Process and products of purification of anhydrosugar alcohols

Details Process and products of purification of anhydrosugar alcohols Process and products of purification of anhydrosugar alcohols

G - Physics

01

N

G01N 21/29 (2006.01) G01N 1/44 (2006.01) G01N 21/33 (2006.01) G01N 21/59 (2006.01) C07B 63/00 (2006.01) C07D 493/04 (2006.01) C08G 63/16 (2006.01)

Patent

CA 2629484

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 threof. Preferably, the purification is by distillation followed by recrystallization from methanol, ethanol or ethylene glycol. A test for determining the purity of the anhydrosugar alcohol 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. The 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.

Affiliated with

Also associated with

Rating

Process and products of purification of anhydrosugar alcohols does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and products of purification of anhydrosugar alcohols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and products of purification of anhydrosugar alcohols will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1797964