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. 26, 1999
Filed:
Jun. 30, 1997
Applicant:
Inventors:
Wolfgang G Glasser, Blacksburg, VA (US);
Rajesh K Jain, Blacksburg, VA (US);
Assignee:
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08B / ; C04B / ; H01F / ;
U.S. Cl.
CPC ...
536 20 ; 1061622 ; 252 / ; 252 6253 ; 252 6256 ;
Abstract
Method for magnetizing crosslinked chitosan support material involving the treatment of carboxyl group-containing, crosslinked chitosan gels with solutions of ferrous chloride followed by treatment with dilute aqueous alkali and then oxidation with molecular oxygen gas to produce highly-enriched magnetized chitosan particles, beads, films and/or coatings.