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51. 发明专利

IN612DEN2012A "METHOD TO IMPROVE THE SELECTIVITY OF POLYBENZOXAZOLE MEMBRANES" 未知
公开(公告)号：IN612DEN2012A
公开(公告)日：2015-06-12
申请号：IN612DEN2012
申请日：2012-01-20
申请人： UOP LLC
发明人： LIU CHUNQING , MINKOV RAISA , TANG MAN-WING , ZHOU LUBO , BRICKER JEFFERY
IPC分类号： B01D71/06
摘要： The present invention discloses a novel method to improve the selectivities of polybenzoxazole (PBO) membranes prepared from aromatic polyimide membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for C02/CH4 and H2/CH4 separations compared to PBO membranes prepared from corresponding aromatic polyimide membranes without a poly(styrene sulfonic acid) polymer.

52. 发明专利

AU2012271128A1 Polyimide gas separation membranes 未知
公开(公告)号：AU2012271128A1
公开(公告)日：2013-10-03
申请号：AU2012271128
申请日：2012-05-31
申请人： UOP LLC
发明人： LIU CHUNQING , BOWEN TRAVIS C , HARBERT EMILY G , MINKOV RAISA , FAHEEM SYED A , OSMAN ZARA
IPC分类号： B01D71/64 , B01D61/02 , C02F1/44
摘要： The present invention discloses a new type of polyimide membrane with high permeances and high selectivities for gas separations and particularly for CO

53. 发明专利

CA2800200A1 HIGH PERMEANCE POLYIMIDE MEMBRANES FOR AIR SEPARATION 未知
公开(公告)号：CA2800200A1
公开(公告)日：2011-12-01
申请号：CA2800200
申请日：2011-05-10
申请人： UOP LLC
发明人： LIU CHUNQING , MINKOV RAISA , FAHEEM SYED A , BOWEN TRAVIS C , CHIOU JEFFREY J
IPC分类号： B01D71/64 , C08L79/08
摘要： The present invention discloses a new type of polyimide membranes including hollow fiber and flat sheet membranes with high permeances for air separations and a method of making these membranes. The new polyimide hollow fiber membranes have O2 permeance higher than 300 GPU and O2/N2 selectivity higher than 3 at 60°C under 308 kPa for O2/N2 separation. The new polyimide hollow fiber membranes also have CO2 permeance higher than 1000 GPU and single-gas selectivity for CO2/CH4 higher than 20 at 50°C under 791 kPa for CO2/CH4 separation.

54. 发明专利

CA2755925A1 POLYMER MEMBRANES DERIVED FROM AROMATIC POLYIMIDE MEMBRANES 未知
公开(公告)号：CA2755925A1
公开(公告)日：2010-09-30
申请号：CA2755925
申请日：2010-03-02
申请人： UOP LLC
发明人： LIU CHUNQING , SERBAYEVA RAISA , TANG MAN-WING , ZHOU LUBO , COUGHLIN PETER K
IPC分类号： B01D71/64 , C08J5/22
摘要： The present invention discloses a new type of high performance polymer membranes derived from aromatic polyimide membranes and methods for making and using these membranes. The polymer membranes described in the present invention were derived from aromatic polyimide membranes by crosslinking followed by thermal treating. The aromatic polyimide membranes were made from aromatic polyimide polymers comprising both pendent hydroxy functional groups ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone. The high performance polymer membranes showed significantly improved permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The high performance polymer membranes also showed significantly improved selectivity for gas separations compared to the thermal-treated but non-UV-crosslinked aromatic polyimide membranes. The high performance polymer membranes of the present invention are suitable for liquid, gas, and vapor separations, as well as for catalysis and fuel cell applications.

55. 发明专利

MY193273A TRANSPORT MEMBRANES FOR OLEFIN/PARAFFIN SEPARATIONS 未知
公开(公告)号：MY193273A
公开(公告)日：2022-09-29
申请号：MYPI2019006920
申请日：2018-05-30
申请人： UOP LLC
发明人： KARNS NICOLE K , LIU CHUNQING
IPC分类号： C07C7/144 , B01D69/10 , B01D69/12 , B01D71/06 , C07C9/00 , C07C11/02
摘要： The invention provides a high permeance and high selectivity facilitated transport membrane comprising a very small pore, nanoporous polyethersulfone (PES)/polyvinylpyrrolidone (PVP) blend support membrane, a hydrophilic polymer inside the very small nanopores on the skin layer surface of the support membrane, a thin, nonporous, hydrophilic polymer layer coated on the surface of the support membrane, and metal salts incorporated in the hydrophilic polymer layer coated on the surface of the support membrane and the hydrophilic polymer inside the very small nanopores, a method of making this membrane, and the use of this membrane for olefin/paraffin separations, particularly for propylene/propane and ethylene/ethane separations.

56. 发明专利

MY179259A HIGH HYDROCARBON RESISTANT CHEMICALLY CROSS-LINKED AROMATIC POLYIMIDE MEMBRANE FOR SEPARATIONS 未知
公开(公告)号：MY179259A
公开(公告)日：2020-11-03
申请号：MYPI2015703806
申请日：2014-06-18
申请人： UOP LLC
发明人： LIU CHUNQING , OSMAN ZARA
摘要： This invention relates to high hydrocarbon resistant chemically cross-linked aromatic polyimide polymers, membranes and methods for making and using these polymers and membranes. The high hydrocarbon resistant chemically cross-linked aromatic polyimide membrane described in the present invention comprises a plurality of repeating units of a first aromatic polyimide comprising hydroxyl groups cross-linked with a second aromatic polyimide comprising carboxylic acid groups via covalent ester bonds. These membranes exhibit high permeability and selectivity in separation of mixtures of gases and liquids.

57. 发明专利

RU2726354C1 ВЫСОКОЭЛАСТИЧНЫЕ ПОЛИМЕРНЫЕ МЕМБРАНЫ ДЛЯ ПРОЦЕССА РАЗДЕЛЕНИЯ 未知
公开(公告)号：RU2726354C1
公开(公告)日：2020-07-13
申请号：RU2019129743
申请日：2018-03-21
申请人： UOP LLC
发明人： LIU CHUNQING , KARNS NICOLE K
IPC分类号： B01D69/12 , B01D67/00 , B01D71/70 , C08J7/04 , C10L3/10
摘要： Изобретениеотноситсяк способуполучениявысокоэластичнойполимерноймембраны, включающемунанесениеслояармированногоколлоидальнойдвуокисьюкремнияпоперечно-сшитогополиорганосилоксанаповерхпористойстеклообразнойполимернойосновымембраныи слояпоперечно-сшитогохимическиполиорганосилоксановоговысокоэластичногополимераповерхслояармированногоколлоидальнойдвуокисьюкремнияпоперечно-сшитогополиорганосилоксана, вкоторомслойпоперечно-сшитогохимическиполиорганосилоксановоговысокоэластичногополимераповерхармированногоколлоиднойдвуокисьюкремнияпоперечно-сшитогополиорганосилоксанаобразуютпосредствомнанесенияразбавленногорастворасмесиполиорганосилоксанас концевойэпоксиднойгруппойи полиорганосилоксанас концевойаминогруппойнаверхнююповерхностьселективногослояармированногоколлоидальнойдвуокисьюкремнияпоперечно-сшитогополиорганосилоксана, вкоторомупомянутаяпористаястеклообразнаяполимернаяосновамембраныпредставляетсобойполимер, которыйвыбранизгруппы, состоящейизполиэфирсульфона, полисульфона, полиимида, полиакрилонитрила, ацетатцеллюлозы, триацетатцеллюлозыи ихсмесей, вкоторомполиорганосилоксанс концевойаминогруппойпредставляетсобойсополимераминоорганометилсилоксанаи диметилсилоксана, которыйсодержитмножествоповторяющихсязвеньевформулы (II) ииспользованиетакихмембрандляразделениясмесейдвухилиболеегазовилижидкостей. 3 н. и 3 з.п. ф-лы, 2 табл.

58. 发明专利

MY158363A METHOD TO IMPROVE THE SELECTIVITY OF POLYBENZOXAZOLE MEMBRANES 未知
公开(公告)号：MY158363A
公开(公告)日：2016-09-30
申请号：MYPI2012000376
申请日：2010-08-19
申请人： UOP LLC
发明人： LIU CHUNQING , MINKOV RAISA , TANG MAN-WING , ZHOU LUBO , BRICKER JEFFERY C
IPC分类号： B01D71/06 , B01D67/00 , B01D71/64 , C08G73/22
摘要： THE PRESENT INVENTION DISCLOSES A NOVEL METHOD TO IMPROVE THE SELECTIVITIES OF POLYBENZOXAZOLE (PBO) MEMBRANES PREPARED FROM AROMATIC POLYIMIDE MEMBRANES FOR GAS, VAPOR, AND LIQUID SEPARATIONS. THE PBO MEMBRANES THAT WERE PREPARED BY THERMAL TREATING AROMATIC POLYIMIDE MEMBRANES CONTAINING BETWEEN 0.05 AND 20 WT-% OF A POLY(STYRENE SULFONIC ACID) POLYMER. THESE POLYMERS SHOWED UP TO 95% IMPROVEMENT IN SELECTIVITY FOR C0₂/CH₄ AND H₂/CH₄ SEPARALIONS COMPARED TO PBO MEMBRANES PREPARED FROM CORRESPONDING AROMATIC POLYIMIDE MEMBRANES WITHOUT A POLY(STYRENE SULFONIC ACID) POLYMER.

59. 发明专利

MY158335A BLEND POLYMER MEMBRANES COMPRISING THERMALLY REARRANGED POLYMERS DERIVED FROM AROMATIC POLYIMIDES CONTAINING ORTHOPOSITIONED FUNCTIONAL GROUPS 未知
公开(公告)号：MY158335A
公开(公告)日：2016-09-30
申请号：MYPI2011004494
申请日：2010-02-18
申请人： UOP LLC
发明人： LIU CHUNQING , TANG MAN-WING
IPC分类号： C08J5/22 , B01D53/22 , C01B32/50 , C08L79/04
摘要： THE PRESENT INVENTION DISCLOSES BLEND POLYMER MEMBRANES COMPRISING THERMALLY REARRANGED POLYMERS DERIVED FROM AROMATIC POLYIMIDES CONTAINING ORTHO-POSITIONED FUNCTIONAL GROUPS AND METHODS FOR MAKING AND USING THESE BLEND POLYMER MEMBRANES. THE BLEND POLYMER MEMBRANES DESCRIBED IN THE CURRENT INVENTION ARE PREPARED BY HEAT TREATMENT OF BLEND POLYMER MEMBRANES COMPRISING AROMATIC POLYIMIDES CONTAINING ORTHO-POSITIONED FUNCTIONAL GROUPS SUCH AS -OH OR -SH GROUPS. IN SOME INSTANCES, AN ADDITIONAL CROSSLINKING STEP IS PERFORMED TO IMPROVE THE SELECTIVITY OF THE MEMBRANE. THESE BLEND POLYMER MEMBRANES HAVE IMPROVED FLEXIBILITY, REDUCED COST, IMPROVED PROCESSABILITY, AND ENHANCED SELECTIVITY AND/OR PERMEABILITY COMPARED TO THE COMPARABLE POLYMER MEMBRANES THAT COMPRISE A SINGLE POLYMER.

60. 发明专利

SG11201603043UA CROSS-LINKED RUBBERY POLYURETHANE-ETHER MEMBRANES FOR SEPARATIONS 未知
公开(公告)号：SG11201603043UA
公开(公告)日：2016-05-30
申请号：SG11201603043U
申请日：2014-09-22
申请人： UOP LLC
发明人： LIU CHUNQING , TRAN HOWIE Q
IPC分类号： B01D71/54

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