Continuous process for the production of blocked isocyanates

A method for manufacturing blocked isocyanate curing agents in which a polyisocyanate and a blocking agent for the polyisocyanate are separately and continuously metered into a reaction zone in stoichiometric proportion under reaction conditions, and in which the reaction mixture is continuously wit...

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Bibliographische Detailangaben
Hauptverfasser:	PANANDIKER, K. A. PAI, TWEET, DAVID E
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A method for manufacturing blocked isocyanate curing agents in which a polyisocyanate and a blocking agent for the polyisocyanate are separately and continuously metered into a reaction zone in stoichiometric proportion under reaction conditions, and in which the reaction mixture is continuously withdrawn from the reaction zone to provide a blocked isocyanate curing agent product.