Water-in-oil type emulsion

A water-in-oil, emulsion technology, used in cosmetics, cosmetic preparations, cosmetic preparations, etc., can solve the problem of reduced use feeling, dosage form viscosity and hardness phase separation, difficulty in preventing emulsion particles from coagulation, fusion, and emulsion separation. layer and other problems to achieve the effect of improving the stability of the dosage form and preventing the agglomeration of emulsified particles

Pending Publication Date: 2018-12-21
AMOREPACIFIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the case of a water-in-oil type emulsion, excessive viscosity increase of the oil phase causes stickiness during use and reduces the feeling of use. The viscosity of the phase increases above a certain
Therefore, it is difficult to prevent coagulation, fusion, emulsion layering, etc. between emulsified particles, so there are disadvantages in that the viscosity and hardness of the dosage form decrease over time, and the phase separation of the dosage form occurs, especially in the dosage form with low viscosity. question

Method used

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  • Water-in-oil type emulsion
  • Water-in-oil type emulsion

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Embodiment 1～5

[0045] According to the composition described in the following Table 1, a water-in-oil emulsion was prepared by a conventional method, and each component was added in % by weight based on the total weight of the emulsion. More specifically, after mixing the water phase and the oil phase separately, the water phase is added to the oil phase and mixed.

[0046] In this case, compounds A and B are amine-containing compounds, compound A is hexyldecyl myristoyl carbamate, compound B is aminopolydimethylsiloxane, and compounds C, D, E, and F are Anionic polymer compound, compound C is acrylate / C10-C30 alkyl acrylate crosslinked polymer, compound D is polyacrylic acid, compound E is alginic acid, and compound F is polystyrenesulfonic acid. Lauryl polyethylene glycol-10 tris(trimethylsiloxy)silylethyl dimethicone was used as surfactant.

[0047] In addition, compared with the amount of commonly used surfactants, experiments were carried out by using a small amount of surfactants to a...

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Abstract

The present invention relates to an emulsion capable of improving stability of a dosage form by forming an additional membrane through a coacervation principle to prevent the coalescence of an inner phase when emulsion particles are damaged and, specifically, to a water-in-oil type emulsion comprising: a water phase comprising an anionic water-soluble polymer compound; and an oil phase comprisingan amine group-containing compound.

Description

technical field [0001] The present invention relates to a water-in-oil emulsion having improved dosage form stability by preventing the coalescence of emulsified particles by forming an additional film by the principle of coacervation when the emulsified particles are damaged. Background technique [0002] Emulsion (Emulsion) is formed by dispersing oil droplets in water (oil-in-water type) or water droplets in oil (water-in-oil type). , Sedimentation, Creaming, Ostwald ripening, Coalescence and other ways of phase separation. [0003] Generally, in the case of an oil-in-water emulsion, surfactants, fatty alcohols (fatty alcohol) and acids are used to firm the emulsified film to prevent the emulsified particles from agglomerating, and to increase the viscosity of the water phase as the external phase, thereby preventing the emulsion from Layer and cohere. [0004] However, in the case of a water-in-oil type emulsion, the excessive increase in the viscosity of the oil phase...

Claims

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Application Information

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IPC IPC(8): A61K8/06A61K8/72A61K8/73A61K8/41A61K8/58A61Q19/00
CPCA61K8/064A61K8/72A61K8/73A61K8/41A61K8/585A61Q19/00
Inventor 申智植朴成心金善映朴胜寒
Owner AMOREPACIFIC CORP
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