发明名称 |
METHOD FOR THE ENCAPSULATION OF SUBSTANCES IN SILICA-BASED CAPSULES AND THE PRODUCTS OBTAINED THEREOF |
摘要 |
The present invention relates to a method for enclosing either hydrophobic or hydrophilic substances in silica-based micro- and nanocapsules via emulsion techniques. More specifically, it relates to a method for the preparation of 0.01 - 100 μm, particularly 0.01 - 10 μm, silica-based microcapsules containing up to 99 % (w/w) payload using a silica precursor polymer, polyalkoxysiloxane (PAOS), preferentially polyalkylalkoxysiloxane (R-PAOS), which acts not only as a silica source but also an emulsifier. In order to obtain mechanically stable capsules, the conversion of PAOS or R-PAOS is accompanied with the solidification of the organic phase. For the encapsulation of hydrophobic substances, oil-in-water emulsions are formed. The formation of water-in-oil-in-water double emulsions is required to encapsulate hydrophilic compounds. |
申请公布号 |
WO2017016636(A1) |
申请公布日期 |
2017.02.02 |
申请号 |
WO2016EP01150 |
申请日期 |
2016.07.05 |
申请人 |
DWI - LEIBNIZ-INSTITUT FÜR INTERAKTIVE MATERIALIEN E.V. |
发明人 |
ZHAO, Yongliang;MÖLLER, Martin;ZHU, Xiaomin |
分类号 |
B01J13/02;B01J13/18;C08F2/18;C08G77/14;C08G77/46;C08L83/04;C08L83/06;C08L83/12 |
主分类号 |
B01J13/02 |
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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