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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.:

US 7101996 B1

PDFFull Text
Date of Patent:
Sep. 05, 2006

Filed:

Sep. 23, 2003

Process for preparing purified fractions of hemicellulose and cellulose-hemicellulose complexes from alkali treated fiber and products made by the process

Applicant:

Roman Skuratowicz, Hickory Hills, IL (US);

Inventor:

Roman Skuratowicz, Hickory Hills, IL (US);

Assignee:

Corn Products International, Inc., Westchester, IL (US);

Attorney:

Norris, McLaughlin & Marcus

Primary Examiner:

Shaojia Anna Jiang

Assistant Examiner:

Everertt White

Int. Cl.
CPC ...
C08B 1/00 (2006.01); C07H 1/00 (2006.01); C07H 1/06 (2006.01); C07H 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for obtaining purified hemicellulose, cellulose and cellulose-hemicellulose complexes comprising the steps of adding alcohol to caustic liquor from alkali extraction of fiber to precipitate the hemicellulose and the simultaneous, or about simultaneous, density separation of hemicellulose from the caustic liquor. The alcohol transforms the soluble high molecular weight hemicellulose into a light precipitate which floats on top of the caustic liquor solution. The caustic liquor can be subjected to a second separation step whereby the insoluble components (e.g. cellulose and cellulose-hemicellulose complexes) can be removed from the caustic liquor.

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Skuratowicz, Roman. (2006). Process for preparing purified fractions of hemicellulose and cellulose-hemicellulose complexes from alkali treated fiber and products made by the process (U.S. Patent No. 7101996). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7101996

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