The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2003
Filed:
Sep. 27, 2001
Willard C. Brinegar, Southport, ME (US);
Michael Wohlers, Eschborn, DE;
Michael A. Hubbard, Pittsford, NY (US);
Edward G. Zey, Corpus Christi, TX (US);
George Kvakovszky, Slidell, LA (US);
Thomas H. Shockley, Corpus Christi, TX (US);
Rainer Roesky, Saint Quentin Fallavier Cedex 16, FR;
Uwe Dingerdissen, Seeheim-Jugenheim, DE;
Werner Kind, Kelkheim, DE;
Other;
Abstract
A process is described for continuous production of anhydrosugar alcohol by continuous introducing of sugar alcohols and/or monoanhydrosugar alcohols into a reaction vessel and dehydration in the presence of an acid catalyst and solvent in which the resultant reaction product is soluble. Water and the solvent having the dissolved reaction product are each cointinuously removed from the reaction vessel. The reaction product is separated from the removed solvent and the product is optionally purified to a purity of 99.0% the solvent is recycled in the reaction vessel.