发明名称 |
STABLE NANO TITANIA SOLS AND A PROCESS FOR THEIR PRODUCTION |
摘要 |
The present invention provides a process for producing a concentrated aqueous nano titania sol in the mild pH range (4.0 to 10.0) comprising contacting an acidic nano titania sol with a dispersant and with an alkalizing agent, and subjecting the nano titania sol to membrane filtration until the nano titania sol contains more than 300 g TiO2 nanoparticles/dm3. The nano titania sol may further be subjected to a coating treatment within any of the steps of the above described process. The concentrated aqueous nano titania sol of this disclosure is suitable for use in a variety of applications, including providing UV protection and photochemically degrading or inactivating contaminants. |
申请公布号 |
EP2477947(B1) |
申请公布日期 |
2016.08.31 |
申请号 |
EP20100768047 |
申请日期 |
2010.09.10 |
申请人 |
HUNTSMAN P&A UK LIMITED |
发明人 |
EDWARDS, JOHN;LOWRY, KARL |
分类号 |
C01G23/047;B82Y30/00;C01G23/053;C09C1/36;C09D1/00 |
主分类号 |
C01G23/047 |
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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