FASTER CURE POLYASPARTIC RESINS FOR FASTER PHYSICAL PROPERTY DEVELOPMENT IN COATINGS

A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1: 0.95 to 1: 0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea...

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Bibliographische Detailangaben
Hauptverfasser:	STEWART, Matthew, JEFFRIES, Michael K, WADE, Robert A, SHAFFER, Myron W, PIERCE, Joseph, GUSTAVICH, Wendy S
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:	A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1: 0.95 to 1: 0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength. L'invention concerne une composition de polyaspartate qui comprend un produit de réaction d'une diamine et d'un diester ayant réagi à un rapport d'équivalents de diamine à des équivalents de diester de 1 : 0,95 à 1 : 0,50. Les compositions de polyaspartate selon l'invention peuvent être combinées à des polyisocyanates pour produire des compositions de polyurée, par exemple, des revêtements, des adhésifs, des agents d'étanchéité, des composites, des moulages et des films, qui présentent un temps de durcissement plus rapide ainsi qu'un temps de développement plus rapide pour des propriétés physiques telles que la dureté et la résistance à la traction.