PROCESSO PARA A PREPARACAO DE SOLUCOES AQUOSAS OU DISPERSOES DE POLIURETANAS,SOLUCOES OU DISPERSOES OBTENIVEIS DE ACORDO COM ESTE PROCESSO,BEM COMO SUA APLICACAO PARA A PRODUCAO DE REVESTIMENTOS,LACAS OU PELICULAS

The present invention relates to a process for the preparation of aqueous solutions or dispersions of polyurethanes, in which process prepolymers which have at least two free isocyanate groups and contain chemically-fixed hydrophilic groups and/or external emulsifiers which are not chemically fixed...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PEDAIN J, GRAMMEL J, NACHTKAMP K
Format:	Patent
Sprache:	por
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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