KATALYSATOR UND VERFAHREN ZUR TRIMERISIERUNG VON ISOCYANATEN

Method for preparation of polyisocyanates and polyisocyanurates by catalytic cyclotrimerization of isocyanates uses catalyst based on a quaternary ammonium salt with imidazole, or one of its derivatives, as co-catalyst. An Independent claim is also included for a polymer composition produced by said...

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Bibliographic Details
Main Authors BERNARD, JEAN-MARIE, REVELANT, DENIS
Format Patent
LanguageGerman
Published 19.08.2004
Edition7
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOSITIONS BASED THEREON
HETEROCYCLIC COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Method for preparation of polyisocyanates and polyisocyanurates by catalytic cyclotrimerization of isocyanates uses catalyst based on a quaternary ammonium salt with imidazole, or one of its derivatives, as co-catalyst. An Independent claim is also included for a polymer composition produced by said method.
Bibliography:Application Number: DE19986018857T