SYNTACTIC POLYURETHANE ELASTOMERS BASED ON LOW UNSATURATION POLYOLS FOR USE IN SUBSEA PIPELINE INSULATION

Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol having a low amount of terminal unsaturation, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it...

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Bibliographische Detailangaben
Hauptverfasser:	STEPHENSON, AMBER, GELFER, MIKHAIL Y, VYAKARANAM, KAMESH, MINNIKANTI, VENKAT S, BROWN, MARK
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol having a low amount of terminal unsaturation, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry. Les élastomères de polyuréthane syntactique sont préparés à l'aide d'un catalyseur exempt de mercure. L'élastomère est préparé à partir d'un mélange réactionnel contenant un polyéther polyol comprenant une faible proportion d'insaturations terminales, un allongeur de chaîne, un polyisocyanate et des microsphères. L'élastomère adhère bien à lui-même, ce qui le rend très utile pour l'isolation thermique de canalisations et d'autres structures présentant une géométrie complexe.