1
Larry D Monroe, William P Wood: Abrasive grits formed of ceramic containing oxides of aluminum and rare earth metal, method of making and products made therewith. Minnesota Mining and Manufacturing Co, Donald M Sell, Walter N Kirn, Richard Francis, November 21, 1989: US04881951 (274 worldwide citation)

Ceramic abrasive grits comprising alpha alumina and at least about 0.5 percent by weight rare earth metal oxide are prepared by combining alumina hydrate and rare earth metal oxide or its precursors to produce a blend, drying the blend to produce a dried solid, crushing the dried solid to produce gr ...


2
Larry D Monroe, William P Wood: Abrasive grits formed of ceramic containing oxides of aluminum and yttrium, method of making and using the same and products made therewith. Minnesota Mining and Manufacturing Company, Donald M Sell, Richard Francis, September 13, 1988: US04770671 (249 worldwide citation)

Ceramic abrasive grits comprising alpha alumina and at least about 0.5 percent by weight yttria are prepared by mixing an aqueous dispersion of alpha alumina monohydrate and yttrium compound, gelling the resultant mixture, drying the gel to produce a dried solid, crushing the dried material to produ ...


3
Dwight D Erickson, Larry D Monroe, Thomas E Wood, David M Wilson: Method of making alpha alumina-based abrasive grain containing silica and iron oxide. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Gregory D Allen, July 8, 1997: US05645619 (110 worldwide citation)

A method of making an alpha alumina-based ceramic abrasive grain comprising, on a theoretical oxide basis, Al.sub.2 O.sub.3, Fe.sub.2 O.sub.3, and SiO.sub.2. The abrasive grain has a surface roughness height of greater than about 200 nanometers and a density of greater than about 3.50 g/cm.sup.3. Pr ...


4
Darren T Castro, Ahmet Celikkaya, Larry D Monroe: Abrasive grain, abrasive articles, and methods of making and using the same. 3M Innovative Properties Company, Gregory D Allen, August 21, 2001: US06277161 (91 worldwide citation)

Alpha alumina-based abrasive grain. The abrasive grain can be incorporated into abrasive products such as coated abrasives, bonded abrasives, non-woven abrasives, and abrasive brushes.


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Larry D Monroe, Thomas E Wood: Alpha alumina-based abrasive grain containing silica and iron oxide. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Gregory D Allen, March 18, 1997: US05611829 (82 worldwide citation)

An alpha alumina-based ceramic abrasive grain comprising, on a theoretical oxide basis, Al.sub.2 O.sub.3, Fe.sub.2 O.sub.3, and SiO.sub.2. The abrasive grain has a surface roughness height of greater than about 200 nanometers and a density of greater than about 3.50 g/cm.sup.3. Preferably, the alpha ...


6
Larry D Monroe: Abrasive grain. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Gregory D Allen, January 14, 1997: US05593467 (53 worldwide citation)

Crystalline ceramic, alpha alumina-based abrasive grain and a method of making the same. The abrasive grain can be incorporated into abrasive products such as coated abrasives, bonded wheels, and three dimensional, low density abrasives.


7
Larry D Monroe, Thomas E Wood: Method for making an abrasive article. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Gregory D Allen, July 29, 1997: US05651801 (25 worldwide citation)

Methods for making abrasive articles (e.g., coated abrasives, bonded wheels, and three dimensional, low density abrasives) comprising crystalline ceramic, alpha alumina-based abrasive grain.


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Larry D Monroe: Method for making ceramic materials from boehmite. Minnesota Mining and Manufacturing Company, Gregory D Allen, March 17, 1998: US05728184 (22 worldwide citation)

Method for making alpha alumina-based ceramic material (e.g., abrasive grain and fibers) from a hydrothermally treated boehmite dispersion comprising colloidal silica.


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Larry D Monroe, Thomas E Wood: Method for making an abrasive article. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn Jr, Gregory D Allen, July 8, 1997: US05645618 (10 worldwide citation)

Methods for making abrasive articles (e.g., coated abrasives, bonded wheels, and three dimensional, low density abrasives) comprising crystalline ceramic, alpha alumina-based abrasive grain.