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. 16, 2007
Filed:
Oct. 01, 2004
Maksim Lvovich Beljanin, Tomsk, RU;
Evgeniy Danilovich Goldberg, Tomsk, RU;
Alexandr Michailovich Dygai, Tomsk, RU;
Viktor Dmitrievich Filimonov, Tomsk, RU;
Veniamin Abramovich Khazanov, Tomsk, RU;
Maksim Lvovich Beljanin, Tomsk, RU;
Evgeniy Danilovich Goldberg, Tomsk, RU;
Alexandr Michailovich Dygai, Tomsk, RU;
Viktor Dmitrievich Filimonov, Tomsk, RU;
Veniamin Abramovich Khazanov, Tomsk, RU;
Abstract
A method of obtaining D-glucuronic acid. The D-glucuronic acid and its derivatives (lactone, salts, amides, etc.) are biologically high-active compounds, which are widely used in medicine and pharmaceutical chemistry for the synthesis of modified drugs as well as used as food additives, skin-care preparations, and the like. This invention provides an environmentally friendly method of obtaining D-glucuronic acid which has widespread operational possibilities. The D-glucuronic acid is obtained by heating the salts of 1,2-0-isopropylidene-D-glucuronic acid in a water-containing solution in the presence of an acid agent, for which sulphonic acid cation exchanger resins are used.