VERFAHREN ZUR HERSTELLUNG VON N,O-SUBSTITUIERTEN MONO- UND/ODER POLYURETHANEN

The invention describes a process for the preparation of N,o-substituted mono- and/or polyurethanes of formula R1[-NHCOOR2]n, in which R1 is an aliphatic, cycloaliphatic, aromatic, araliphatic, or heterocyclic radical, which may be substituted, R2 is an aliphatic, cycloaliphatic, or araliphatic radi...

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Bibliographic Details
Main Authors MERGER,FRANZ,DR, TOWAE,FRIEDRICH,DR
Format Patent
LanguageGerman
Published 14.02.1985
Edition3
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:The invention describes a process for the preparation of N,o-substituted mono- and/or polyurethanes of formula R1[-NHCOOR2]n, in which R1 is an aliphatic, cycloaliphatic, aromatic, araliphatic, or heterocyclic radical, which may be substituted, R2 is an aliphatic, cycloaliphatic, or araliphatic radical which may be substituted with alkoxy or polyoxyalkylene groups, and n is a whole number from 1 to 5, through the reaction of N-substituted allophanates and/or polyallophanates with alcohols R2OH in the presence or absence of catalysts at temperatures of at least 160 DEG C., preferably from 165 DEG to 250 DEG C.
Bibliography:Application Number: DE19833327824