Phosphated, oxidized starch and use of same as dispersant in aqueous solutions and coating for lithography

Abstract From the Canadian patent

Abstract of the Disclosure, A novel phosphated oxidized starch having a molecular, weight of about 1,500 to about 40,000 Daltons a carboxyl, degree of substitution of 0.30 to 0.96 and a phosphate, degree of substitution of from about 0.0002 to about 0.0005 which is useful as a dispersant for aqueous high-solid, slurries of minerals and inorganic pigments as a, replacement for gum arabic in gumming and fountain solutions for lithography, and as a drilling fluid additive.