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2. 发明申请

US20090130306A1 SURFACE MODIFIERS AND PROCESS FOR SURFACE MODIFICATIONS OF PARTICLES OF METAL OXIDE USING THE SAME 有权
标题翻译：表面改性剂及使用其的金属氧化物颗粒的表面改性方法
公开(公告)号：US20090130306A1
公开(公告)日：2009-05-21
申请号：US11966521
申请日：2007-12-28
申请人： Bok Ryul YOO , Joon Soo HAN , Weon Cheol LIM , Yong Su JUNG
发明人： Bok Ryul YOO , Joon Soo HAN , Weon Cheol LIM , Yong Su JUNG
IPC分类号： B05D7/00 , C09D7/00
CPC分类号： C09C3/12 , C01P2004/64 , C01P2004/84 , C09C1/3081 , C09C1/3684
摘要： Disclosed herein are a surface modifier for metal oxide particles and a method of modifying the surface of metal oxide particles using the same. The surface modifier consists either of an alkylsilanepolyol containing a cyclic alkyl group capable of imparting steric hindrance or of a mixture of said alkylsilanepolyol with alkylalkoxysilane, and the method of modifying the surface of metal oxide particles comprises coating the surface modifier on the hydrophilic surface of the metal oxide particles through chemical bonding so as to impart hydrophobicity or amphiphilicity (hydrophilicity and hydrophobicity) and reactivity to the surface of the metal oxide particles. Through the use of alkylsilane triol having a specific chemical structure, surface-modified metal particles having uniform particle size distribution can be provided not only by inhibiting the condensation and agglomeration of the surface modifier itself during a high-temperature condensation reaction for inducing the chemical bonding between metal oxide and the modifier, but also by stabilizing silicon-hydroxyl (Si—OH) bonds.
摘要翻译：本文公开了一种用于金属氧化物颗粒的表面改性剂和使用其改性金属氧化物颗粒的表面的方法。表面改性剂由含有能够产生空间位阻的环状烷基的烷基硅烷多元醇或所述烷基硅烷多元醇与烷基烷氧基硅烷的混合物组成，修饰金属氧化物颗粒的表面的方法包括将表面改性剂涂覆在金属氧化物颗粒通过化学键合以赋予疏水性或两亲性（亲水性和疏水性）和对金属氧化物颗粒的表面的反应性。通过使用具有特定化学结构的烷基硅烷三醇，不仅可以通过抑制表面改性剂本身在用于诱导化学键合的高温缩合反应中的缩合和凝聚而提供具有均匀粒度分布的表面改性金属颗粒金属氧化物和改性剂之间，而且通过稳定硅羟基（Si-OH）键。

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