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:
Nov. 10, 2021
Applicant:
Entegris, Inc., Billerica, MA (US);
Inventors:
Reena Srivastava, Franklin, MA (US);
Baoquan Xie, Hopkinton, MA (US);
Frank V. Belanger, Webster, MA (US);
Rocky D. Gipson, Arroyo Grande, CA (US);
Assignee:
ENTEGRIS, INC., Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 20/20 (2006.01); B01D 53/02 (2006.01); B01J 20/28 (2006.01); B01J 20/282 (2006.01); B01J 20/30 (2006.01);
U.S. Cl.
CPC ...
B01J 20/20 (2013.01); B01D 53/02 (2013.01); B01J 20/28064 (2013.01); B01J 20/28066 (2013.01); B01J 20/282 (2013.01); B01J 20/3071 (2013.01); B01J 20/3085 (2013.01); B01D 2253/102 (2013.01); B01D 2253/306 (2013.01); B01D 2253/308 (2013.01); B01D 2257/70 (2013.01); B01D 2258/06 (2013.01);
Abstract
Provided are certain activated carbonaceous materials which have been treated with dilute mineral acids to modify their surface chemistry and morphology. The modified activated carbonaceous materials of the disclosure are useful in removing certain contaminants from gaseous streams. In one embodiment, the contaminants are compounds containing silicon and oxygen moieties, such as alkyl silanols and alkyl siloxanes. The modified activated carbonaceous materials can be incorporated into filters and filter systems.