Absorbent polymeric compositions derived from corn flour and sta

Details Absorbent polymeric compositions derived from corn flour and sta Absorbent polymeric compositions derived from corn flour and sta

1978-12-18

1980-09-09

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

47DIG10, 128284, 128285, 128290R, C08L 302

Patent

active

042216842

ABSTRACT:
Absorbent polymeric compositions are disclosed which are prepared by graft copolymerizing acrylonitrile onto a starch or corn flour-containing substrate followed by subjecting the graft copolymer to alkaline saponification. A polymeric composition of increased absorbency is obtained by isolating the saponified graft copolymer from solution as a colloidal precipitate subsequent to the slow addition of an alcohol to the solution.

REFERENCES:
patent: 3425971 (1969-02-01), Gugliemelli et al.
patent: 3661815 (1972-05-01), Smith
patent: 4069177 (1978-01-01), Smith
patent: 4076663 (1978-02-01), Masuda et al.
patent: 4134863 (1979-01-01), Fanta et al.

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