SPOSOB RAFINACIE ASPON OBMEDZENE VODOROZPUSTNYCH POLYETEROV A ANEBO KOPOLYETEROV

• Main Authors: SMELY ZDENEK CSC, MADOBAS FRANTISEK, MACHO VENDELIN DRSC, KOMORA LADISLAV CSC, MALCOVSKY EUGEN CSC, KARASEK OTAKAR
• Format: Patent
• Language: English
• Published: 15.08.1985
• Edition: 3
• 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

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...