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:
Dec. 04, 2012
Filed:
Jun. 05, 2009
Xianghui Liu, Waukegan, IL (US);
Jingtao Zhang, Lansdale, PA (US);
David M. Lynn, Middleton, WI (US);
Xianghui Liu, Waukegan, IL (US);
Jingtao Zhang, Lansdale, PA (US);
David M. Lynn, Middleton, WI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
Abstract
Materials and methods for the generation of polyelectrolyte multilayers that can erode to release cationic components. The multilayers comprise layers that contain one or more cations and one or more charge-dynamic anionic polymers. Charge-dynamic anionic polymers contain side chains having removable functional groups. Removal of the functional groups results in a change in the net change in the charge of the polymer which can disrupt interactions between cations and the anionic polymers and facilitate release of cations.