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:
Jul. 19, 2011
Filed:
Sep. 30, 2010
Applicants:
Hassan Sahouani, Hastings, MN (US);
Sanat Mohanty, Minneapolis, MN (US);
Cristin E. Moran, Woodbury, MN (US);
Inventors:
Hassan Sahouani, Hastings, MN (US);
Sanat Mohanty, Minneapolis, MN (US);
Cristin E. Moran, Woodbury, MN (US);
Assignee:
3M Innovative Properites Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of making encapsulated chromonic nanoparticles includes exposing crosslinked chromonic nanoparticles to an acid selected from the group consisting of carbonic acid, phosphoric acid, lactic acid, citric acid, boric acid, sulfuric acid, and mixtures thereof in the presence of water to encapsulate the crosslinked nanoparticles in a shell comprising a complex comprising the chromonic material, the multivalent cations, and the acid anions.