1
Chunqing Liu, Stephen T Wilson: Mixed matrix membranes incorporating microporous polymers as fillers. UOP, Mark Goldberg, August 12, 2008: US07410525 (63 worldwide citation)

The present invention is for a polymer/polymer mixed matrix membrane and the use of such membranes in gas separation applications. More specifically, the invention involves the preparation of polymer/polymer mixed matrix membranes incorporating soluble polymers of intrinsic microporosity as micropor ...


2
Chunqing Liu, Man Wing Tang, Raisa Serbayeva, Lubo Zhou: High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes. UOP, Mark Goldberg, March 6, 2012: US08127936 (57 worldwide citation)

In the present invention high performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes and methods for making and using these membranes have been developed. The cross-linked polybenzoxazole and polybenzothiazole polymer membranes are prepared by: 1) first synthesizing polyimi ...


3
Chunqing Liu, Man Wing Tang, Raisa Serbayeva, Lubo Zhou: High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes. UOP, Mark Goldberg, March 6, 2012: US08127937 (57 worldwide citation)

In the present invention high performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes and methods for making and using these membranes have been developed. The cross-linked polybenzoxazole and polybenzothiazole polymer membranes are prepared by: 1) first synthesizing polyimi ...


4
Chunqing Liu, Jeffrey J Chiou, Stephen T Wilson: Cross-linkable and cross-linked mixed matrix membranes and methods of making the same. UOP, Mark Goldberg, February 3, 2009: US07485173 (31 worldwide citation)

The present invention is for novel high performance cross-linkable and cross-linked mixed matrix membranes and the use of such membranes for separations such as for CO2/CH4, H2/CH4 and propylene/propane separations. More specifically, the invention involves the preparation of cross-linkable and cros ...


5
Chunqing Liu, Beth McCulloch, Stephen T Wilson, Annabelle I Benin, Mark E Schott: Metal organic framework—polymer mixed matrix membranes. UOP, Mark Goldberg, December 29, 2009: US07637983 (29 worldwide citation)

Metal-organic framework (MOF)-polymer mixed matrix membranes (MOF-MMMs) have been prepared by dispersing high surface area MOFs (e.g. IRMOF-1) into a polymer matrix (e.g. Matrimid 5218). The MOFs allow the polymer to infiltrate the pores of the MOFs, which improves the interfacial and mechanical pro ...


6
Chunqing Liu, Santi Kulprathipanja, Mark E Schott, Stephen T Wilson: Ionic liquid-solid-polymer mixed matrix membranes for gas separations. UOP, Mark Goldberg, May 17, 2011: US07943543 (18 worldwide citation)

New ionic liquid-solid-polymer mixed matrix membranes were proposed for gas separations such as CO2 removal from natural gas or N2. For the new mixed matrix membranes, the solids such as carbon molecular sieves, microporous molecular sieves, MCM-41 type of mesoporous molecular sieves, or polymer of ...


7
Stephen F Yates, Matthew C McGuirl, Tihomir G Tonev, Chunqing Liu, Jeffrey Chiou, Amber Arzadon: Photo-crosslinked gas selective membranes as part of thin film composite hollow fiber membranes. Honeywell International, Shimokaji & Assoc PC, December 25, 2012: US08337598 (13 worldwide citation)

A thin film composite membrane comprises a core layer and a sheath UV-crosslinked polymer layer. The thin film composite membrane is produced by the co-extrusion of two polymer solutions. The core layer and the sheath layer can be separately optimized. The sheath layer may be UV-crosslinked to provi ...


8
Chunqing Liu, Stephen T Wilson, David A Lesch: UV-cross-linked membranes from polymers of intrinsic microporosity for liquid separations. UOP, Mark Goldberg, July 20, 2010: US07758751 (11 worldwide citation)

The present invention is for high performance UV-cross-linked membranes from polymers of intrinsic microporosity (PIMs) and the use of such membranes for separations. More specifically, the invention involves the methods of making UV-cross-linked membranes from PIMs. These membranes were prepared by ...


9
Stephen Yates, Rehan Zaki, Amber Arzadon, Chunqing Liu, Jeffrey Chiou: Thin film gas separation membranes. Honeywell International, Robert Desmond Esq, September 13, 2011: US08016124 (7 worldwide citation)

A gas separation membrane comprises a blend of polyethersulfone (PES) and aromatic polyimide polymers that may comprise a plurality of first repeating units of formula (I), wherein X1, X 2 and X3 are herein defined.


10
Chunqing Liu, Stephen T Wilson, Beth McCulloch: Mixed matrix membranes incorporating surface-functionalized molecular sieve nanoparticles and methods for making the same. UOP, Mark Goldberg, December 7, 2010: US07846496 (6 worldwide citation)

Mixed matrix membranes that are capable of separation and purification of gas mixtures are disclosed. These membranes comprise polymers that include dispersed therein nanomolecular sieve particles. In a preferred embodiment, the nanomolecular sieve particles contain attached functional groups to pre ...