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:
Nov. 15, 2022
Filed:
Feb. 24, 2016
Applicant:
Medtrade Products Limited, Crewe, GB;
Inventors:
Assignee:
MEDTRADE PRODUCTS LIMITED, Crewe, GB;
Primary Examiner:
Int. Cl.
CPC ...
C08B 37/08 (2006.01); A61L 26/00 (2006.01); C08L 5/08 (2006.01);
U.S. Cl.
CPC ...
C08B 37/003 (2013.01); A61L 26/008 (2013.01); A61L 26/009 (2013.01); A61L 26/0023 (2013.01); A61L 26/0066 (2013.01); C08L 5/08 (2013.01); A61L 2300/232 (2013.01); A61L 2300/404 (2013.01); A61L 2300/418 (2013.01); A61L 2400/04 (2013.01);
Abstract
The present invention relates to a process for producing a low endotoxin alkali chitosan, and also to a process for producing low endotoxin neutral chitosan, chitosan salt and chitosan derivatives, and to the products of such processes. The process comprises contacting chitosan with an alkali solution to form a mixture and leaving the mixture for at least about 12 hours. The low endotoxin alkali chitosan may be used the manufacture of other useful chitosan based products.