HYDROLYTICALLY STABLE POLYURETHANE NANOCOMPOSITES

PROBLEM TO BE SOLVED: To provide a hydrolytically stable polyurethane nanocomposite comprising a solid polyester-polyurethane polymer containing proton scavenger nanoparticles in a substantially dispersed form.SOLUTION: The water-resistance properties of polyester-based polyurethanes are remarkably...

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Bibliographische Detailangaben
Hauptverfasser:	GREGORY R BROWN, ELIZABETH A FLORES, NAI Z HUANG, ALEXANDER V LUBNIN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a hydrolytically stable polyurethane nanocomposite comprising a solid polyester-polyurethane polymer containing proton scavenger nanoparticles in a substantially dispersed form.SOLUTION: The water-resistance properties of polyester-based polyurethanes are remarkably enhanced, without adversely affecting the transparency properties of these materials to any significant degree, by including in the polymer a substantially dispersed nano-particle proton scavenger. The hydrolytic stability and water-resistance properties of polyester-based polyurethanes are remarkably enhanced and match those of polycarbonate-based polyurethanes, without adversely affecting the transparency of these materials to any significant degree, by including in the polymer a substantially dispersed nano-particle proton scavenger such as calcium carbonate.