PROCESS FOR FORMATION OF PREFORMED STABILIZER POLYOLS

A process is disclosed for formation of a preformed stabilizer for use in formation of graft polyols. The preformed stabilizer has a reduced level of transesterification products and results in less reactor fouling. The preformed stabilizer is prepared in the presence of phosphorous compounds, which...

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Bibliographic Details
Main Authors PETERS, DAVID, D, HUANG, MAO-YAO
Format Patent
LanguageEnglish
French
Published 13.01.2005
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A process is disclosed for formation of a preformed stabilizer for use in formation of graft polyols. The preformed stabilizer has a reduced level of transesterification products and results in less reactor fouling. The preformed stabilizer is prepared in the presence of phosphorous compounds, which reduces the unwanted transesterification products. La présente invention se rapporte à un procédé de formation d'un stabilisant préformé destiné à être utilisé dans la formation de polyols greffés. Le stabilisant préformé présente un niveau réduit de produits d'interestérification, et donne lieu à un encrassement moindre du réacteur. Le stabilisant préformé est préparé en présence de composés phosphoreux, ce qui réduit les produits d'interestérification indésirables.
Bibliography:Application Number: WO2004EP05659