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. 05, 2013
Filed:
Nov. 17, 2008
Peter D. Wickert, St. Paul, MN (US);
Scott R. Culler, Burnsville, MN (US);
Jerald K. Rasmussen, Woodville, WI (US);
Peter D. Wickert, St. Paul, MN (US);
Scott R. Culler, Burnsville, MN (US);
Jerald K. Rasmussen, Woodville, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Precisely-shaped composites and methods for making these composites are disclosed. The method of this disclosure comprises introducing a precursor composition onto a production tool having at least one continuous surface and a plurality of cavities so as to fill at least a portion of the cavities with the precursor composition and wherein the precursor composition, upon curing, forms a composition having a shape corresponding to the cavities thereby resulting in a plurality of discrete, precisely-shaped particles having a porosity comprising one of the following: (a) 10 m/g or greater or (b) 5 kdalton or greater. The precisely-shaped particles have at least one essentially flat side. The precisely-shaped particles can be confined in a vessel and used for chromatographic applications.