Phosphated, oxidized starch and use of same as dispersant in aqu

Details Phosphated, oxidized starch and use of same as dispersant in aqu Phosphated, oxidized starch and use of same as dispersant in aqu

1987-12-09

1989-06-20

Kight, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

106 92, 106114, 106213, 106214, 524 49, 524 51, 524 52, C08B 3106

Patent

active

048410403

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.

REFERENCES:
patent: 3547907 (1970-12-01), Shepherd et al.
patent: 3629121 (1971-12-01), Eldib
patent: 3654263 (1972-04-01), Cescato
47 J. Amer. Oil Chem. Soc., pp. 522-524 (1970).
79 J. Am. Chem. Soc., 6460-6464 (1957).

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