Abrasive grain containing alumina and zirconia
November 6, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3454385 3891408 Co-fused alumina-zirconia alloy abrasive containing magnesium oxide Non-fused aluminum oxide-based abrasive mineral Alumina sintered products and process for their production High silica faujasite polymorph - CSZ-3 and method of synthesizing Alumina-zirconia abrasive Articles containing non-fused aluminum oxide-based abrasive mineral Process for durable sol-gel produced alumina-based ceramics, abrasive grain and abrasive products Abrasive grits formed of ceramic containing oxides of aluminum and yttrium, method of making and using the same and products made therewith InventorAssigneeApplicationNo. 554033 filed on 11/06/1995US Classes:51/307, WITH INORGANIC MATERIAL51/309Metal or metal oxideExaminersPrimary: Jones, DeborahForeign Patent References
International ClassB24D 003/34AbstractA method of preparing preferred abrasive grain includes: preparing a dispersion including alpha alumina oxide monohydrate and zirconia sol therein; converting the dispersion to base grit material; and sintering the base grit to form abrasive grains. The presence of the zirconia sol within the dispersion from which the base grits are formed provides an improved abrasive grain. The improved abrasive grain are useful in abrasive products.Other References
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