초록 ▼

A method of preparing a polymer structured pigment slurry which comprises providing an anionic, aqueous slurry including a plurality of solid mineral particles, adding a low molecular weight, cationic polymer in an amount of less than about 0.20% by weight to the slurry and then adding a small amoun

A method of preparing a polymer structured pigment slurry which comprises providing an anionic, aqueous slurry including a plurality of solid mineral particles, adding a low molecular weight, cationic polymer in an amount of less than about 0.20% by weight to the slurry and then adding a small amount of an inorganic dispersant to the polymer treated pigment slurry. The Malvern median particle size of the mineral particles treated with the polycationic polymer is less than about 20% larger than the Malvern median particle size of the untreated mineral particles.

대표청구항 ▼

[ What is claimed is:] [1.] A method of preparing a polymer structured pigment slurry comprising the steps of:providing an anionic, aqueous slurry, said slurry including a plurality of kaolin clay particles having a Malvern median particle size of about 0.3 to about 3.5 microns, and wherein the slur

[ What is claimed is:] [1.] A method of preparing a polymer structured pigment slurry comprising the steps of:providing an anionic, aqueous slurry, said slurry including a plurality of kaolin clay particles having a Malvern median particle size of about 0.3 to about 3.5 microns, and wherein the slurry includes at least about 50% kaolin clay particles by weight;admixing a low molecular weight, polycationic polymer having a molecular weight less than 50,000 to said slurry in an amount of less than about 0.20% by weight, the Malvern median particle size of said kaolin clay particles increasing in an amount of less than about 20% after the step of admixing said polycationic polymer to said slurry.