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:
Jan. 28, 1997
Filed:
Apr. 10, 1995
Applicant:
Inventor:
James V Gruber, Somerville, NJ (US);
Assignee:
Amerchol Corporation, Edison, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07B / ;
U.S. Cl.
CPC ...
514 55 ; 514 54 ; 514 62 ; 536 187 ; 536 20 ;
Abstract
Polyglucosamine derivatives, e.g., chitosan, substituted with oxirane carboxylic acids, e.g., epoxysuccinic acid, are disclosed. The polyglucosamine derivatives can be prepared in a covalently bonded or ionically bonded form. Methods for preparing the polyglucosamine derivatives are disclosed as well as compositions containing the derivatives and uses for the derivatives.