqueous sodium bicarbonate solution was added thereto, followed by filtration. The residue on the filter paper was washed with 400 mL of pure water, and the obtained solid was subjected to solid-liquid washing at 90° C. for 30 minutes in 400 mL of pure water. The suspended solution was filtered and washed with 400 mL of pure water. The obtained solid was dried under reduced pressure, finely pulverized, and then solid-liqui...

Embodiment 2

[0133] Embodiment 2: [gelation test]

[0134]

[0135] As long as the gel can be formed even when the surfactant is added, the water-oil dispersion gel can be easily prepared. Therefore, the gelation ability when Tween20 (HLB=16.7) with a large HLB value was added was examined.

[0136] The gelation test when the surfactant was added was performed as follows. Prepared various surfactants (polyoxyethylene (20) sorbitan monolaurate (Tween 20) as a nonionic surfactant, cetyl chloride as a cationic surfactant pyridine Monohydrate (CPC) and cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and bis(2-ethylhexyl)sulfosuccinate as anionic surfactants Aqueous solution of 0.5 wt% surfactant complex dissolved in water. Then, a gelling agent (glucose derivative [3]) was added to a 4 mL threaded tube so as to have a predetermined concentration, and the previously prepared surfactant-combined aqueous solution was added, followed by heating at 100° C. for 30 minutes....

Embodiment 3

[0145] [Example 3: Water-oil dispersion test using glucose derivative]

[0146]

[0147]Emulsion preparation technology that uniformly disperses and stabilizes oil and water is required for various applications such as cosmetics, pharmaceuticals, foods, and functional materials.

[0148] Inhibition of coalescence of droplets by gelation of the continuous phase is one of the important factors in the stabilization of emulsions. As a result of this experiment, it is possible that the W / O emulsion gel of the present invention can stabilize the emulsion by inducing the gelation of the continuous phase in the W / O emulsion and the O / W emulsion.

[0149] Therefore, in Example 3, a water-oil dispersion test was performed in order to confirm whether the W / O emulsion gel of the present invention can uniformly disperse two solvents of water and oil.

[0150] The water-oil dispersion test was performed as follows. A gelling agent (glucose derivative [3]), an oil agent (KF-995), and wat...

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Abstract

To provide a stable high-water-content W / O-type emulsion gel. A W / O-type emulsion gel which comprises a gel-forming agent comprising a compound represented by formula (1) or (2) (wherein R1 and R3 independently represent a linear or branched alkyl group having 1 to 20 carbon atoms, a cyclic alkyl group having 3 to 20 carbon atoms, or a linear or branched alkenyl group having 2 to 20 carbon atoms;n represents an integer of 0 or 1 to 4; R2 represents a hydrogen atom, a linear or branched alkyl group having 1 to 10 carbon atoms, or an aryl group which may have a substituent; and R4 and R5 independently represent a hydroxy group), a surfactant, and a solvent mixture comprising a hydrophobic organic solvent and water, wherein the gel-forming agent is contained in an amount of 0.1 to 20% by mass relative to the mass of the solvent mixture.

Description

technical field [0001] The present invention relates to a high water content emulsion gel using an oil gelling agent containing a sugar derivative, particularly a high water content W / O type emulsion gel and a preparation method thereof. Background technique [0002] A structure containing a fluid in a three-dimensional network formed by a substance having gel-forming ability (hereinafter, a gelling agent) is called a gel, and generally, a case where the fluid is water is called a hydrogel ( Hydrogel), the case where the fluid is an organic liquid (organic solvent, oil, etc.) other than water is called an organic gel or an oil gel. Oleogels (organogels) are used to adjust the fluidity of cosmetics and paints in the fields of cosmetics, pharmaceuticals, agricultural chemicals, foods, adhesives, paints, and resins. In addition, for example, it is also widely used in the field of environmental protection such as preventing water pollution by gelling waste oil into solid matter...

Claims

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Application Information

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IPC IPC(8): A61K8/60A61K47/14A61K47/26A61K8/06A61K8/31A61K8/37A61K8/41A61K8/49A61K8/89A61K9/107
CPCA61K8/31A61K47/14A61K47/26A61K8/602A61Q19/00A61K8/92A61K8/042A61K8/064A61K9/107A61K9/06A61K47/44A61K2800/10A61Q19/007
Inventor 猿桥康一郎平田修小野文靖新海征治山本龙广
Owner NISSAN CHEM IND LTD
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