Polyamides Polyimides

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CPC
D21H13/26

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Parent Industries

DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR D21H13/00Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material

Current Industry

D21H13/26Polyamides Polyimides

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Aramid pulp and method for manufacturing the same
- Patent number 12,258,714
- Issue date Mar 25, 2025
- Kolon Industries, Inc.
- Changhee Ko
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Corona-resistant N-grade insulation paper for variable frequency mo...
- Patent number 12,110,638
- Issue date Oct 8, 2024
- Sichuan University
- Junwen Ren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Filter paper
- Patent number 12,110,636
- Issue date Oct 8, 2024
- Delfortgroup AG
- Dieter Möhring
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Electromagnetic shielding paper based on modification of conductive...
- Patent number 12,049,728
- Issue date Jul 30, 2024
- JIANGSU AOSHEN HI-TECH MATERIALS CO., LTD.
- Shihua Wang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polyimide fiber paper using thermoplastic polymer
- Patent number 12,024,824
- Issue date Jul 2, 2024
- Du Pont Toray Co., Ltd.
- Hideaki Machida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Mat and gypsum boards suitable for wet or humid areas
- Patent number 12,012,352
- Issue date Jun 18, 2024
- Ahlstrom Oyj
- Emmanuel Faynot
- B32 - LAYERED PRODUCTS
Information Patent Grant
Aramid-mica composite insulating nanopaper and preparation method t...
- Patent number 11,885,071
- Issue date Jan 30, 2024
- SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Zhaoqing Lu
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Paper comprising microfilaments
- Patent number 11,851,820
- Issue date Dec 26, 2023
- Teijin Aramid B.V.
- Fresia Alvarado Chacon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aramid compound paper with pinning effect and preparation method th...
- Patent number 11,833,797
- Issue date Dec 5, 2023
- Jiangxi Longtai New Material Co., LTD
- Congju An
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Low-shedding aramid paper containing mica
- Patent number 11,788,234
- Issue date Oct 17, 2023
- DuPont Safety & Construction, Inc.
- Chris Dembrosky
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Nonwoven web composition, method to prepare the composition and art...
- Patent number 11,718,962
- Issue date Aug 8, 2023
- JACOB HOLM & SONS AG
- Geoff Collins
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aramid-based paper with improved properties
- Patent number 11,686,048
- Issue date Jun 27, 2023
- Teijin Aramid B.V.
- Antonius J. J. Hendriks
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Paper comprising microfilaments
- Patent number 11,649,588
- Issue date May 16, 2023
- Teijin Aramid B.V.
- Fresia Alvarado Chacon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for manufacturing aramid pulp comprising PVP
- Patent number 11,542,660
- Issue date Jan 3, 2023
- Teijin Aramid B.V.
- Walter Nijhuis
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Papers useful as thermal insulation and flame barriers for battery...
- Patent number 11,509,016
- Issue date Nov 22, 2022
- DuPont Safety & Construction, Inc.
- Byoung Sam Kang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Paper comprising microfilaments
- Patent number 11,427,962
- Issue date Aug 30, 2022
- Teijin Aramid B.V.
- Fresia Alvarado Chacon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aramid paper coated with aramid nanofibers and a method of preparin...
- Patent number 11,414,817
- Issue date Aug 16, 2022
- SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Meiyun Zhang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Nano TiO2-doped anti-ultraviolet para-aramid nano paper and prepara...
- Patent number 11,339,538
- Issue date May 24, 2022
- Shaanxi University of Science & Technology
- Zhaoqing Lu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aramid nanofiber-based insulation paper and preparation method thereof
- Patent number 11,319,675
- Issue date May 3, 2022
- Hunan University
- Jianfeng Wang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Porous sheet
- Patent number 11,236,468
- Issue date Feb 1, 2022
- TOKUSHU TOKAI PAPER CO., LTD
- Katsuhiko Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polyimide fiber sheet
- Patent number 11,230,810
- Issue date Jan 25, 2022
- DU PONT-TORAY CO., LTD.
- Hideaki Machida
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper comprising aramid pulp suitable for electrochemical cells, an...
- Patent number 11,193,240
- Issue date Dec 7, 2021
- DuPont Safety & Construction, Inc.
- Mehdi Afshari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Separator and non-aqueous electrolyte battery
- Patent number 11,177,535
- Issue date Nov 16, 2021
- MAXELL HOLDINGS, LTD.
- Yu Sugioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Aramid fiber far-infrared emitting paper and preparation method the...
- Patent number 11,131,064
- Issue date Sep 28, 2021
- NANOCARBON CO., LTD.
- Xiaogang Sun
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Flame-blocking nonwoven fabric
- Patent number 11,118,289
- Issue date Sep 14, 2021
- Toray Industries, Inc.
- Hiroshi Tsuchikura
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aramid paper suitable for use in electronic applications
- Patent number 11,111,632
- Issue date Sep 7, 2021
- Teijin Aramid B.V.
- Antonius Hendriks
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of producing a fibrous web
- Patent number 11,085,151
- Issue date Aug 10, 2021
- Paptic Oy
- Tuomas Mustonen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
High tensile strength paper suitable for use in electrochemical cells
- Patent number 11,078,627
- Issue date Aug 3, 2021
- DuPont Safety & Construction, Inc.
- Mehdi Afshari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filter medium for liquid filter and liquid filter
- Patent number 10,874,964
- Issue date Dec 29, 2020
- TEIJIN FRONTIER CO.. LTD.
- Kazuyoshi Sakita
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of producing a fibrous web containing natural and synthetic...
- Patent number 10,865,523
- Issue date Dec 15, 2020
- PAPTIC LTD
- Karita Kinnunen-Raudaskoski
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
IMPREGNATING COATING LAYER FOR INSULATING SHEETSAND MULTILAYER LAMI...
- Publication number 20240351318
- Publication date Oct 24, 2024
- DUPONT SAFETY & CONSTRUCTION, INC.
- Benjamin Gaussens
- B32 - LAYERED PRODUCTS
Information Patent Application
MAT AND GYPSUM BOARDS SUITABLE FOR WET OR HUMID AREAS
- Publication number 20240294421
- Publication date Sep 5, 2024
- Ahlstrom Oyj
- Emmanuel FAYNOT
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
MODIFIED ARAMID PULP AND FRICTION MATERIAL COMPRISING MODIFIED ARAM...
- Publication number 20240271365
- Publication date Aug 15, 2024
- TEIJIN ARAMID B.V.
- Walter NIJHUIS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CIRCUIT BOARD UNWOVEN FABRIC, CIRCUIT BOARD PREPREG USING SAME AND...
- Publication number 20240125050
- Publication date Apr 18, 2024
- DUPONT SAFETY & CONSTRUCTION, INC.
- Yuhei Nishimori
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARAMID COMPOUND PAPER WITH PINNING EFFECT AND PREPARATION METHOD TH...
- Publication number 20230364900
- Publication date Nov 16, 2023
- Jiangxi Longtai New Material Co., LTD
- Congju AN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Electromagnetic Shielding Paper Based on Modification of Conductive...
- Publication number 20230323599
- Publication date Oct 12, 2023
- Jiangsu Aoshen Hi-tech Materials Co.,ltd.
- Shihua Wang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Paper-based Electromagnetic Shielding Composite with Flame Retardan...
- Publication number 20230304224
- Publication date Sep 28, 2023
- Jiangsu Aoshen Hi-tech Materials Co.,ltd.
- Shihua WANG
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PAPER COMPRISING MICROFILAMENTS
- Publication number 20230151548
- Publication date May 18, 2023
- TEIJIN ARAMID B.V.
- Fresia Alvarado Chacon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
LOW-SHEDDING ARAMID PAPER CONTAINING MICA
- Publication number 20230052674
- Publication date Feb 16, 2023
- DUPONT SAFETY & CONSTRUCTION, INC.
- Chris DEMBROSKY
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARAMID PULP AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20220389660
- Publication date Dec 8, 2022
- KOLON INDUSTRIES, INC.
- Changhee KO
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PAPER COMPRISING MICROFILAMENTS
- Publication number 20220349125
- Publication date Nov 3, 2022
- TEIJIN ARAMID B.V.
- Fresia Alvarado Chacon
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARAMID-MICA COMPOSITE INSULATING NANOPAPER AND PREPARATION METHOD T...
- Publication number 20220316141
- Publication date Oct 6, 2022
- SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
- Zhaoqing LU
- B82 - NANO-TECHNOLOGY
Information Patent Application
MULTILAYERED FIRE-RESISTANT SHEET
- Publication number 20220290375
- Publication date Sep 15, 2022
- DUPONT SAFETY & CONSTRUCTION, INC.
- BYOUNG SAM KANG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD FOR PRODUCING WET-RUNNING FRICTION PAPER, AND WET-RUNNING FR...
- Publication number 20220243779
- Publication date Aug 4, 2022
- SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Stefan Steinmetz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
POLYIMIDE FIBER PAPER USING NON-THERMOPLASTIC POLYMER
- Publication number 20220186440
- Publication date Jun 16, 2022
- DU PONT-TORAY CO., LTD.
- Hideaki MACHIDA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR PRODUCING HEAT-RESISTANT RESIN COMPOSITE AND HEATRESISTA...
- Publication number 20220033595
- Publication date Feb 3, 2022
- Kuraray Co., Ltd
- Ryokei ENDO
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Application
THERMAL INSULATING PAPER AND METHOD FOR PRODUCING A THERMAL INSULAT...
- Publication number 20220025581
- Publication date Jan 27, 2022
- SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Stefan Steinmetz
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
DIAMOND ENRICHED INSULATION PAPER FOR THE COOLING IMPROVEMENT OF AN...
- Publication number 20210301472
- Publication date Sep 30, 2021
- Zlatko KOLONDJOVSKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ARAMID PAPER COATED WITH ARAMID NANOFIBERS AND A METHOD OF PREPARIN...
- Publication number 20210254286
- Publication date Aug 19, 2021
- SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
- Meiyun ZHANG
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NONWOVEN WEB COMPOSITION, METHOD TO PREPARE THE COMPOSITION AND ART...
- Publication number 20210230808
- Publication date Jul 29, 2021
- Jacob Holm & Sons AG
- Geoff COLLINS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARAMID-BASED PAPER WITH IMPROVED PROPERTIES
- Publication number 20210140108
- Publication date May 13, 2021
- TEIJIN ARAMID B.V.
- Antonius J.J. HENDRIKS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARAMID NANOFIBER-BASED INSULATION PAPER AND PREPARATION METHOD THEREOF
- Publication number 20210062429
- Publication date Mar 4, 2021
- Hunan University
- Jianfeng Wang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ELECTROMAGNETIC WAVE ABSORBING SHEET AND METHOD FOR PRODUCING SAME
- Publication number 20210029854
- Publication date Jan 28, 2021
- DUPONT TEIJIN ADVANCED PAPERS (JAPAN), LTD.
- Shinji NARUSE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Nano TiO2-Doped Anti-Ultraviolet Para-Aramid Nano Paper and Prepara...
- Publication number 20210017713
- Publication date Jan 21, 2021
- SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
- Zhaoqing Lu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARAMID FIBER FAR-INFRARED EMITTING PAPER AND PREPARATIN METHOD THEREOF
- Publication number 20210010204
- Publication date Jan 14, 2021
- NANOCARBON CO., LTD.
- Xiaogang Sun
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PAPER COMPRISING ARAMID PULP SUITABLE FOR ELECTROCHEMICAL CELLS, AN...
- Publication number 20200362516
- Publication date Nov 19, 2020
- DUPONT SAFETY & CONSTRUCTION, INC.
- MEHDI AFSHARI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PAPERS USEFUL AS THERMAL INSULATION AND FLAME BARRIERS FOR BATTERY...
- Publication number 20200295328
- Publication date Sep 17, 2020
- DUPONT SAFETY & CONSTRUCTION, INC.
- Byoung Sam KANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method of producing a fibrous web
- Publication number 20200283958
- Publication date Sep 10, 2020
- Paptic Oy
- Tuomas Mustonen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
WET NONWOVEN FABRIC CONTAINING META-ARAMID AND POLYPHENYLENE SULFID...
- Publication number 20200208351
- Publication date Jul 2, 2020
- TORAY INDUSTRIES, INC.
- Masaru Harada
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
REINFORCED PAPER, METHOD OF MAKING A REINFORCED PAPER, AND ARTICLE...
- Publication number 20200123708
- Publication date Apr 23, 2020
- SABIC Global Technologies B.V.
- Eddie Kebin Geng
- B32 - LAYERED PRODUCTS

Polyamides Polyimides

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Aramid pulp and method for manufacturing the same

Corona-resistant N-grade insulation paper for variable frequency mo...

Filter paper

Electromagnetic shielding paper based on modification of conductive...

Polyimide fiber paper using thermoplastic polymer

Mat and gypsum boards suitable for wet or humid areas

Aramid-mica composite insulating nanopaper and preparation method t...

Paper comprising microfilaments

Aramid compound paper with pinning effect and preparation method th...

Low-shedding aramid paper containing mica

Nonwoven web composition, method to prepare the composition and art...

Aramid-based paper with improved properties

Paper comprising microfilaments

Method for manufacturing aramid pulp comprising PVP

Papers useful as thermal insulation and flame barriers for battery...

Paper comprising microfilaments

Aramid paper coated with aramid nanofibers and a method of preparin...

Nano TiO2-doped anti-ultraviolet para-aramid nano paper and prepara...

Aramid nanofiber-based insulation paper and preparation method thereof

Porous sheet

Polyimide fiber sheet

Paper comprising aramid pulp suitable for electrochemical cells, an...

Separator and non-aqueous electrolyte battery

Aramid fiber far-infrared emitting paper and preparation method the...

Flame-blocking nonwoven fabric

Aramid paper suitable for use in electronic applications

Method of producing a fibrous web

High tensile strength paper suitable for use in electrochemical cells

Filter medium for liquid filter and liquid filter

Method of producing a fibrous web containing natural and synthetic...

Patents Applicationslast 30 patents

IMPREGNATING COATING LAYER FOR INSULATING SHEETSAND MULTILAYER LAMI...

MAT AND GYPSUM BOARDS SUITABLE FOR WET OR HUMID AREAS

MODIFIED ARAMID PULP AND FRICTION MATERIAL COMPRISING MODIFIED ARAM...

CIRCUIT BOARD UNWOVEN FABRIC, CIRCUIT BOARD PREPREG USING SAME AND...

ARAMID COMPOUND PAPER WITH PINNING EFFECT AND PREPARATION METHOD TH...

Electromagnetic Shielding Paper Based on Modification of Conductive...

Paper-based Electromagnetic Shielding Composite with Flame Retardan...

PAPER COMPRISING MICROFILAMENTS

LOW-SHEDDING ARAMID PAPER CONTAINING MICA

ARAMID PULP AND METHOD FOR MANUFACTURING THE SAME

PAPER COMPRISING MICROFILAMENTS

ARAMID-MICA COMPOSITE INSULATING NANOPAPER AND PREPARATION METHOD T...

MULTILAYERED FIRE-RESISTANT SHEET

METHOD FOR PRODUCING WET-RUNNING FRICTION PAPER, AND WET-RUNNING FR...

POLYIMIDE FIBER PAPER USING NON-THERMOPLASTIC POLYMER

METHOD FOR PRODUCING HEAT-RESISTANT RESIN COMPOSITE AND HEATRESISTA...

THERMAL INSULATING PAPER AND METHOD FOR PRODUCING A THERMAL INSULAT...

DIAMOND ENRICHED INSULATION PAPER FOR THE COOLING IMPROVEMENT OF AN...

ARAMID PAPER COATED WITH ARAMID NANOFIBERS AND A METHOD OF PREPARIN...

NONWOVEN WEB COMPOSITION, METHOD TO PREPARE THE COMPOSITION AND ART...

ARAMID-BASED PAPER WITH IMPROVED PROPERTIES

ARAMID NANOFIBER-BASED INSULATION PAPER AND PREPARATION METHOD THEREOF

ELECTROMAGNETIC WAVE ABSORBING SHEET AND METHOD FOR PRODUCING SAME

Nano TiO2-Doped Anti-Ultraviolet Para-Aramid Nano Paper and Prepara...

ARAMID FIBER FAR-INFRARED EMITTING PAPER AND PREPARATIN METHOD THEREOF

PAPER COMPRISING ARAMID PULP SUITABLE FOR ELECTROCHEMICAL CELLS, AN...

PAPERS USEFUL AS THERMAL INSULATION AND FLAME BARRIERS FOR BATTERY...

Method of producing a fibrous web

WET NONWOVEN FABRIC CONTAINING META-ARAMID AND POLYPHENYLENE SULFID...

REINFORCED PAPER, METHOD OF MAKING A REINFORCED PAPER, AND ARTICLE...