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:
Aug. 23, 2005
Filed:
Feb. 02, 2001
Charles B. Mallon, Belle Mead, NJ (US);
John S. Vames, Highland Park, NJ (US);
John I. Sarlis, Laval, Quebec, CA;
Benito See, Belle Mead, NJ (US);
David M. Trampe, Somerville, NJ (US);
Rathin Datta, Chicago, IL (US);
Charles B. Mallon, Belle Mead, NJ (US);
John S. Vames, Highland Park, NJ (US);
John I. Sarlis, Laval, Quebec, CA;
Benito See, Belle Mead, NJ (US);
David M. Trampe, Somerville, NJ (US);
Rathin Datta, Chicago, IL (US);
Other;
Abstract
Process for the production of polysaccharide ethers, e.g. cellulose ethers, are disclosed wherein salts formed during the process, e.g., sodium nitrate or sodium acetate, are converted to their corresponding acids and bases by means of an electric current, preferably in combination with a bipolar membrane and suitable catiion and/or anion membranes. The acids and bases recovered from the process can be recycled, thereby avoiding the need to provide for disposal of salts.