Isocyanate resin absorbent for free chlorine, heavy metals and h

Details Isocyanate resin absorbent for free chlorine, heavy metals and h Isocyanate resin absorbent for free chlorine, heavy metals and h

1971-08-25

1976-05-25

Wyse, Thomas G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210502, 210 38R, 210 38B, 260 25AT, 260 22R, B01J 108

Patent

active

039591492

ABSTRACT:
As an absorbent for chlorine, heavy metals or heavy metallic compounds, a resin prepared by reacting polyisocyanate with at least one compound selected from the group consisting of polyols and functional monomers which have at least 2 active hydrogen atoms and at least one functional group selected from the group consisting of ##EQU1## >NH and --N=, such that the ratio of the total active hydrogen atom number in the polyol and functional monomer to the total isocyanate group number in the polyisocyanate is 0.8 to 5.0.

REFERENCES:
patent: 3383400 (1968-05-01), Meisert et al.
patent: 3422165 (1969-01-01), Brotherton et al.
patent: 3674828 (1972-07-01), Brooks et al.
patent: 3691225 (1972-09-01), Kamal et al.

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