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:
Mar. 17, 1981
Filed:
Apr. 11, 1979
Lars A Naslund, Morganville, NJ (US);
Allen I Laskin, New York, NY (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
Abstract
A composition containing a heteropolysaccharide produced by the action of bacteria of the genus Xanthomonas, wherein the heteropolysaccharide has been modified by heating, at a temperature of at least 100.degree. C. for 1 to about 300 minutes, an aqueous solution containing native, untreated heteropolysaccharide produced by the action of bacteria of the genus Xanthomonas, and at least about 0.5 weight percent salt. The solution is preferably filtered or otherwise treated to separate the modified heteropolysaccharide from bacterial cells, cellular debris and other materials, prior to being put to use in, e.g., oil recovery processes, additive for foodstuffs, pharmaceutical preparations, etc.