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Surface-modified amphiphilic anisotropic powder, emulsion composition containing the same and preparation method thereof

An emulsion composition, anisotropic technology, applied in the directions of skin care preparations, pharmaceutical formulations, cosmetic preparations, etc., can solve the problems of geometric limitations, difficulty in uniform mass production, and inability to practical application, and achieve simple methods and yields. suitable effect

Active Publication Date: 2020-08-11
AMOREPACIFIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, there are still geometric limitations and difficulties in uniform mass production, which make it impossible for practical application

Method used

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  • Surface-modified amphiphilic anisotropic powder, emulsion composition containing the same and preparation method thereof
  • Surface-modified amphiphilic anisotropic powder, emulsion composition containing the same and preparation method thereof
  • Surface-modified amphiphilic anisotropic powder, emulsion composition containing the same and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0085] Preparation Example 1 - Preparation of Polystyrene (PS) First Polymer Spheres

[0086] Styrene (as a monomer), sodium 4-vinylbenzenesulfonate (as a stabilizer), and azobisisobutyronitrile (AIBN) (as an initiator) The liquid phase was mixed and allowed to react at 75°C for 8 hours. The reaction was carried out by stirring the reaction mixture at a speed of 200 rpm in a cylindrical reactor with a diameter of 11 cm (centimeter) and a height of 17 cm (centimeter) made of glass.

preparation Embodiment 2

[0087] Preparation Example 2 - Preparation of coated first polymer spheres with core-shell (CS) structure

[0088] The polystyrene (PS) first polymer spherical particles obtained as previously described are mixed styrene (as a monomer), 3-(trimethoxysilyl) propyl acrylate (3-(trimethoxysilyl) propyl acrylate) (TMSPA) and azobisisobutyronitrile (AIBN) as initiators, and the reaction mixture was allowed to react. The reaction is carried out by stirring the reaction mixture in a cylindrical reactor.

preparation Embodiment 3

[0089] Preparation Example 3 - Preparation of Anisotropic Powder

[0090] Aqueous dispersions of polystyrene core-shell (PC-CS) dispersions obtained as previously described were mixed with styrene (as monomer), sodium 4-vinylbenzene sulfonate (as stabilizer) , and azobisisobutyronitrile (AIBN) (as an initiator), and the reaction mixture is heated to 75°C for reaction. The reaction is carried out by stirring the reaction mixture in a cylindrical reactor. In this way, an anisotropic powder is obtained.

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Abstract

Disclosed in the present specification are a surface-modified amphiphilic anisotropic powder, an emulsion composition containing the same, and a method for preparing the same. The amphiphilic anisotropic powder has increased hydrophilicity due to surface modification, and is capable of controlling emulsion properties due to control of amphiphilic properties. Also, the emulsion composition contains the surface-modified amphiphilic anisotropic powder, thereby having an effect of improving emulsion stability with polar oil, compatibility with an anionic substance such as a thickener, and dispersibility of emulsion particles, which can minimize the amount of the thickener used.

Description

technical field [0001] The invention relates to a surface-modified amphiphilic anisotropic powder, an emulsion composition containing the powder, and a preparation method thereof. Background technique [0002] Various methods of preparing particles of different shapes and sizes (nano-sized, micron-sized, etc.) have been reported. In particular, polymer-containing spherical microparticles have a particle size and shape that can be controlled according to their preparation methods, and thus have high applicability. For example, Pickering emulsions using spherical microparticles to form stable macroemulsion particles are provided. [0003] Such Pickering emulsions using solid spherical powders form W / O emulsions or O / W emulsions, depending on the wettability of the solid powder interface, that is, depending on the degree of lipophilicity or hydrophilicity. The contact angle is the factor that determines the orientation of the surface film. When the contact angle is less than...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/34A61K8/72A61K8/81A61Q19/00A61K8/92A61K8/06
CPCA61K8/06A61K8/34A61K8/72A61K8/81A61K8/92A61Q19/00
Inventor 金荣宣南珍俞载元安顺爱姜炳永韩相勋
Owner AMOREPACIFIC CORP
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