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:
Jun. 16, 2015
Filed:
Jun. 17, 2011
Del R. Lawson, Cottage Grove, MN (US);
James I. Hembre, Plymouth, MN (US);
Jerald K. Rasmussen, Woodville, WI (US);
Catherine A. Bothof, Stillwater, MN (US);
Kannan Seshadri, Woodbury, MN (US);
Robert T. Fitzsimons, Jr., Minneapolis, MN (US);
Andrew W. Rabins, St. Paul, MN (US);
Taib K. Ansera, St. Paul, MN (US);
Del R. Lawson, Cottage Grove, MN (US);
James I. Hembre, Plymouth, MN (US);
Jerald K. Rasmussen, Woodville, WI (US);
Catherine A. Bothof, Stillwater, MN (US);
Kannan Seshadri, Woodbury, MN (US);
Robert T. Fitzsimons, Jr., Minneapolis, MN (US);
Andrew W. Rabins, St. Paul, MN (US);
Taib K. Ansera, St. Paul, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
Semi-interpenetrating polymeric networks are described. More specifically, the semi-interpenetrating polymeric networks include at least two polymers that are closely associated. The first polymer is an ionic polymer that is not crosslinked. The second polymer is a cross-linked polymer that can be either another ionic polymer or a non-ionic polymer. Methods of making the semi-interpenetrating polymeric networks, articles containing the semi-interpenetrating polymeric networks, and methods of using the semi-interpenetrating polymeric networks are also described. The semi-interpenetrating polymeric networks can function as ion exchange resins.