Particulate filler, preparation and use thereof
AssigneeSusonity Commercial GmbH
InventorsJohann Bauer, Manfred Parusel
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Abstract
The present invention relates to a particulate filler which has a coating on support particles in each case surrounding the latter, which comprises a titanium dioxide doped with niobium and at least one further element, to a process for the preparation of a particulate filler of this type and to the use thereof, in particular as varistor filler having nonlinear electrical properties in coating compositions and moulding compounds.
Claims20
A particulate filler which consists of support particles and a coating in each case surrounding the support particles, wherein the support particles comprise at least one aluminium compound or silicon compound and the coating comprises a titanium dioxide doped with niobium and at least one further element, which at least one further element is Mn, Cr and/or Ce.
Dependencies are inferred from the claim text.