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:
Mar. 24, 2026
Filed:
Mar. 21, 2022
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Yujun Liu, Pearland, TX (US);
Xue Chen, Manvel, TX (US);
Stephen W. King, Braselton, GA (US);
Towhid Hasan, Midland, MI (US);
Jerrod Ruddick, Pearland, TX (US);
James York, Fulshear, TX (US);
Amarnath Singh, Pearland, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/10 (2006.01); B01J 20/281 (2006.01); B01J 20/34 (2006.01);
U.S. Cl.
CPC ...
B01J 20/262 (2013.01); B01J 20/103 (2013.01); B01J 20/281 (2013.01); B01J 20/34 (2013.01); B01J 2220/56 (2013.01); B01J 2220/60 (2013.01);
Abstract
The present invention describes a method to remove metals present in a mixture comprising one or more organic amines comprising the step of contacting the mixture with a silica-polyethyleneimine adsorbent.