Patent ID: 7144475
Filing Date: 2006-12-05
Classification: B01F,D21H

Abstract:
1. A method of making a coated paper comprising: providing a paper substrate; preparing a coating formulation including a cationic slurry comprising an alumina pigment, a wetting agent and a cationic interfacial modifier, wherein said alumina pigment is present at about 35 to about 45 percent by weight of said slurry, said wetting agent is present at about 0.5 to about 5 percent by weight of said slurry and said cationic interfacial modifier is present at about 2 to about 15 percent by weight of said slurry, wherein said cationic slurry has a total solids content of about 42 to about 72 percent by weight; and applying said coating formulation to at least one side of said paper substrate at a coat weight of about 2 to about 8 pounds per 3,300 square feet.