SPOSOB RAFINACIE ASPON OBMEDZENE VODOROZPUSTNYCH POLYETEROV A ANEBO KOPOLYETEROV

At least partially water-soluble polyethers and/or copolyethers based on ethylene oxide and/or propylene oxide are purified from a catalyst, comprising ions of alkali metals or undesired admixtures, by acids or acidically reacting substances, e.g. ion exchangers, inorganic or polyhydridic organic ac...

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Bibliographic Details
Main Authors SMELY ZDENEK CSC, MADOBAS FRANTISEK, MACHO VENDELIN DRSC, KOMORA LADISLAV CSC, MALCOVSKY EUGEN CSC, KARASEK OTAKAR
Format Patent
LanguageEnglish
Published 15.08.1985
Edition3
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:At least partially water-soluble polyethers and/or copolyethers based on ethylene oxide and/or propylene oxide are purified from a catalyst, comprising ions of alkali metals or undesired admixtures, by acids or acidically reacting substances, e.g. ion exchangers, inorganic or polyhydridic organic acids, preferably trihydrogen phosphoric acid, in an amount of 0.3 to 2.0 mol per one mole of the catalyst.
Bibliography:Application Number: CS19830000422