发明名称 |
MICROCAPSULE-MANUFACTURING PROCESS AND MICROCAPSULES |
摘要 |
The present invention aims to provide a method for producing microcapsules, wherein the method can control the particle size and produce microcapsules excellent in retentivity and releasability of a water-soluble core agent. The present invention also aims to provide a microcapsule excellent in retentivity and releasability of a water-soluble core agent. The present invention provides a method for producing microcapsules comprising the steps of: preparing an emulsion by dispersing an aqueous solution A obtained by dissolving at least an aqueous solvent-soluble polymer and a water-soluble core agent in an aqueous solvent in a non-polar solution B obtained by dissolving an emulsifier or a dispersant in a non-polar medium; and forming a core-shell structure in which the water-soluble core agent is covered with a shell containing the aqueous solvent-soluble polymer by heating the emulsion at a temperature of 20°C to 100°C and/or decompressing the emulsion at a pressure of 0.1 to 0.001 MPa to remove the aqueous solvent, the weight ratio of the aqueous solution A to the non-polar solution B being 1/10 to 1/1. |
申请公布号 |
EP2883605(A1) |
申请公布日期 |
2015.06.17 |
申请号 |
EP20130827439 |
申请日期 |
2013.08.08 |
申请人 |
SEKISUI CHEMICAL CO., LTD. |
发明人 |
IWAMOTO, TADASHI;YAMAUCHI, HIROSHI |
分类号 |
B01J13/12;A61K8/11;A61K8/65;A61K8/81;A61K9/50;A61Q19/00;C09B67/02;C11D3/50 |
主分类号 |
B01J13/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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