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:
May. 13, 2025
Filed:
Mar. 15, 2022
U.s. Silica Company, Katy, TX (US);
Ramanan Pitchumani, Hagerstown, MD (US);
William Richard Wells, Hancock, MD (US);
David Earl Weller, Jr., Greencastle, PA (US);
U.S. Silica Company, Katy, TX (US);
Abstract
Disclosed herein are methods and apparatus for producing nanometer scale particles for electrochemical materials utilizing an electrosterically stabilized slurry in a media mill. The method includes adding to a media mill a feed substrate suspension including a liquid carrier medium and electrochemical feed substrate particles. The method further includes adding to the feed substrate suspension in the media mill an electrosteric dispersant that includes a polyelectrolyte. Still further, the method includes operating the media mill for a period of time to comminute the feed substrate particles, thereby forming nanometer scale particles having a (D) particle size of less than about one micron, and recirculating for further grinding the nanometer scale particles from the media mill.