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:
Apr. 07, 2026
Filed:
Jun. 23, 2021
Applicant:
Entegris, Inc., Billerica, MA (US);
Inventors:
James Hamzik, North Billerica, MA (US);
Kwokshun Cheng, Nashua, NH (US);
Jad A. Jaber, Westford, MA (US);
Nicholas J. Filipancic, Medford, MA (US);
Assignee:
Entegris, Inc., Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 177/02 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); B01D 71/40 (2006.01); B01D 71/56 (2006.01);
U.S. Cl.
CPC ...
C09D 177/02 (2013.01); B01D 67/00931 (2022.08); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 69/1251 (2022.08); B01D 71/401 (2022.08); B01D 71/56 (2013.01); B01D 2239/0478 (2013.01); B01D 2325/36 (2013.01);
Abstract
Provided are certain membranes useful in the filtration of liquids and removal of various contaminants therein. In certain aspects the membranes have as one component a polyamide such as Nylon 11 and/or Nylon 12. Also provided is methodology for manufacturing such membranes and their use in filtration and purification of liquids. Membranes of the disclosure thus prepared exhibit superior acid stability when compared to polyamide membranes prepared from Nylon 6 or Nylon 6,6.