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. 14, 1991
Filed:
Sep. 18, 1989
Applicant:
Inventors:
Jean M Mayer, Smithfield, RI (US);
David L Kaplan, Stow, MA (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08B / ;
U.S. Cl.
CPC ...
106162 ; 1061631 ; 536 20 ; 523128 ; 523447 ;
Abstract
A method of forming a crosslinked chitosan polymer comprises contacting cosan with a basic solution of an epihalohydrin compound and heating the resulting mixture to a temperature and for a time sufficient to effect crosslinking of the chitosan. The crosslinked chitosan polymer exhibits water insolubility and biodegradability.