MONOMERENARME NCO-HALTIGE PREPOLYMERE AUF DER BASIS VON ISOPHORONDIISOCYANAT

Production of solvent-free prepolymers with a residual monomer content of less than 2 wt.%, an isocyanate (NCO) content of 2-5 wt.% and a viscosity of 5000-20000 mPas at 23 deg C comprises reacting isophorone diisocyanate with an impact polyether having a hydroxy (OH) functionality of 1.8-2.0 in a N...

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Bibliographische Detailangaben
Hauptverfasser:	HOFACKER, STEFFEN, GERTZMANN, ROLF, FLECK, OLAF, BRUEMMER, HANNO, RUTTMANN, GERHARD
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Production of solvent-free prepolymers with a residual monomer content of less than 2 wt.%, an isocyanate (NCO) content of 2-5 wt.% and a viscosity of 5000-20000 mPas at 23 deg C comprises reacting isophorone diisocyanate with an impact polyether having a hydroxy (OH) functionality of 1.8-2.0 in a NCO/OH ratio of 1.5-2.2 in the presence of a catalyst at 20-100 deg C. An Independent claim is also included for a prepolymer defined and produced as above.