PROCESS AND PRODUCTS OF PURIFICATION OF ANHYDROSUGAR ALCOHOLS

A process for the formation of a purified anhydrosugar alcohol is disclosed, whereby the resultant purified anhydrosugar alcohol has a purity of at least 99.8 % and is substantially colorless. The anhydrosugar alcohol is purified by distillation, recrystallization from methanol, ethanol or ethylene...

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Hauptverfasser: WOHLERS, MICHAEL, RIETH, JOCHEN, KVAKOVSZKY, GEORGE, CHARBONNEAU, LARRY F, WITTELER, HELMUT B, SHOCKLEY, THOMAS H, KOHLE, NORBERT, HUBBARD, MICHAEL A, ZEY, EDWARD G
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creator WOHLERS, MICHAEL
RIETH, JOCHEN
KVAKOVSZKY, GEORGE
CHARBONNEAU, LARRY F
WITTELER, HELMUT B
SHOCKLEY, THOMAS H
KOHLE, NORBERT
HUBBARD, MICHAEL A
ZEY, EDWARD G
description A process for the formation of a purified anhydrosugar alcohol is disclosed, whereby the resultant purified anhydrosugar alcohol has a purity of at least 99.8 % and is substantially colorless. The anhydrosugar alcohol is purified by distillation, recrystallization from methanol, ethanol or ethylene glycol, melt recrystallization, or a combination thereof. Preferably, the purificati on is by distillation followed by recrystallization from methanol, ethanol or ethylene glycol. A test for determining the purity of the anhydrosugar alcoh ol is disclosed, wherein the color of the anhydrosugar alcohol after annealing at a temperature of at least 260 ~C for at least four hours is examined. Alternatively, purity can be determined by examination of ultraviolet (UV) transmittance of the purified anhydrosugar alcohol at various wavelengths. T he purified anhydrosugar alcohol may be incorporated into a polymer such as a polyester, which may in turn be used to form such articles of manufacturing as containers, optical disks, fibers, sheets and films.
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subjects APPARATUS SPECIALLY ADAPTED THEREFOR
CHEMISTRY
COMPOSITIONS BASED THEREON
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PRODUCTION OF SUCROSE
SEPARATION
SUGAR INDUSTRY
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
title PROCESS AND PRODUCTS OF PURIFICATION OF ANHYDROSUGAR ALCOHOLS
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