Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2003-11-14
2008-10-21
Oh, Taylor Victor (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S018500, C536S018600, C536S018700, C536S055300, C536S123100, C536S124000, C536S126000, C536S127000, C549S417000, C549S464000, C568S902000
Reexamination Certificate
active
07439352
ABSTRACT:
A process is provided for the preparation of anhydrosugar alcohols. The process involves heating a sugar alcohol or a monoanhydrosugar alcohol starting material in the presence of an acid catalyst, and subsequent purification of the anhydrosugar alcohol. In some embodiments of the present invention, film evaporators are used in distillation and purification of the anhydrosugar alcohols. Anhydrosugar alcohols of very high purity are achieved in the practice of the present invention. In some embodiments of the present invention, very high purities of the anhydrosugar alcohols are achieved without the use of organic solvents.
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Bloom Paul
Moore Kevin M.
Sanborn Alexandra J.
Archer-Daniels-Midland Company
Buchanan & Ingersoll & Rooney PC
Cochenour Craig G.
Oh Taylor Victor
Stewart III Duane A.
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