US 7,611,575 B2
	High solids, large particle, calcined kaolin slurries
Edward J. Sare, Macon, Ga. (US); Tommy L. Adkins, Cochran, Ga. (US); and Stephen C. Raper, Byron, Ga. (US)
Assigned to Imerys Pigments, Inc., Roswell, Ga. (US)
Appl. No. 10/518,792 PCT Filed Dec. 01, 2003, PCT No. PCT/US03/35984 § 371(c)(1), (2), (4) Date Sep. 01, 2005, PCT Pub. No. WO2004/050773, PCT Pub. Date Jun. 17, 2004.
Prior Publication US 2006/0169174 A1, Aug. 03, 2006
Int. Cl. C04B 16/08 (2006.01); C04B 20/00 (2006.01); C04B 38/00 (2006.01); C08K 5/00 (2006.01); C09D 11/06 (2006.01); C11C 3/00 (2006.01); C04B 33/00 (2006.01)

U.S. Cl. 106—678  [106/503; 106/504; 106/505; 106/484; 106/485; 106/486; 106/487; 106/312; 106/499; 106/288; 106/468; 106/501.1; 501/141; 501/147; 501/148; 209/5; 162/181.5; 162/181.8]

33 Claims

1. A composition comprising a slurry comprising calcined kaolin, wherein at least about 40% by weight of the calcined kaolin has a particle size of at least about 1 μm, at least about 40% by weight of the calcined kaolin has a particle size of at least about 2 μm, the slurry has a solids content of at least about 58% by weight, relative to the total weight of the slurry, and the calcined kaolin has not been subjected to mechanical grinding.