DMC catalyzed alkoxylation of esters

This invention relates to a novel process for preparing an aliphatic hybrid ester/ether polyol. This process simultaneously transesterifies and alkoxylates a mixture of at least one ester group containing compound which is free of ether groups, and at least one or more hydroxyl group containing comp...

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Bibliographic Details
Main Authors McDaniel Kenneth G, Adkins Rick L, Wardius Don S
Format Patent
LanguageEnglish
Published 15.11.2016
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
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Summary:This invention relates to a novel process for preparing an aliphatic hybrid ester/ether polyol. This process simultaneously transesterifies and alkoxylates a mixture of at least one ester group containing compound which is free of ether groups, and at least one or more hydroxyl group containing compound which is free of ester groups; with the proviso that the mixture has an overall hydroxyl number of less than or equal to 350; with at least one alkylene oxide; in the presence of a mixture of catalysts. The catalyst mixture comprises at least one DMC catalyst, and at least one non-alkaline transesterification catalyst.
Bibliography:Application Number: US201514976007