US 7,503,949 B2
	Abrasive article and method
Eric G. Larson, Lake Elmo, Minn. (US)
Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US)
Filed on Sep. 01, 2005, as Appl. No. 11/218,808.
Prior Publication US 2007/0044384 A1, Mar. 01, 2007
Int. Cl. C09K 3/14 (2006.01); B05D 7/14 (2006.01); B32B 5/24 (2006.01); D21H 17/29 (2006.01); D21H 19/62 (2006.01)

U.S. Cl. 51—298  [106/287.22; 442/156]

20 Claims

1. An abrasive article comprising a plurality of abrasive particles and a binder wherein the binder comprises a polymer formed by a reaction between a polyisocyanate and a polyoxirane, wherein the resulting binder is substantially free of urethane and urea linkages, and wherein the amount of polyisocyanate used to form the polymer is greater than about 75% of the amount of polyoxirane.