Patent Number: 6,617,362

Title: Method of making cationic pigment slurries

Abstract: Cationically dispersed slurries of alumina pigments, which formed by aprocess including the combination of one or more alumina pigments, anonionic wetting agent or nonionic polymer and a cationic interfacialmodifier in an aqueous medium in the absence of an acid dispersant. Theslurries may be used in a method of manufacturing paper and paperboardproducts.

Inventors: Ryu; Richard Y. (Mt. Pleasant, SC), Snover; Jonathan L. (Ellicott City, MD)


International Classification: B01F 17/18 (20060101); B01F 17/22 (20060101); B01F 17/38 (20060101); B32B 29/00 (20060101); B32B 29/06 (20060101); B01F 017/18 (); B01F 017/22 (); B01F 017/38 ()

Expiration Date: 09/02015