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:
Aug. 27, 2024
Filed:
Dec. 20, 2018
Applicant:
Ep Minerals, Llc, Reno, NV (US);
Inventors:
Scott Kevin Palm, Reno, NV (US);
Fangfu Zhang, Reno, NV (US);
Assignee:
U.S. Silica Company, Katy, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/14 (2006.01); B01J 20/30 (2006.01);
U.S. Cl.
CPC ...
B01J 20/14 (2013.01); B01J 20/3021 (2013.01); B01J 20/3078 (2013.01);
Abstract
This invention concerns highly effective functional additive products that comprise diatomite. More particularly, it concerns such functional additive products possessing particle size distributions which make them more effective as functional additives in filled systems. Higher effectiveness is demonstrated through lower Standard Sheen and/or reduced unit consumption relative to diatomite functional additives already in the public domain. Such products may also possess high brightness, low tint and/or an absence of detectable crystalline silica.