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:
May. 30, 2006
Filed:
Jun. 07, 2002
Applicant:
Martin Prinz, Leobendorf, AT;
Inventor:
Martin Prinz, Leobendorf, AT;
Assignee:
Mucobiomer Biotechnologische Forschungs- und Entwicklungs GESmbH, Leobendorf, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N 43/04 (2006.01); C07H 5/04 (2006.01); C08B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
By the reaction of chitosan with iminothiolactones such as 2-iminothiolane, thiol groups can be covalently immobilized on the polymer. The resulting chitosan derivatives exhibit thiol groups which are capable of forming inter- and intramolecular disulfide bonds. Because of this crosslinking process the viscosity of polymer solutions is strongly improved. Moreover, the cationic character of the polymer is strongly improved. Preferred applications of these novel chitosan derivatives are their cosmetic and pharmaceutical use