NOVEL CATALYST FOR SELECTIVE ISOCYANATE DIMERIZATION

PROBLEM TO BE SOLVED: To provide a method for dimerizing an aliphatic diisocyanate, which uses a linear aliphatic diisocyanate dimerization catalyst being easily prepared, and exhibiting improved selectivity in the uretodione formation. SOLUTION: In the method for dimerizing an aliphatic diisocyanat...

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1. Verfasser:	KOECHER JUERGEN
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for dimerizing an aliphatic diisocyanate, which uses a linear aliphatic diisocyanate dimerization catalyst being easily prepared, and exhibiting improved selectivity in the uretodione formation. SOLUTION: In the method for dimerizing an aliphatic diisocyanate, one or more aliphatic isocyanates are reacted in the presence of one or more sulfonamide salts represented by formula (I), wherein R1is a perfluoroalkyl group; and Ion+is an organic or inorganic cation. COPYRIGHT: (C)2008,JPO&INPIT