LOW-TEMPERATURE STORAGE STABLE LIQUID DIPHENYLMETHANE DIISOCYANATES

LOW-TEMPERATURE STORAGE STABLE LIQUID DIPHENYLMETHANE DIISOCYANATES The instant invention is directed to novel low temperature, storage stable liquid diphenylmethane diisocyanates and to the method of their preparation. The diisocyanates of the instant invention are produced by reacting diphenylmeth...

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Bibliographische Detailangaben
Hauptverfasser:	REIFF, HELMUT F, PANTONE, RICHARD S
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS 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 METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	LOW-TEMPERATURE STORAGE STABLE LIQUID DIPHENYLMETHANE DIISOCYANATES The instant invention is directed to novel low temperature, storage stable liquid diphenylmethane diisocyanates and to the method of their preparation. The diisocyanates of the instant invention are produced by reacting diphenylmethane diisocyanates having a specified 2,4'isomer content with propylene glycol or poly-1,2-propylene ether glycols. It has been surprisingly found that the products of the instant invention are both stable and liquid at -5.degree.C for at least 48 hours. In fact, in many instances, the products of the instant invention show no tendency to crystallize even when stored at -22.degree.C for weeks.