Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-12-06
1979-01-16
Woodberry, Edward M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
128285, 128290R, 128290P, 195 63, 195 68, 195DIG11, 210 43, 210 54, 252312, 260 174ST, 260 174CL, 260891, C08L 302
Patent
active
041348630
ABSTRACT:
Absorbent compositions comprising graft copolymers of acrylonitrile and starch, or related polyhydroxy polymers, are prepared by improved methods of synthesis. Mixing the acrylonitrile with selected water-soluble acrylic comonomers enables unexpected improvements including reduction of the saponification time, total elimination of the base-saponification step, elimination of the starch gelatinization step, preparation of products which absorb large amounts of aqueous fluids under highly acidic conditions, and preparation of products which absorb over 5000 times their weight of deionized water.
REFERENCES:
patent: 3455853 (1969-07-01), Dekking
patent: 3457198 (1969-07-01), Sobolev
patent: 3770673 (1973-11-01), Slagel
patent: 3785921 (1974-01-01), Ide et al.
patent: 3826767 (1974-07-01), Hoover et al.
patent: 3889678 (1975-06-01), Chatterjee
patent: 3929706 (1975-12-01), Schmidt et al.
patent: 3984361 (1976-10-01), Gugliemelli et al.
patent: 3997484 (1976-12-01), Weaver et al.
patent: 4025472 (1977-05-01), Lepoutre
patent: 4028290 (1977-06-01), Reid
patent: 4072640 (1978-02-01), Sosa
patent: 4076663 (1978-02-01), Masuda et al.
Doane William M.
Fanta George F.
Stout Edward I.
McConnell David G.
Ribando Curtis P.
Silverstein M. Howard
The United States of America as represented by the Secretary of
Woodberry Edward M.
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