ClassID:

100173

C08J5/2237 - CPC Classification

Classification description:

Manufacture of articles or shaped materials containing macromolecular substances; Manufacture of shaped structures of ion-exchange resins; Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds; Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine

Recent Application in this class:
#1
20260128341
2026-05-07

REINFORCED ION-CONDUCTING MEMBRANE

#2
20260062547
2026-03-05

CROSSLINKING OF AROMATIC POLYMERS FOR ANION EXCHANGE MEMBRANES

#3
20250289918
2025-09-18

METHOD FOR PRODUCING PELLETS, PELLETS AND ION EXCHANGE FILM

#4
20240254296
2024-08-01

PROCESS FOR PRODUCING ANION EXCHANGERS

#5
20240030473
2024-01-25

ELECTROLYTE MATERIAL, MEMBRANE ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL

#6
20230044103
2023-02-09

Fluorinated-aliphatic hydrocarbon based stable anion-exchange membrane and its method of preparation thereof

#7
20230014901
2023-01-19

CATION EXCHANGE POLYMERS AND ANION EXCHANGE POLYMERS AND CORRESPONDING (BLEND) MEMBRANES MADE OF POLYMERS CONTAINING HIGHLY FLUORINATED AROMATIC GROUPS, BY WAY OF NUCLEOPHILIC SUBSTITUTION

#8
20220352534
2022-11-03

BIPOLAR IONOMER MEMBRANE

#9
20220311037
2022-09-29

Composition for fuel cell membranes and a process for the preparation thereof

#10
20220282012
2022-09-08

Fluoropolymer hybrid composite

#11
20220041765
2022-02-10

Fluorosulfonyl group-containing compound, fluorosulfonyl group-containing monomer, and their production methods

#12
20220025139
2022-01-27

Flexible polymer electrolyte

#13
20220010047
2022-01-13

Polymer composition and ion-exchange membrane

#14
20210332171
2021-10-28

Polymer, method for producing polymer, and method for producing membrane

#15
20210245148
2021-08-12

Composite particles and ion exchange membrane

#16
20210198397
2021-07-01

METHOD FOR PRODUCING PELLETS, PELLETS AND ION EXCHANGE FILM

#17
20210108067
2021-04-15

CROSSLINKING OF AROMATIC POLYMERS FOR ANION EXCHANGE MEMBRANES

#18
20200266472
2020-08-20

Ion exchange membrane suitable for redox flow battery

#19
20200203751
2020-06-25

Process

#20
20200190233
2020-06-18

Fluorosulfonyl group or sulfonic acid group-containing polymer, its production method and its application

#21
20200185769
2020-06-11

INORGANIC/ORGANIC COMPOSITIONS

#22
20200173046
2020-06-04

ION EXCHANGE MEMBRANE AND ELECTROLYZER

#23
20200153018
2020-05-14

Electrolyte solution and method for producing same, continuously dissolving facility, electrolyte membrane, electrode catalyst layer, membrane electrode assembly and fuel cell

#24
20200071445
2020-03-05

Fluorinated proton-conducting inorganic particles and use of said particles in proton-conducting membranes

#25
20190345301
2019-11-14

Proton-conducting inorganic particles, method for the preparation thereof, and use thereof to form a fuel cell membrane

#26
20190321814
2019-10-24

Ion exchange separation membrane, electrochemical cell including same, flow cell and fuel cell, and manufacturing method thereof

#27
20190203002
2019-07-04

Ion exchange membrane, method for producing ion exchange membrane, and electrolyzer

#28
20190123373
2019-04-25

Ion conductive polymer electrolyte membrane having ion channel size controlled according to phase separation improvement effect of polar solvent during casting of ion conductive polymer electrolyte membrane, and preparation method therefor

#29
20190100845
2019-04-04

Ion exchange membrane and electrolyzer

#30
20190067722
2019-02-28

Liquid composition, process for its production, and process for producing membrane-electrode assembly for polymer electrolyte fuel cells

#31
20190036142
2019-01-31

Bipolar ionomer membrane

#32
20190027767
2019-01-24

Anion exchange resin, electrolyte membrane, binder for forming electrode catalyst layer, fuel cell electrode catalyst layer and fuel cell

#33
20180371194
2018-12-27

Fluoropolymer hybrid composite

#34
20180312649
2018-11-01

Hybrid fluoropolymer composites

#35
20180251631
2018-09-06

Perfluorinated ionomer nanoparticle dispersion solution, and preparation method therefor

#36
20180198147
2018-07-12

Fluorine-based nanocomposite membrane comprising polyhedral oligomeric silsesquioxanes having proton donor and proton acceptor, and method for manufacturing same

#37
20180147541
2018-05-31

Ion-exchange membrane with molecular barrier

#38
20180141036
2018-05-24

Ion exchange membrane

#39
20180126370
2018-05-10

Ion exchange membrane

#40
20180108932
2018-04-19

Process for the recovery of ionomer

#41
20180079872
2018-03-22

Methods for producing liquid composition, coating liquid for catalyst layer and membrane electrode assembly

#42
20180030225
2018-02-01

Film layers and methods for forming the same

#43
20170331150
2017-11-16

Lithium sulfur battery

#44
20170313836
2017-11-02

Ion exchange membrane for alkali chloride electrolysis, and alkali chloride electrolysis apparatus

#45
20170288249
2017-10-05

Electrolyte material, liquid composition and membrane/electrode assembly for polymer electrolyte fuel cell

#46
20170263919
2017-09-14

LITHIUM ELECTRODES FOR LITHIUM-SULPHUR BATTERIES

#47
20170229726
2017-08-10

Ion exchange membranes having low in-plane swelling

#48
20170218526
2017-08-03

Ion exchange membrane for alkali chloride electrolysis and alkali chloride electrolysis apparatus

#49
20170197184
2017-07-13

Hydrophilically modified fluorinated membrane (I)

#50
20170137952
2017-05-18

Ion exchange membrane for alkali chloride electrolysis, and alkali chloride electrolysis apparatus

#51
20170073483
2017-03-16

Hybrid fluoropolymer composites

#52
20170012313
2017-01-12

Polymer electrolyte membrane

#53
20170005354
2017-01-05

Polymer electrolyte film

#54
20170001155
2017-01-05

Porous body, polymer electrolyte membrane, filter material for filter, and filter unit

#55
20160359183
2016-12-08

Attachment of graphene and metal or metal oxide-modified graphene to organic polymers used in organic fuel cells

#56
20160288062
2016-10-06

Hydrophilically modified fluorinated membrane (IV)

#57
20160288061
2016-10-06

Hydrophilically modified fluorinated membrane (I)

#58
20160260994
2016-09-08

Ion exchange membrane and method for manufacturing same

#59
20160233532
2016-08-11

Membrane electrode assembly manufacturing process

#60
20160197370
2016-07-07

Liquid composition, process for its production, and process for producing membrane-electrode assembly for polymer electrolyte fuel cells

#61
20160141696
2016-05-19

Electrolyte solution and method for producing same, continuously dissolving facility, electrolyte membrane, electrode catalyst layer, membrane electrode assembly and fuel cell

#62
20150333354
2015-11-19

Proton exchange material and method therefor

#63
20150218084
2015-08-06

Allyl-bearing fluorinated ionomers

#64
20150202617
2015-07-23

Method for producing ionic polymer membrane

#65
20150200412
2015-07-16

Electrolyte membrane for polymer electrolyte fuel cell, process for its production and membrane-electrode assembly for polymer electrolyte fuel cell

#66
20150197589
2015-07-16

Process for the treatment of sulfonyl fluoride polymers

#67
20150119523
2015-04-30

Controlled free-radical copolymerization of trifluoroethylene

#68
20150030962
2015-01-29

Electrolyte material, liquid composition and membrane/electrode assembly for polymer electrolyte fuel cell

#69
20140377687
2014-12-25

Redox flow secondary battery and electrolyte membrane for redox flow secondary battery

#70
20140349160
2014-11-27

Redox flow secondary battery and electrolyte membrane for redox flow secondary battery

#71
20140242368
2014-08-28

Process for producing ion exchange membranes by melt-processing of acidic PFSA ionomers

#72
20140141357
2014-05-22

Low equivalent weight polymers

#73
20140093808
2014-04-03

High durability fuel cell components with cerium salt additives

#74
20140080930
2014-03-20

Process for producing fluorinated copolymer

#75
20140073709
2014-03-13

Fluorinated copolymer and ion exchange membrane

#76
20140018457
2014-01-16

Expandable functional TFE copolymer fine powder, expanded products and reacted products therefrom

#77
20140005286
2014-01-02

Expandable functional TFE copolymer fine powder, expanded products and reacted products therefrom

#78
20130310246
2013-11-21

Liquid compositions of fluorinated anion exchange polymers

#79
20130309596
2013-11-21

Liquid composition, process for its production, and process for producing membrane-electrode assembly for polymer electrolyte fuel cells

#80
20130288158
2013-10-31

Co(II)tetramethoxyphenylporphyrin additive to PFSA PEMs for improved fuel cell durability

#81
20130273457
2013-10-17

Proton conducting materials

#82
20130264522
2013-10-10

Vinylidene fluoride copolymers

#83
20130260279
2013-10-03

Rubber crack mitigants in polyelectrolyte membranes

#84
20130244138
2013-09-19

Liquid compositions of fluorinated ion exchange polymers

#85
20130210943
2013-08-15

Dispersion composition of fluorine-containing ion exchange resin

#86
20130203874
2013-08-08

Expandable functional TFE copolymer fine powder, expanded products and reacted products therefrom

#87
20130196250
2013-08-01

Sulfonated polymers useful for forming fuel cell membranes

#88
20130084460
2013-04-04

Expandable functional TFE copolymer fine powder, expanded products and reacted products therefrom

#89
20130041110
2013-02-14

Stabilized fluoropolymer and method for producing same

#90
20120321993
2012-12-20

PROTON CONDUCTIVE POLYMER ELECTROLYTE MEMBRANE HAVING EXCELLENT OXIDATION RESISTANCE, AND PROCESS FOR PRODUCING THE SAME

#91
20120289616
2012-11-15

Semi-crystalline fluoropolymer having ion exchange groups

#92
20120276471
2012-11-01

Proton conducting materials

#93
20120258382
2012-10-11

Additives to mitigate catalyst layer degradation in fuel cells

#94
20120237851
2012-09-20

Perfluorinated ion exchange resin, preparation method and use thereof

#95
20120136077
2012-05-31

Fluorinated copolymers, membranes prepared using the latter and fuel cell device including said membranes

#96
20120088181
2012-04-12

Chemical durability using synergystic mitigation strategies

#97
20120035283
2012-02-09

Expandable functional TFE copolymer fine powder, the expanded functional products obtained therefrom and reaction of the expanded products

#98
20120029098
2012-02-02

Proton conducting materials

#99
20120016044
2012-01-19

PROCESS TO PREPARE FLUOROPOLYMER DISPERSIONS AND MEMBRANES

#100
20110318669
2011-12-29

Fluoropolymer Electrolyte Membrane

#101
20110303868
2011-12-15

CATION CONDUCTIVE MEMBRANES COMPRISING POLYSULFONIC ACID POLYMERS AND METAL SALTS HAVING AN F-CONTAINING ANION

#102
20110278159
2011-11-17

Cation exchange membrane, production process thereof and electrolytic cell using the same

#103
20110262832
2011-10-27

ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELL, PROCESS FOR ITS PRODUCTION AND MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL

#104
20110254186
2011-10-20

PTFE membrane

#105
20110230575
2011-09-22

CROSSLINKABLE TRIFLUOROSTYRENE POLYMERS AND MEMBRANES

#106
20110212383
2011-09-01

Liquid composition, process for its production and process for producing membrane-electrode assembly for polymer electrolyte fuel cells

#107
20110159402
2011-06-30

STABILIZED FLUOROPOLYMER AND METHOD FOR PRODUCING SAME

#108
20110054050
2011-03-03

Ion exchange membrane having lamellar morphology and process of making the same

#109
20110053038
2011-03-03

Co(II)tetramethoxyphenylporphyrin additive to PFSA PEMS for improved fuel cell durability

#110
20110046247
2011-02-24

CROSSLINKABLE MONOMER

#111
20110045384
2011-02-24

Polymer electrolyte with aromatic sulfone crosslinking

#112
20110039960
2011-02-17

Expandable Functional TFE Copolymer Fine Powder, the Expanded Functional Products Obtained Therefrom and Reaction of the Expanded Products

#113
20110033773
2011-02-10

Modified hyper-branched polymer and proton exchange membrane applied with the same, and method for manufacturing the proton exchange membrane

#114
20110027684
2011-02-03

Dispersion composition having fluorine-containing ion exchange resin with adjusted particle size abundance ratio

#115
20110027677
2011-02-03

Fuel cell system

#116
20110020728
2011-01-27

Polyelectrolyte and process for producing the polyelectrolyte

#117
20100330456
2010-12-30

Solid polymer electrolyte membrane and production method of the same

#118
20100316932
2010-12-16

Casting solution and method for making a polymer electrolyte membrane

#119
20100311860
2010-12-09

METHOD FOR MAKING PROTON CONDUCTING MEMBRANES FOR FUEL CELLS BY RADIOGRAFTING

#120
20100297523
2010-11-25

Fluoroionomer liquid composition

#121
20100292351
2010-11-18

Process to prepare crosslinkable trifluorostyrene polymers and membranes

#122
20100273088
2010-10-28

Method for producing—SOH group-containing fluoropolymer and—SOH group-containing fluoropolymer

#123
20100239945
2010-09-23

Membrane electrode assembly and polymer electrolyte membrane fuel cell

#124
20100206660
2010-08-19

Water-proof sound-transmitting membrane, method for producing water-proof sound-transmitting membrane, and electrical appliance using the membrane

#125
20100203422
2010-08-12

Proton selective membrane for solid polymer fuel cells

#126
20100133482
2010-06-03

Vinylidene fluoride copolymers

#127
20100087553
2010-04-08

Process for stabilizing fluoropolymer having ion exchange groups

#128
20100040912
2010-02-18

Process for operating a fuel cell in dry conditions

#129
20100038316
2010-02-18

Poly(tetrafluoroethylene) zeolite composite and methods

#130
20100003574
2010-01-07

Separation membrane for direct liquid fuel cell and method for producing same

#131
20090306233
2009-12-10

Ion-exchange membrane for alkaline chloride electrolysis

#132
20090297916
2009-12-03

Fuel cell membrane electrode assembly

#133
20090269644
2009-10-29

PROTON CONDUCTING MATERIALS

#134
20090246591
2009-10-01

Chemically stabilized ionomers containing inorganic fillers

#135
20090187044
2009-07-23

Fluorosulfonyl group-containing compound, method for its production and polymer thereof

#136
20090182066
2009-07-16

Crosslinkable fluoropolymer, crosslinked fluoropolymers and crosslinked fluoropolymer membranes

#137
20090110967
2009-04-30

ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELL, PROCESS FOR ITS PRODUCTION, MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND METHOD OF OPERATING POLYMER ELECTROLYTE FUEL CELL

#138
20090076178
2009-03-19

Cross-linkable bi-sulphonyl derivatives and their uses for preparing ion-exchanging membranes

#139
20090075150
2009-03-19

Material for solid polyelectrolyte suitable for use in fuel cell

#140
20090068537
2009-03-12

ELECTROLYTE MEMBRANE, MEMBRANE AND ELECTRODE ASSEMBLY AND FUEL CELL USING MEMBRANE AND ELECTRODE ASSEMBLY

#141
20090061280
2009-03-05

Method for producing -SOH group-containing fluoropolymer and -SOH group-containing fluoropolymer

#142
20090053576
2009-02-26

Fluorochloro ionomers

#143
20090004527
2009-01-01

Polymer, polymer electrolyte membrane for polymer electrolyte fuel cell, and membrane/electrode assembly

#144
20080275147
2008-11-06

ELECTROLYTE MATERIAL

#145
20080146841
2008-06-19

Fluorosulfonyl group-containing compound, method for its production and polymer thereof

#146
20080138686
2008-06-12

POLYMER ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELLS, AND MEMBRANE/ELECTRODE ASSEMBLY

#147
20080032184
2008-02-07

Stable Trifluorostyrene Containing Compounds, And Their Use In Polymer Electroyte Membranes

#148
20070282023
2007-12-06

FLUOROPOLYMER DISPERSIONS AND MEMBRANES

#149
20070282022
2007-12-06

Process to prepare fluoropolymer dispersions and membranes

#150
20070281199
2007-12-06

CROSSLINKED MEMBRANE ELECTRODE ASSEMBLIES

#151
20070281198
2007-12-06

MEMBRANES ELECTRODE ASSEMBLIES PREPARED FROM FLUOROPOLYMER DISPERSIONS

#152
20070278094
2007-12-06

METHOD FOR PREPARING MEMBRANE ELECTRODE ASSEMBLIES FROM FLUOROPOLYMER DISPERSIONS

#153
20070202377
2007-08-30

Electrolyte material, electrolyte membrane and membrane-electrolyte assembly for polymer electrolyte fuel cells

#154
20070161718
2007-07-12

FLUORINATED ION EXCHANGE MEMBRANE AND PROCESS FOR PRODUCING FLUOROPOLYMER

#155
20070160888
2007-07-12

Curable resin composition for fuel cell electrolyte film and electrolyte film, process for producing the same, electrolyte film/electrode assembly, and process for producing the same

#156
20070142580
2007-06-21

Fluoropolymer, process for producing fluoropolymer, electrolyte film, object having immobilized active substance, and solid polymer electrolyte type fuel cell

#157
20070129500
2007-06-07

Stabilized fluoropolymer and method for producing same

#158
20070105966
2007-05-10

Polymer electrolyte membranes crosslinked by direct fluorination

#159
20070104994
2007-05-10

Electrolyte membrane for polymer electrolyte fuel cell, process for its production and membrane-electrode assembly for polymer electrolyte fuel cell

#160
20070099053
2007-05-03

High durability fuel cell components with cerium salt additives

#161
20070099052
2007-05-03

High durability fuel cell components with cerium oxide additives

#162
20070099051
2007-05-03

Ion-conducting composite membranes

#163
20070082256
2007-04-12

Fuel cell nanocatalyst

#164
20070007197
2007-01-11

System and method for synthesizing a polymeric membrane

#165
20060276556
2006-12-07

Process to prepare stable trifluorostyrene containing compounds grafted to base polymers using an alcohol/water mixture

#166
20060257706
2006-11-16

POLYMER ELECTROLYTE COMPOSITION AND FUEL CELL

#167
20060223894
2006-10-05

Ionomeric membrane

#168
20060199062
2006-09-07

Solid polymer electrolyte membrane and production method of the same

#169
20060194703
2006-08-31

Liquid fluoropolymer composition, process for producing organosol, film, and fuel cell

#170
20060160958
2006-07-20

Polymer electrolyte with aromatic sulfone crosslinking

#171
20060157893
2006-07-20

PTFE membrane

#172
20060135715
2006-06-22

Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes

#173
20060110644
2006-05-25

Membrane treatment method

#174
20060100294
2006-05-11

Partially fluorinated copolymer based on trifluorostyrene and substituted vinyl compound and ionic conductive polymer membrane formed therefrom

#175
20060073370
2006-04-06

Compositions containing modified fullerenes

#176
20060063055
2006-03-23

Fuel cell membrane electrode assembly

#177
20060057464
2006-03-16

Method of producing nanoparticle-filled phase inversion polymer electrolyte

#178
20060051647
2006-03-09

Polymer electrolyte membrane having excellent durability

#179
20060019140
2006-01-26

Liquid composition, process for its production and process for producing membrane-electrode assembly for polymer electrolyte fuel cells

#180
20060014887
2006-01-19

Method of hydrolyzing a dispersion of ionic fluoropolymer

#181
20050266289
2005-12-01

Ionic perfluorovinyl compounds and their uses as components of ionic conductors of the polymer type, of selective membranes or of catalysts

#182
20050238937
2005-10-27

Highly conductive ordered ion exchange membranes

#183
20050238813
2005-10-27

Process for impregnating supports

#184
20050228061
2005-10-13

Sulphonic fluorinated ionomers

#185
20050214632
2005-09-29

Membrane electrode assembly and proton exchange membrane fuel cell

#186
20050173244
2005-08-11

Diffusion film, electrode having the diffusion film, and process for producing diffusion film

#187
20050170229
2005-08-04

Composite ion-exchange membrane, fabrication method of the same, and membrane-electrode assembly, and polymer electrolyte fuel cell having the same

#188
20050165167
2005-07-28

Process for preparing graft copolymers and membranes formed therefrom

#189
20050142280
2005-06-30

System and method for synthesizing a polymer membrane

#190
20050137351
2005-06-23

Polymer electrolyte membranes crosslinked by direct fluorination

#191
20050130006
2005-06-16

Membrane electrode assembly for polymer electrolyte fuel cell

#192
20050113528
2005-05-26

Polymer electrolyte with aromatic sulfone crosslinking

#193
20050077233
2005-04-14

Resins containing ionic or ionizable groups with small domain sizes and improved conductivity

#194
20050043487
2005-02-24

Membranes of fluorinated ionomer blended with nonionomeric fluoropolymers for electrochemical cells

#195
20050014917
2005-01-20

Cross-linkable bi-sulphonyl derivatives and their uses for preparing ion-exchanging membranes