	US 12,030,015 B2
	Crosslinked polymer membranes and methods of their production
Justin Tyler Vaughn, Medford, MA (US); and Benjamin James Sundell, Arlington, MA (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Feb. 19, 2021, as Appl. No. 17/180,399.
Application 17/180,399 is a division of application No. 15/970,169, filed on May 3, 2018, granted, now 10,960,361.
Claims priority of provisional application 62/501,363, filed on May 4, 2017.
Prior Publication US 2021/0170345 A1, Jun. 10, 2021
Int. Cl. B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 69/08 (2006.01); B01D 69/12 (2006.01); B01D 69/14 (2006.01); B01D 71/16 (2006.01); B01D 71/78 (2006.01); C08K 5/5419 (2006.01); C08L 1/12 (2006.01); B01D 53/52 (2006.01)

CPC B01D 53/228 (2013.01) [B01D 67/0009 (2013.01); B01D 67/0011 (2013.01); B01D 67/0013 (2013.01); B01D 67/002 (2013.01); B01D 67/006 (2013.01); B01D 67/0093 (2013.01); B01D 69/08 (2013.01); B01D 69/12 (2013.01); B01D 69/14 (2013.01); B01D 69/148 (2013.01); B01D 71/16 (2013.01); B01D 71/78 (2013.01); C08K 5/5419 (2013.01); C08L 1/12 (2013.01); B01D 53/52 (2013.01); B01D 2257/304 (2013.01); B01D 2257/50 (2013.01); B01D 2323/22 (2013.01); B01D 2323/30 (2013.01); B01D 2323/38 (2013.01); B01D 2323/46 (2013.01); B01D 2325/02 (2013.01); B01D 2325/20 (2013.01); B01D 2325/24 (2013.01); C08L 2203/16 (2013.01)]

11 Claims

1. An asymmetric crosslinked polymer membrane, comprising:

a porous support layer; and

a dense selective layer having a thickness between 80 nanometers and 100 micrometers,

wherein the dense selective layer comprises a polymer comprising a pendant nucleophile and a plurality of crosslinks comprising silanes formed from reaction with a weak acid catalyst, and

wherein a CO₂permeability through the membrane is at least 25 Barrer when measured in pure gas flow at 25° C. and 100 psia.