Micro-crystalline boehmites containing additives
AssigneeAkzo Nobel N.V.
InventorsDennis Stamires, Paul O'Connor, Gregory Pearson, William Jones
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Abstract
A microcrystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group consisting of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. The microcrystalline boehmite according to the invention may be prepared in several ways. In general, a microcrystalline boehmite precursor and an additive are converted to a microcrystalline boehmite containing the additive in a homogeneously dispersed state. The additive does not contain zirconia or magnesia.
Claims18
Microcrystalline boehmite wherein an additive is present in a homogeneously dispersed state, which additive is a compound containing an element selected from the group consisting of alkaline earth metals, rare earth metals, alkaline metals, transition metals, actinides, noble metals, silicon, boron, titanium and phosphorus, wherein said additive not containing zirconia or magnesia.
Dependencies are inferred from the claim text.