LOW-TEMPERATURE CURING COATING COMPOSITIONS

The present invention is directed towards a coating composition comprising a film-forming polymer comprising active hydrogen-containing functional groups; a blocked polyisocyanate curing agent comprising a blocking group derived from a blocking agent comprising an alpha-hydroxy amide, ester or thioe...

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Bibliographische Detailangaben
Hauptverfasser:	SANDALA, Michael G, WILSON, Craig A, NOVAK, Carolyn A.K, ZHOU, Hongying, DACKO, Christopher A, TILLMAN, Herbert, PUODZIUKYNAITE, Egle, JONES, Justin M, BICE, Jo-Ann E, SYPUT, Richard F, ESWARAKRISHNAN, Venkatachalam, RO, Hyun Wook
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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 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:	The present invention is directed towards a coating composition comprising a film-forming polymer comprising active hydrogen-containing functional groups; a blocked polyisocyanate curing agent comprising a blocking group derived from a blocking agent comprising an alpha-hydroxy amide, ester or thioester; and a curing catalyst that does not contain tin, lead, iron, zinc or manganese. Also disclosed are coatings, coated substrates, and methods of coating a substrate. La présente invention concerne une composition de revêtement comprenant un polymère filmogène comprenant des groupes fonctionnels contenant de l'hydrogène actif; un agent de durcissement de polyisocyanate bloqué comprenant un groupe de blocage dérivé d'un agent de blocage comprenant un alpha-hydroxy amide, ester ou thioester; et un catalyseur de durcissement qui ne contient pas d'étain, de plomb, de fer, de zinc ou de manganèse. L'invention porte également sur des revêtements, des substrats revêtus et sur des procédés de revêtement d'un substrat.