1
Gary L Holmes, Scott R Culler, David H Hardy, William A Hendrickson, Thomas P Klun, Kimberly K Harmon, Robert V Heiti, Kathryn M Spurgeon, Charles J Studiner III: Abrasive articles comprising precisely shaped particles. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Paul W Busse, March 19, 1996: US05500273 (120 worldwide citation)

Abrasive articles comprising precisely shaped particles are disclosed. The particles are bonded together to form a shaped mass, e.g., a wheel; alternatively, the particles can be bonded to a backing to form a coated abrasive article; or the particles can be bonded into a fibrous, nonwoven substrate ...


2

3

4

5

6
Matthew H Frey, Charles J Studiner III, Kenton D Budd, Toshihro Kasai, Stephen B Roscoe, Chikafumi Yokoyama, John E Bailey: Glass-ceramic microspheres that impart yellow color to retroreflected light. 3M Innovative Properties Company, Carolyn A Fischer, November 12, 2002: US06479417 (9 worldwide citation)

The present invention relates to transparent microspheres (i.e., beads) that impart yellow color to retroreflected light. The microsphere preferably comprise titania plus alumina, zirconia, and/or silica and iron oxide, manganese oxide, or mixtures thereof. More particularly, the present invention r ...