DISPERSION OF HYDROPHOBICIZED SILICON DIOXIDE PARTICLES AND GRANULES THEREOF

WIPO Patent Application WO/2010/006839

A3

Process for preparing a dispersion of surface-modified silicon dioxide particles having an average particle diameter of not more than 100 nm by high-pressure milling of a preliminary dispersion comprising a) 10% to 50% by weight of surface-modified silicon dioxide particles, b) at least one glycol monoether of the general formula (A): H3C(CH2)m-O-(CH2)n-[O-(CH2)o]p-OH, c) at least one carboxylic ester of the general formula (B): H2x+1Cx-O-CH2-(CHR)-[O-CHR]y-O-C(=O)-CzH2z+1, d) the molar ratio A/B being 10:90 to 40:60 and m, n, o, p, x, y and z being independent of one another. Dispersion obtainable by this process. Process for producing granules of surface-modified silicon dioxide particles by separating off the liquid phase of the dispersion. Granules obtainable by this process. Use of dispersion and granules in coating materials.

JP5931902	Metal oxide nanofillers, their synthetic methods, and their use in fluororesin non-stick coatings
WO/1999/016834	AMPHIPHILIC PARTICLES OR MOLECULES WITH PREDOMINANTLY HYDROPHILIC AND PREDOMINANTLY HYDROPHOBIC DOMAINS DISTRIBUTED ANISOTROPICALLY ON THEIR SURFACE
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LORTZ WOLFGANG (DE)
PERLET GABRIELE (DE)
DIENER UWE (DE)
REITZ SASCHA (DE)

PCT/EP2009/056802

March 18, 2010

June 03, 2009

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EVONIK DEGUSSA GMBH (DE)
LORTZ WOLFGANG (DE)
PERLET GABRIELE (DE)
DIENER UWE (DE)
REITZ SASCHA (DE)

C09C1/30; C09D7/62

WO2004103508A2

2004-12-02

EP0943664A2	1999-09-22
EP1571181A2	2005-09-07
US20070196597A1	2007-08-23

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