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:
Oct. 10, 2017
Filed:
Jul. 14, 2014
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Geraud J. Dubois, Los Altos, CA (US);
Victor Y. Lee, San Jose, CA (US);
Robert D. Miller, San Jose, CA (US);
Young-Hye Na, San Jose, CA (US);
Joseph Sly, San Jose, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 69/12 (2006.01); B01D 71/82 (2006.01); B01D 67/00 (2006.01); B01D 61/02 (2006.01); B01D 69/02 (2006.01); B01D 71/80 (2006.01); C08F 293/00 (2006.01);
U.S. Cl.
CPC ...
B01D 69/125 (2013.01); B01D 67/0006 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 71/80 (2013.01); B01D 61/027 (2013.01); B01D 71/82 (2013.01); B01D 2323/02 (2013.01); B01D 2323/30 (2013.01); B01D 2323/345 (2013.01); B01D 2323/36 (2013.01); B01D 2325/04 (2013.01); B01D 2325/14 (2013.01); B01D 2325/16 (2013.01); B01D 2325/18 (2013.01); B01D 2325/26 (2013.01); B01D 2325/36 (2013.01); C08F 293/005 (2013.01); C08F 2438/01 (2013.01);
Abstract
A thin film composite membrane (TFC) includes an active layer on a support. The active layer includes at least 8 barrier layers of star-polymers each having at least three linear polymers attached at a central core. Each of the barrier layers has a thickness between 5 and 50 nm, and the barrier layers have alternating charge.