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:
Feb. 20, 2018
Filed:
Jan. 03, 2014
Walter J. Dressick, Waldorf, MD (US);
Kathryn J. Wahl, Alexandria, VA (US);
Dmitri Y. Petrovykh, Braga, PT;
Nabil D. Bassim, Silver Spring, MD (US);
Rhonda Michelle Stroud, Washington, DC (US);
Walter J. Dressick, Waldorf, MD (US);
Kathryn J. Wahl, Alexandria, VA (US);
Dmitri Y. Petrovykh, Braga, PT;
Nabil D. Bassim, Silver Spring, MD (US);
Rhonda Michelle Stroud, Washington, DC (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method, and an article made therefrom, of: contacting a substrate with a first solution of first polyelectrolyte chains to form a layer of the first polyelectrolyte on the substrate; and contacting the layer of the first polyelectrolyte with a second solution of second polyelectrolyte chains to form a layer of the second polyelectrolyte. The first polyelectrolyte has a polyanion or polycation chain. The second polyelectrolyte has a polyanion or polycation chain of a charge opposite to that of the first polyelectrolyte. The first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte chains in the aggregate-forming solution. The ionic species forms, via bridging interactions, aggregates of the polyelectrolyte chains that remain intact in the aggregate-forming solution during the contact.