Patents-Review.com
ClassID:

99647 ⎘

C08G73/1028 - CPC Classification

Classification description:

Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups  - ; Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors; Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous

Sub-classes:
Recent Application in this class:
#1
20260109816
2026-04-23

ORGANIC REINFORCEMENT OF A POLYAMIDE WITH THE IN SITU SYNTHESIS OF A POLYIMIDE PHASE BY REACTIVE EXTRUSION

 #2
20250353977
2025-11-20

PREPARING A FLEXIBLE DISPLAY SUBSTRATE WITH A MIXTURE OF TETRA ACIDS OR TETRA ACID DERIVATIVES AND POLYAMIC ACIDS

 #3
20250304749
2025-10-02

POLYAMIC ACID-CONTAINING LIQUID AND METHOD FOR PRODUCING POLYAMIC ACID CONTAINING LIQUID

 #4
20250257172
2025-08-14

POLYAMIC ACID COMPOSITION, METHOD FOR PREPARING POLYAMIC ACID COMPOSITION, POLYIMIDE COMPRISING THE SAME AND COATING MATERIAL COMPRISING THE SAME

 #5
20250250272
2025-08-07

Diamine Compound, Polyimide Acid, Polyimide, and Preparation Method Therefor and Use Thereof

 #6
20250122650
2025-04-17

Graphitization of Electrospun Polyimide Nanofiber

 #7
20250122340
2025-04-17

POLYETHERIMIDE HAVING METAL-SUBSTITUTED ANIONIC PENDANT GROUPS

 #8
20250041808
2025-02-06

SEPARATION FUNCTIONAL LAYER, SEPARATION MEMBRANE, AND METHOD FOR MANUFACTURING SEPARATION FUNCTIONAL LAYER

 #9
20250026899
2025-01-23

METHOD FOR MANUFACTURING POLYIMIDE FILM WITH REDUCED GLOSS

 #10
20250019509
2025-01-16

METHOD FOR TREATING POLYIMIDE

 #11
20250011562
2025-01-09

AQUEOUS PROCESS FOR PREPARING POLYAMIC ACIDS AND POLYAMIC ACID RELATED GEL MATERIALS

 #12
20240400760
2024-12-05

POLYAMIC ACID AQUEOUS SOLUTION COMPOSITION, AND METHOD FOR PREPARING POLYIMIDE POWDER

 #13
20240327573
2024-10-03

SYSTEM AND METHOD FOR MANUFACTURING POLYAMIC ACID, AND SYSTEM AND METHOD FOR MANUFACTURING POLYIMIDE

 #14
20240287253
2024-08-29

PROCESS FOR POLYIMIDE SYNTHESIS AND POLYIMIDES MADE THEREFROM

 #15
20240279398
2024-08-22

POLYAMIDE-IMIDE-BASED FILM, PROCESS FOR PREPARING THE SAME, AND COVER WINDOW AND DISPLAY DEVICE COMPRISING THE SAME

 #16
20240240365
2024-07-18

Graphitization of Electrospun Polyimide Nanofiber

 #17
20240199810
2024-06-20

METHOD FOR PRODUCING POLYIMIDE RESIN POWDER

 #18
20240002599
2024-01-04

PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE MATERIAL COMPRISING SAME, BLACK MATRIX COMPRISING SAME, AND ELECTRONIC ELEMENT COMPRISING SAME

 #19
20230347575
2023-11-02

PHOTOSENSITIVE POLYIMIDE RESIN FOR ULTRAVIOLET (UV) CURING-BASED 3D PRINTING AND PREPARATION METHOD THEREOF

 #20
20230101144
2023-03-30

ANHYDRIDE COMPOUND, POLYIMIDE, AND THIN FILM

 #21
20220380541
2022-12-01

Dual-cure method and system for fabrication of 3D polymeric structures cross-reference to earlier applications

 #22
20220332962
2022-10-20

POLYMER LAYERS BY REACTIVE PRINTING

 #23
20220267528
2022-08-25

POLYAMIC ACID COMPOSITION, METHOD FOR PREPARING POLYAMIC ACID COMPOSITION, POLYIMIDE COMPRISING THE SAME AND COATING MATERIAL COMPRISING THE SAME

 #24
20220213268
2022-07-07

Dual-cure method and system for fabrication of 3D polymeric structures cross-reference to earlier applications

 #25
20220185962
2022-06-16

Dual-cure method and system for fabrication of 3D polymeric structures cross-reference to earlier applications

 #26
20220177650
2022-06-09

POLYIMIDE FILM PREPARATION METHOD AND APPLICATION THEREOF

 #27
20220169851
2022-06-02

Transparent polyimide mixture, method for manufacturing the transparent polyimide mixture, and method for manufacturing transparent polyimide film

 #28
20220152912
2022-05-19

Method for manufacturing thick polyimide film

 #29
20220135797
2022-05-05

POLYIMIDE FILM AND METHOD FOR MANUFACTURING SAME

 #30
20220119595
2022-04-21

Polyamide Acid, Polyimide, Optical Film, Display Device and Production Methods Thereof

 #31
20220106444
2022-04-07

Method for Producing 1,1,1-Trifluoro-2,2-Bisarylethane, and 1,1,1-Trifluoro-2,2-Bisarylethane

 #32
20210309803
2021-10-07

Compositions of and methods for producing modified monomers and polyimides for sour mixed gas separation

 #33
20210301086
2021-09-30

Single layer polymer films and electronic devices

 #34
20210230397
2021-07-29

Gas phase coating of boron nitride nanotubes with polymers

 #35
20210189077
2021-06-24

Thin film material and manufacturing method of thin film material

 #36
20210115258
2021-04-22

Polymer substrate design parameters for electronic microfabrication

 #37
20210070940
2021-03-11

METHOD FOR THE MANUFACTURE OF A POLY(IMIDE) PREPOLYMER POWDER AND VARNISH, POLY(IMIDE) PREPOLYMER POWDER AND VARNISH PREPARED THEREBY, AND POLY(IMIDE) PREPARED THEREFROM

 #38
20210002427
2021-01-07

System and method for manufacturing polyamic acid, and system and method for manufacturing polyimide

 #39
20200407593
2020-12-31

POLYIMIDE PRECURSOR RESIN COMPOSITION FOR FORMING FLEXIBLE DEVICE SUBSTRATE

 #40
20200407556
2020-12-31

Polymer film and preparation method thereof

 #41
20200277442
2020-09-03

Dual-cure method and system for fabrication of 3D polymeric structures

 #42
20200270398
2020-08-27

METHOD OF MAKING A POLYETHERIMIDE

 #43
20200231753
2020-07-23

METHOD OF MODIFYING A POLYIMIDE AND THE POLYIMIDE RESULTING THEREFROM

 #44
20200223983
2020-07-16

POLY(IMIDE-AMIDE) COPOLYMER, A METHOD FOR PREPARING A POLY(IMIDE-AMIDE) COPOLYMER, AND AN ARTICLE INCLUDING A POLY(IMIDE-AMIDE) COPOLYMER

 #45
20200216615
2020-07-09

MELT POLYMERIZATION METHOD FOR POLYETHERIMIDES

 #46
20200148829
2020-05-14

Poly(amide-imide) copolymer, composition for preparing same, article including same, and display device including the article

 #47
20200079909
2020-03-12

Process to make low color polyetherimide by halo-displacement and low color polyetherimide

 #48
20200062903
2020-02-27

Modified bismaleimide resin and preparation method thereof

 #49
20190369020
2019-12-05

METHOD FOR PREDICTING MATERIAL PERFORMANCE OF POLYIMIDE MATERIAL

 #50
20190359852
2019-11-28

Modified polyimide compound, resin composition and polyimide film

 #51
20190315690
2019-10-17

Synthesis of reactive intermediates for polyetherimides, and uses thereof

 #52
20190292318
2019-09-26

Method of making polyetherimide

 #53
20190276635
2019-09-12

Gas phase coating of boron nitride nanotubes with polymers

 #54
20190233589
2019-08-01

Polyimide-forming compositions, methods of manufacture, and articles prepared therefrom

 #55
20190202996
2019-07-04

POLYIMIDE HYBRID MATERIAL, PRECURSOR SOLUTION AND MANUFACTURE METHOD THEREOF

 #56
20190177484
2019-06-13

AROMATIC POLYIMIDES SUITABLE FOR 3D PRINTING PROCESSES

 #57
20190177482
2019-06-13

Method for the manufacture of a poly(imide) prepolymer powder and varnish, poly(imide) prepolymer powder and varnish prepared thereby, and poly(imide) prepared therefrom

 #58
20190153159
2019-05-23

Polyimide-based block copolymer film

 #59
20190085133
2019-03-21

Quick responsive, shape memory thermoset polyimide and preparation method thereof

 #60
20190071569
2019-03-07

Polyimide precursor solution and polyimide shaped article

 #61
20190062503
2019-02-28

Method for producing polyimide film, polyimide film, polyamic acid solution, and photosensitive composition

 #62
20190023845
2019-01-24

Method of making polyetherimide

 #63
20180355109
2018-12-13

Process for producing aromatic polyimides

 #64
20180346651
2018-12-06

Process for producing aromatic polyimides

 #65
20180312638
2018-11-01

Polyimide film and method for producing same

 #66
20180282907
2018-10-04

POLYMIDE FIBER AND PREPARATION METHOD THEREOF

 #67
20180263122
2018-09-13

Photosensitive and via-forming circuit board

 #68
20180201805
2018-07-19

Resin composition, polyimide film and method for manufacturing polyimide film

 #69
20180155498
2018-06-07

Thermoplastic (co)polyimides and synthesis methods

 #70
20180044474
2018-02-15

Process to make low color polyetherimide by halo-displacement and low color polyetherimide

 #71
20180030336
2018-02-01

Porous proppants

 #72
20180002487
2018-01-04

Polyamide-imide precursor, polyamide-imide film, and display device comprising same

 #73
20180002486
2018-01-04

Polyamide-imide precursor, polyamide-imide film and display device comprising same

 #74
20170362384
2017-12-21

Polyimide-forming compositions, methods of manufacture, and articles prepared therefrom

 #75
20170233530
2017-08-17

Alkoxysilane-modified polyamic acid solution, laminate and flexible device using same, and laminate manufacturing method

 #76
20170190841
2017-07-06

Two-stage cure polyimide oligomers

 #77
20170175078
2017-06-22

Cell culture substrate comprising fluorine-containing polymer on its surface

 #78
20170101509
2017-04-13

Poly(imide-amide) copolymer, article containing poly(imide-amide) copolymer, and electronic device including same

 #79
20170034910
2017-02-02

Polyimide polymer, polyimide film, and flexible copper-coated laminate

 #80
20160369055
2016-12-22

Quick responsive, shape memory thermoset polyimide and preparation method thereof

 #81
20160222249
2016-08-04

Composition for preparing article containing poly(imide-amide), method of preparing the same, and article containing poly(imide-amide)

 #82
20160215096
2016-07-28

Aromatic polyimides suitable for 3D printing processes

 #83
20160215095
2016-07-28

Preparation of imide oligomers via concurrent reactive extrusion

 #84
20160214067
2016-07-28

Uncrosslinked, high molecular weight, polyimide polymer containing a small amount of bulky diamine

 #85
20160214066
2016-07-28

Uncrosslinked, high molecular weight, monoesterified polyimide polymer containing a small amount of bulky diamine

 #86
20160177034
2016-06-23

High molecular weight, monoesterified polymide polymer containing a small amount of bulky diamine

 #87
20160168329
2016-06-16

Polyimide resin

 #88
20160168328
2016-06-16

Transparent polyimide copolymer, polyimide resin composition and molded article, and production method of said copolymer

 #89
20160159984
2016-06-09

Method for producing polyimide resin powder, and thermoplastic polyimide resin powder

 #90
20160137788
2016-05-19

Polyimide copolymer oligomer, polyimide copolymer, and method for producing each of same

 #91
20160137787
2016-05-19

POLYMIDE PRECURSOR AND POLYMIDE

 #92
20160122474
2016-05-05

Method for producing polyimide precursor and method for producing polyimide

 #93
20160115144
2016-04-28

Acid dianhydride, method for preparing same, and polyimide prepared therefrom

 #94
20160108014
2016-04-21

Acid dianhydride, method for preparing same, and polyimide prepared therefrom

 #95
20150299392
2015-10-22

Polyamide-imide copolymer film and method of preparing polyamide-imide copolymer

 #96
20150240031
2015-08-27

OPTICAL MEMBER, POLYIMIDE, METHOD FOR MANUFACTURING OPTICAL MEMBER, AND METHOD FOR PRODUCING POLYIMIDE

 #97
20150232619
2015-08-20

Method of producing polyimide resin, method of producing polyimide coating, method of producing polyamic acid solution, polyimide coating, and polyamic acid solution

 #98
20140342628
2014-11-20

THERMOPLASTIC (CO)POLYIMIDES AND SYNTHESIS METHODS

 #99
20140228513
2014-08-14

Thermoplastic polyimides

 #100
20140213739
2014-07-31

Solventless process for the preparation of amine functional polyetherimide resins with improved melt flow

 #101
20140209879
2014-07-31

Method of forming rigid imide material from soluble amide ester functionalized precursors

 #102
20140135447
2014-05-15

PREPARATION OF IMIDE OLIGOMERS

 #103
20140127497
2014-05-08

METHOD FOR PRODUCING POLYIMIDE LAMINATE, AND POLYIMIDE LAMINATE

 #104
20140058036
2014-02-27

Method of producing polyimide resin, method of producing polyimide coating, method of producing polyamic acid solution, polyimide coating, and polyamic acid solution

 #105
20130273254
2013-10-17

POLYMIDE FILM AND METHOD FOR MANUFACTURING THE SAME

 #106
20130108854
2013-05-02

Solventless process for the preparation of amine functional polyetherimide resins with improved melt flow

 #107
20130102753
2013-04-25

LOW RESIDUAL SOLVENT POLYAMIDEIMIDE POWDER FROM SUSPENSION POLYMERIZATION

 #108
20120314294
2012-12-13

Optical member, polyimide, method for manufacturing optical member, and method for producing polyimide

 #109
20120094232
2012-04-19

Production method of polyhydroxyimide

 #110
20110301285
2011-12-08

Two-stage cure polyimide oligomers

 #111
20110218265
2011-09-08

Polyimide foam and method for producing same

 #112
20110178266
2011-07-21

POLYIMIDE FILM

 #113
20100305295
2010-12-02

Process for producing polyamic acid solution and polyamic acid solution

 #114
20100273955
2010-10-28

6,6-polyimide copolymers and processes for preparing them

 #115
20100147564
2010-06-17

ASYMMETRIC LINEAR POLYIMIDES AND THEIR POLYIMIDE PRECURSORS, AND THEIR MANUFACTURING METHODS

 #116
20100069520
2010-03-18

Block copolymer of polyimide and polyamic acid, method for producing the block copolymer, photosensitive resin composition comprising the block copolymer and protective film formed using the block copolymer

 #117
20100056718
2010-03-04

Process for producing polyamic acid solution and polyamic acid solution

 #118
20090306306
2009-12-10

THERMOSETTING POLYIMIDE RESIN COMPOSITION AND CURED PRODUCT THEREOF

 #119
20090197110
2009-08-06

Polyimide film and adhesive film and flexible metal-clad laminate both obtained with the same

 #120
20090182097
2009-07-16

Method of making a high molecular weight, monoesterified polyimide polymer

 #121
20090160089
2009-06-25

Process for producing polyimide film

 #122
20090143541
2009-06-04

Process for preparing a block copolymer from polyimides and use of the block copolymer for producing powders and mouldings

 #123
20090143521
2009-06-04

Polyimide material and preparation method thereof

 #124
20090068482
2009-03-12

Polyimide resin, polyimide film, and polyimide laminate

 #125
20080287642
2008-11-20

Process for production of polyimide film having high adhesiveness

 #126
20080269457
2008-10-30

Process For Producing Polyimide Fine Particle

 #127
20070073035
2007-03-29

Method for making polyetherimides

 #128
20060142540
2006-06-29

Two-stage cure polyimide oligomers

 #129
20060020047
2006-01-26

Processes for the production of cumene, polyetherimides, and polycarbonates

 #130
20050164002
2005-07-28

Polymeric particles

 #131
20050131163
2005-06-16

Aerogel metallic compositions

 #132
20050080228
2005-04-14

Method for preparing polyimide and polyimide prepared thereby

 #133
18805958
2025-01-14

Polyimide membranes incorporating diselenide functionality for selective separation of CO