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:
Oct. 25, 2011
Filed:
Aug. 17, 2004
Applicant:
Subramaniam Sabesan, Wilmington, DE (US);
Inventor:
Subramaniam Sabesan, Wilmington, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/14 (2006.01); A61F 2/00 (2006.01); A61F 13/00 (2006.01); C09D 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polymer articles are rendered antimicrobial by a process that includes contacting a chitosan solution with a polymer surface that inherently contains amino-reactive functional groups as polymerized. The process requires no pretreatment with agents such as oxidizing agents or plasma to generate the necessary functional groups at the polymer surface.