ClassID:

99645

C08G73/1021 - 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 catalyst used

Recent Application in this class:
#1
20260022215
2026-01-22

PROCESSABLE POLYIMIDE-PHTHALONITRILE APPLICATION FORMS AND METHODS THEREOF

#2
20250159828
2025-05-15

METHOD FOR PREPARING DISPLAY SCREEN COVER PLATE, DISPLAY SCREEN COVER PLATE AND DISPLAY DEVICE

#3
20250109248
2025-04-03

Catalyst for Synthesizing Polyimide and Preparation Method Therefor, and Polyimide Compound

#4
20250101181
2025-03-27

RESIN COMPOSITION AND PRODUCTION METHOD THEREFOR, AND CURED PRODUCT OF RESIN COMPOSITION

#5
20250011557
2025-01-09

POLYIMIDE FILM FOR GRAPHITE SHEET, AND GRAPHITE SHEET PREPARED THEREFROM

#6
20240409689
2024-12-12

POLYIMIDE POWDER AND PREPARATION METHOD THEREFOR

#7
20240400760
2024-12-05

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

#8
20240343865
2024-10-17

Polyimide Resin, Resin Composition Comprising Polyimide Resin and Cured Product Thereof

#9
20240336738
2024-10-10

RESIN COMPOSITION, POLYIMIDE PREPARATION METHOD AND RELATED PRODUCTS

#10
20240182646
2024-06-06

BISMALEIMIDE COMPOUND, RESIN VARNISH, AND PRODUCTION METHOD THEREOF

#11
20240092963
2024-03-21

RESIN COMPOSITION AND ADHESIVE

#12
20240059839
2024-02-22

Optically Transparent Polyimide

#13
20240026098
2024-01-25

POLYIMIDE FILM HAVING HIGH DIMENSIONAL STABILITY AND MANUFACTURING METHOD THEREFOR

#14
20230416466
2023-12-28

CURABLE RESIN COMPOSITION, SEMICONDUCTOR ENCAPSULATION MATERIAL, ADHESIVE, ADHESIVE FILM, PREPREG, INTERLAYER INSULATING MATERIAL, AND PRINTED-WIRING BOARD

#15
20230178854
2023-06-08

WATER BASED POLYIMIDE-POWDER COATING COMPOSITION AND METHOD FOR MANUFACTURING COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY USING SAME

#16
20220411585
2022-12-29

METHOD FOR PRODUCING POLYIMIDE FILM AND POLYIMIDE FILM MANUFACTURED THEREBY

#17
20220403110
2022-12-22

HIGHLY ELASTIC AND HEAT-RESISTANT POLYIMIDE FILM AND METHOD FOR PRODUCING SAME

#18
20220403109
2022-12-22

HIGHLY ADHESIVE AND LOW-DIALECTRIC POLYIMIDE FILM AND METHOD FOR PRODUCING SAME

#19
20220396676
2022-12-15

POLYIMIDE FILM FOR GRAPHITE SHEET, MANUFACTURING METHOD THEREFOR, AND GRAPHITE SHEET MANUFACTURED THEREFROM

#20
20220389166
2022-12-08

POLYIMIDE FILM FOR GRAPHITE SHEET, MANUFACTURING METHOD THEREFOR, AND GRAPHITE SHEET MANUFACTURED THEREFROM

#21
20220372225
2022-11-24

LOW-DIALECTRIC POLYIMIDE FILM AND METHOD FOR PRODUCING SAME

#22
20220348717
2022-11-03

POLYAMIC ACID, POLYIMIDE, AND ELEMENT FORMED THEREFROM

#23
20220324213
2022-10-13

Multilayer polyimide film and method for manufacturing same

#24
20220219127
2022-07-14

Poly(imide-oxadiazole) membranes for gas separation applications

#25
20220204696
2022-06-30

PHENOLIC FUNCTIONALIZED POLYIMIDES AND COMPOSITIONS THEREOF

#26
20220119596
2022-04-21

Particle-dispersed polyimide precursor solution, method for producing porous polyimide film, and porous polyimide film

#27
20210309804
2021-10-07

Colorless transparent copolyamide-imide films with high modulus and low coefficient of thermal expansion and preparation thereof

#28
20210301133
2021-09-30

CURABLE POLYIMIDES

#29
20210040266
2021-02-11

Colorless polyimide film containing fluorine and cardo structure and preparation method thereof

#30
20200399427
2020-12-24

Polyimide film comprising omnidirectional polymer chain, method for manufacturing same, and graphite sheet manufactured using same

#31
20200224054
2020-07-16

Method for producing aqueous polyimide precursor solution composition

#32
20200148844
2020-05-14

POLYIMIDE FILM MANUFACTURING METHOD

#33
20200031997
2020-01-30

TRANSPARENT POLYIMIDE FILMS AND METHOD OF PREPARATION

#34
20200024400
2020-01-23

METHODS OF MANUFACTURE FOR POLYETHERIMIDE

#35
20200002477
2020-01-02

Polyimide resin composition, method for producing same, and polyimide film

#36
20190390013
2019-12-26

Methods of manufacture of polyetherimides

#37
20190309130
2019-10-10

Resin composition, resin film, laminate, multilayer printed wiring board and method for producing multilayer printed wiring board

#38
20190256485
2019-08-22

Purification of oxydiphthalic anhydrides

#39
20190202980
2019-07-04

Method for preparing poly(carbonate-etherimide) compound

#40
20190161581
2019-05-30

POLYIMIDE RESIN

#41
20190112425
2019-04-18

Method for manufacturing transparent polyimide film

#42
20190085132
2019-03-21

Polyimide, dianhydride monomers, and polymers, methods of making and uses thereof

#43
20190062503
2019-02-28

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

#44
20180258225
2018-09-13

Methods of manufacture of polyetherimides

#45
20180248192
2018-08-30

Resin composition

#46
20180044476
2018-02-15

Polyamic acid resin and polyamideimide film

#47
20180044475
2018-02-15

Polyamic acid resin, polyamideimide film, and method for preparing the same

#48
20160317981
2016-11-03

Highly-selective polyimide membranes with increased permeance, said membranes consisting of block copolyimides

#49
20160122474
2016-05-05

Method for producing polyimide precursor and method for producing polyimide

#50
20150152224
2015-06-04

Polyetherimides with improved melt stability

#51
20140099510
2014-04-10

METHODS OF MANUFACTURE OF BIS(PHTHALIMIDE)S AND POLYETHERIMIDES, AND BIS(PHTHALIMIDE)S, AND POLYETHERIMIDES FORMED THEREFROM

#52
20140094536
2014-04-03

Polyetherimide compositions, methods of manufacture, and articles formed therefrom

#53
20140094535
2014-04-03

POLYETHERIMIDE COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM

#54
20120001367
2012-01-05

Method for producing polyimide film

#55
20090202793
2009-08-13

Photosensitive, Aqueous Alkaline Solution-Soluble Polyimide Resin and Photosensitive Resin Composition Containing the same

#56
20090068482
2009-03-12

Polyimide resin, polyimide film, and polyimide laminate

#57
20080004422
2008-01-03

Method for producing polyimide film

#58
20070219342
2007-09-20

Catalysis of polyimide curing

#59
20060004180
2006-01-05

Solution compositions of block copolyimides comprising pyromellitic dianhydride and process for production thereof

#60
20050272907
2005-12-08

Solvent-soluble block copolymide composition and process for producing the same