U.S. 6,087,003

U.S. 6,087,003 (1994) Curt Thies, J-P Benoit, H. Rolland, and V. Vande Velde, Method of Coating Particles¨. Also see PCT/EP 95/03953 (06/10/95) (European Patent 0,784,506 B1, February 17, 1999).