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. 30, 2026
Filed:
Sep. 21, 2021
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Bob Tse-Weng Lin, Branchburg, NJ (US);
Maria Nargiello, Piscataway, NJ (US);
Bernhard Resch, Allentown, PA (US);
Karl W. Gallis, Perryville, MD (US);
William J. Hagar, Perryville, MD (US);
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/193 (2006.01); C09D 7/42 (2018.01); C09D 7/61 (2018.01);
U.S. Cl.
CPC ...
C01B 33/193 (2013.01); C09D 7/42 (2018.01); C09D 7/61 (2018.01); C01P 2004/32 (2013.01); C01P 2006/12 (2013.01); C01P 2006/19 (2013.01);
Abstract
Spherical, low surface area precipitated silicas are useful as matting agents in powder coatings. Corresponding matte powder coating compositions and methods of preparing matte powder coatings containing the silicas are provided.