| 摘要 |
<p>The invention relates to modified nanoparticles based on pyrogenic silica which are produced by treating pyrogenic silica with compounds of the general formula (I) Me(OR<sup>1</sup>)<sub>4</sub>, and/or of the general formula (II) Me(OCOR<sup>1</sup>)<sub>4</sub>, wherein R<sup>1</sup> means an alkyl, aryl and/or aralkyl residue and Me means zirconium and/or titanium and to coating compositions containing the modified nanoparticles.</p> |
