Abrasive grains with a sheath comprising an aqueous binder and a complex fine-grained compound oxide, a process for the treatment of this type of abrasive grains and their use for synthetic resin-bound abrasive

摘要

Abrasive grains from the group consisting of the conventional abrasive grains, the molten or sintered corundum, zirconium corundums, silicon carbides and boron carbide, wherein the abrasive particles having a casing which is composed of an aqueous binder and a complex fine-grained compound oxide, are provided, characterized in that the complex fine-grained compound oxide the general composition a_xB_yO_z and it has a_x and b_y in each case by one or more elements from a group of elements a, which is the group of the metals in the periodic system of elements, consisting of titanium, zirconium, iron, cobalt and / or nickel, or a second group of elements b, which is the group consisting of the amphoteric elements in the periodic system of elements, consisting of vanadium, chromium, manganese, zinc, tin and / or antimony and o_z in order to oxygen, which in the stoichiometric ratio to a_x and b_y is present, wherein x and y natural number 0 and z a..