METHOD FOR PRODUCING ISOCYANATES

METHOD FOR PRODUCING ISOCYANATES

The invention relates to an improved multistage process for the continuous preparation of diisocyanates by reaction of the corresponding diamines with carbonic acid derivatives and alcohols to form low molecular weight monomeric urethanes and thermal dissociation of the latter.

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Hauptverfasser: SCHMIDT, ANDREAS, STROEFER, ECKHARD, GEISLER, BERNHARD, KLOETZER, MATTHIAS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator SCHMIDT, ANDREAS
STROEFER, ECKHARD
GEISLER, BERNHARD
KLOETZER, MATTHIAS
description The invention relates to an improved multistage process for the continuous preparation of diisocyanates by reaction of the corresponding diamines with carbonic acid derivatives and alcohols to form low molecular weight monomeric urethanes and thermal dissociation of the latter.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title METHOD FOR PRODUCING ISOCYANATES
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