Composition, for use in paint, based on a mixture of emulsion(s) and of dispersion(s) of polyol polymer and coating(s) produced therefrom

The subject of the present invention is a composition comprising: at least one masked or unmasked polyisocyanate in the form of an aqueous emulsion whose mean size is between 0.1 and 10 micrometers and preferably smaller than 2 and larger than 0.2 micrometers, at least one polyhydroxylated polymer,...

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Bibliographische Detailangaben
Hauptverfasser:	LANGLOIS, BRUNO, GUERIN, GILLES, PONCE, ARNAULD
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The subject of the present invention is a composition comprising: at least one masked or unmasked polyisocyanate in the form of an aqueous emulsion whose mean size is between 0.1 and 10 micrometers and preferably smaller than 2 and larger than 0.2 micrometers, at least one polyhydroxylated polymer, advantageously a polyol, in the form of a second aqueous dispersion whose mean size is between 10 and 200 nanometers. This composition is defined in that the quantity of polyol in the mixture is chosen so as to meet one of the following two constraints: the polyol content, expressed in mass per cent, is at least equal to 35-0.75 R, advantageously at least equal to 40-0.75 R, preferably to 45-0.75 R; the polyol content, expressed in mass per cent, does not exceed 45-2 R, advantageously does not exceed 40-2 R, preferably 35-2 R with R equal to the ratio of the mean size (d50) of the emulsion to that of the polyol dispersion. Application to organic synthesis.