Process for preparing polyoxyethylene amines with urea linkages

Details Process for preparing polyoxyethylene amines with urea linkages Process for preparing polyoxyethylene amines with urea linkages

1992-03-09

1993-09-28

Robinson, Allen J.

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

Organic compounds

Amino nitrogen containing

564 48, 564 56, C07C27300

Patent

active

052488217

ABSTRACT:
High molecular weight active polyoxyalkylene reaction product formed in two steps and containing urea or urethane and urea linkages are disclosed which contain as the principle reaction component, a diamine having the formula: ##STR1## or a diol having the formula: ##STR2## wherein R' independently represents hydrogen or methyl and x is a number having an average value of at least 1 to about 70 and a diisocyanate of the formula: ##STR3## an active amine selected from the group consisting of amine terminated triethylene glycol, amine terminated tetraethylene glycol, isophorone diamine, dipropylene triamine, or diethylene triamine.

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Cunliffe et al, Polymer, Feb. 26, 1985, p. 301 only.

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