发明名称 |
PREPARATION OF SILICONE MICROEMULSIONS |
摘要 |
A mechanical method of making an oil-in-watermicroemulsion containing (A) a polysiloxane and (B) an inert fluid selected from an inert siloxane fluid and an inert organic fluid, where the average emulsion particle size is between 1 and 140 nanometers, is disclosed. The process involves the following steps: i) preparing an oil phase comprising a polysiloxane containing mixture by the polymerisation of silane or siloxane containing monomers and/or oligomers in the presence of an inert fluid, a suitable catalyst and optionally an end-blocking agent; and ii) where required quenching the polymerisation process; wherein the inert fluid is substantially retained within the resulting polysiloxane containing mixture; iii) if required, mixing one or more surfactants into the oil phase; iv) adding water to the oil phase, followed by applying agitation or shear to the mixture to arrive at an oil-in-water microemulsion; v) optionally diluting the oil-in-water microemulsion by adding more water. |
申请公布号 |
WO2009128883(A1) |
申请公布日期 |
2009.10.22 |
申请号 |
WO2009US02233 |
申请日期 |
2009.04.09 |
申请人 |
DOW CORNING CORPORATION;LIU, YIHAN;STAMMER, ANDREAS |
发明人 |
LIU, YIHAN;STAMMER, ANDREAS |
分类号 |
A61K8/06;A61K8/89;A61K8/898;C08J3/03;C09D183/04;C10M155/02;C11D3/37;C14C9/02;D06M15/643 |
主分类号 |
A61K8/06 |
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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