Crosslinked, linear, acylated polyalkylenepolyamines and process

Details Crosslinked, linear, acylated polyalkylenepolyamines and process Crosslinked, linear, acylated polyalkylenepolyamines and process

1977-03-07

1978-05-02

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08G 1800

Patent

active

040874133

ABSTRACT:
The title compounds are prepared by contacting a linear, acylated polyalkylenepolyamine, such as poly(N-propionyl)ethylenimine, and a diisocyanate, such as toluene diisocyanate, at a temperature of about 30.degree.-200.degree. C. These novel, crosslinked polyalkylenepolyamines are useful water absorbants and bleach Kraft-pulp effluent decolorants.

REFERENCES:
patent: 3418275 (1968-12-01), Stephens
patent: 3418287 (1968-12-01), Foster
patent: 3440087 (1969-04-01), Kamal et al.
patent: 3471450 (1969-10-01), Mullen
patent: 3655814 (1972-04-01), Rembaum
patent: 3865791 (1975-02-01), Brinkmann et al.

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