Phosphated, oxidized starch and use of same as dispersant in aqueous solutions and coating for lithography
AssigneeAqualon Company
InventorsErnst K. Just, Robert G. Nickol
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Abstract
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 0.002 to about 0.005, 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.
Claims10
A 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 about 0.002 to about 0.005.
Dependencies are inferred from the claim text.