LONG CHAIN POLYETHER POLYOLS

• Main Authors: BUCK, BARBARA, J, REESE, JACK, R., II, RODBERG, STEVEN, J, PAZOS, JOSE, F, HAIDER, KARL, W, WAGNER, DANIEL, R
• Format: Patent
• Language: English; Spanish
• Published: 04.03.2009
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention provides a long-chain polyether polyol having a number average molecular weight of greater than about 500 g/mole and produced by alkoxylating a polyoxyethylene-containing initiator with an alkylene oxide in the presence of a basic catalyst having at least one cation thereof chelated by the polyoxyethylene-containing initiator. The inventive long-chain polyether polyols may be used to provide flexible polyurethane foams and non-cellular polyurethanes. La presente invención proporciona un poliol poliéter de cadena larga que tiene un peso molecular medio mayor de 500 g/mol aproximadamente y que es producido mediante la alcoxilación de un iniciador que contiene polioxietileno con un óxido de alquileno en un presencia de un catalizador básico que tiene al menos un catión del mismo quelado por el iniciador que contiene polioxietileno. Los polioles poliéter de cadena larga de la invención pueden ser utilizados para proporcionar espumas de poliuretano flexibles y poliuretanos no celulares.