Particles with structured surface
AssigneeWacker Chemie AG
InventorsFrank Sandmeyer, Herbert Barthel, Torsten Gottschalk-Gaudig
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Abstract
Particles with a structural surface which are useful to produce abrasion resistant self-cleaning surfaces contain particulate solid particles having a superstructured overlayer of fine particles. The particles may be prepared by polymerizing a polymerizable siloxane, silane, or mixture thereof in a Pickering emulsion.
Claims9
Solid particles comprising a core of at least one polymerization product of a polyaddable, polycondensable, or polymerizable siloxane, silane, or mixture thereof, and a shell of silylated fumed silica particles, wherein the mean particle size of the silylated fumed silica particles is smaller than the mean particle size of the core, wherein the silylated fumed silica particles are chemically bonded to the surface of the core.
Dependencies are inferred from the claim text.