Document Type and Number:
Japanese Patent JPH0246576
Kind Code:
B2
Abstract:
A method for the production of N-aryl substituted di- and polyurethanes in high yield, by the reaction of an aromatic di- or polyamine with urea and alcohol at high temperatures. The di- and polyurethanes thus produced have utility as isocyanate precursors.
Inventors:
FURANTSU MERUGAA
FURIIDORIHI TOAE
FURIIDORIHI TOAE
Application Number:
JP9580688A
Publication Date:
October 16, 1990
Filing Date:
April 20, 1988
Export Citation:
Assignee:
BASF AG
International Classes:
B01J27/10; B01J31/04; C07B61/00; C07C67/00; C07C239/00; C07C269/00; C07C269/04; C07C271/06; C07C271/28; C07C271/30
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