PURIFICATION PROCESS AND PURIFICATION PRODUCTS OF ANHYDROSUGAR ALCOHOLS

PROBLEM TO BE SOLVED: To provide a purified anhydrosugar alcohol that has a purity of at least 99.8% and is substantially colorless.SOLUTION: The anhydrosugar alcohol is purified by distillation, recrystallization from methanol, ethanol or ethylene glycol, melt recrystallization, or a combination th...

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Hauptverfasser:	WITTELER HELMUT B, RIETH JOCHEN, WOHLERS MICHAEL, ZEY EDWARD G, CHARBONNEAU LARRY F, KOHLE NORBERT, SHOCKLEY THOMAS H, HUBBARD MICHAEL A, KVAKOVSZKY GEORGE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON HETEROCYCLIC COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a purified anhydrosugar alcohol that has a purity of at least 99.8% and is substantially colorless.SOLUTION: The anhydrosugar alcohol is purified by distillation, recrystallization from methanol, ethanol or ethylene glycol, melt recrystallization, or a combination thereof.