Poly(meth)acrylate derivatives

Industry

CPC
C09K19/3852

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Parent Industries

CCHEMISTRY METALLURGY C09Paints, dyes C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE C09K19/00Liquid crystal materials

Current Industry

C09K19/3852Poly(meth)acrylate derivatives

Industries

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal composition, light absorption anisotropic film, lami...
- Patent number 12,163,083
- Issue date Dec 10, 2024
- FUJIFILM Corporation
- Takashi Katou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polarizer and image display device
- Patent number 12,152,188
- Issue date Nov 26, 2024
- FUJIFILM Corporation
- Wataru Hoshino
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Optical laminate, viewing angle control system, image display device
- Patent number 12,130,457
- Issue date Oct 29, 2024
- FUJIFILM Corporation
- Wataru Hoshino
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal composition, dichroic material, light absorption ani...
- Patent number 12,065,605
- Issue date Aug 20, 2024
- FUJIFILM Corporation
- Takashi Katou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polarization diffraction element and vector beam mode detection sys...
- Patent number 12,055,742
- Issue date Aug 6, 2024
- HAYASHI TELEMPU CORPORATION
- Takeya Sakai
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Optically anisotropic film, optical film, and display device
- Patent number 12,032,188
- Issue date Jul 9, 2024
- FUJIFILM Corporation
- Wataru Hoshino
- G02 - OPTICS
Information Patent Grant
Liquid crystal composition, light absorption anisotropic film, lami...
- Patent number 11,970,649
- Issue date Apr 30, 2024
- FUJIFILM Corporation
- Wataru Hoshino
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Image display apparatus, information display system for vehicle, an...
- Patent number 11,885,995
- Issue date Jan 30, 2024
- FUJIFILM Corporation
- Shinichi Yoshinari
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Polarizer and image display device
- Patent number 11,822,180
- Issue date Nov 21, 2023
- FUJIFILM Corporation
- Hiroshi Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal composition, light absorption anisotropic film, lami...
- Patent number 11,789,302
- Issue date Oct 17, 2023
- FUJIFILM Corporation
- Wataru Hoshino
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal composition, light absorption anisotropic film, lami...
- Patent number 11,732,192
- Issue date Aug 22, 2023
- FUJIFILM Corporation
- Hiroshi Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal composition, method for producing high-molecular wei...
- Patent number 11,697,770
- Issue date Jul 11, 2023
- FUJIFILM Corporation
- Hiroshi Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal composition, reflective layer, method for producing...
- Patent number 11,634,638
- Issue date Apr 25, 2023
- FUJIFILM Corporation
- Shunya Katoh
- G02 - OPTICS
Information Patent Grant
Liquid crystalline composition, side chain type polymer liquid crys...
- Patent number 11,578,270
- Issue date Feb 14, 2023
- FUJIFILM Corporation
- Hiroshi Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Photoreactive liquid crystal composition, display element, optical...
- Patent number 11,560,517
- Issue date Jan 24, 2023
- UNIVERSITY OF HYOGO
- Tomoyuki Sasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Dielectric devices and methods of fabrication
- Patent number 11,525,087
- Issue date Dec 13, 2022
- PPG Industries Ohio, Inc.
- Cynthia Kutchko
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid crystalline composition, polymer liquid crystal compound, li...
- Patent number 11,505,744
- Issue date Nov 22, 2022
- FUJIFILM Corporation
- Hiroshi Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-responsive interpenetrating polymer network, preparation meth...
- Patent number 11,498,989
- Issue date Nov 15, 2022
- SOUTH CHINA NORMAL UNIVERSITY
- Guofu Zhou
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polarizer and image display device
- Patent number 11,467,442
- Issue date Oct 11, 2022
- Hiroshi Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ligand, nanoparticle, and thin film with the same
- Patent number 11,441,074
- Issue date Sep 13, 2022
- The Hong Kong University of Science and Technology
- Maksym Fedorovich Prodanov
- G02 - OPTICS
Information Patent Grant
Compound, composition, cured object, optically anisotropic body, an...
- Patent number 11,390,812
- Issue date Jul 19, 2022
- FUJIFILM Corporation
- Ryoji Goto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal polymer device and method
- Patent number 11,352,561
- Issue date Jun 7, 2022
- Christopher M. Yakacki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal composition, method for producing reflective layer,...
- Patent number 11,332,671
- Issue date May 17, 2022
- FUJIFILM Corporation
- Keisuke Kodama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Side-chain liquid crystal polymer, liquid crystal composition, reta...
- Patent number 11,332,670
- Issue date May 17, 2022
- Dai Nippon Printing Co., Ltd.
- Ken-ichi Okuyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Laminate, manufacturing method of laminate, and image display device
- Patent number 11,286,423
- Issue date Mar 29, 2022
- FUJIFILM Corporation
- Yumi Katou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Actuator device, actuation method and manufacturing method
- Patent number 11,274,253
- Issue date Mar 15, 2022
- Koninklijke Philips N.V.
- Johan Lub
- B32 - LAYERED PRODUCTS
Information Patent Grant
Polymerizable liquid crystal composition, optically anisotropic lay...
- Patent number 11,186,775
- Issue date Nov 30, 2021
- FUJIFILM Corporation
- Hideyuki Nishikawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Programmable nanocomposites
- Patent number 11,142,696
- Issue date Oct 12, 2021
- United States of America as represented by the Secretary of the Air Force
- Tyler C Guin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal aligning agent, liquid crystal alignment film, and l...
- Patent number 11,111,387
- Issue date Sep 7, 2021
- Nissan Chemical Industries, Ltd.
- Tatsuya Nagi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Retardation film
- Patent number 11,002,896
- Issue date May 11, 2021
- Sumitomo Chemical Company, Limited
- Nobuyuki Hatanaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
DECORATIVE FILM AND MANUFACTURING METHOD OF SAME, LAMINATE AND MANU...
- Publication number 20240399774
- Publication date Dec 5, 2024
- FUJIFILM CORPORATION
- Yuka MATSUMOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIQUID CRYSTALLINE COMPOSITION, CURED PRODUCT, OPTICALLY ANISOTROPI...
- Publication number 20240353603
- Publication date Oct 24, 2024
- FUJIFILM CORPORATION
- Yuki FUKUSHIMA
- G02 - OPTICS
Information Patent Application
IMAGE RECORDED MATERIAL AND IMAGE RECORDING METHOD
- Publication number 20240318018
- Publication date Sep 26, 2024
- FUJIFILM CORPORATION
- Takuma KAWAMOTO
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
THREE-DIMENSIONAL HELICAL-ARTIFICIAL-FIBROUS-MUSCLE STRUCTURED TUBU...
- Publication number 20240218252
- Publication date Jul 4, 2024
- WESTLAKE UNIVERSITY
- Jiuan Lv
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
COMPOUND, COMPOSITION, CURED PRODUCT, OPTICALLY ANISOTROPIC BODY, O...
- Publication number 20240166949
- Publication date May 23, 2024
- FUJIFILM CORPORATION
- Megumi OKUBO
- G02 - OPTICS
Information Patent Application
Oligomer Stabilized Liquid Crystal Light Valve
- Publication number 20240166950
- Publication date May 23, 2024
- Seurat Technologies, Inc.
- Zoey Samuel Davidson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
PHOTO-ALIGNMENT THERMOSETTING LIQUID CRYSTAL COMPOSITION, ALIGNMENT...
- Publication number 20240117250
- Publication date Apr 11, 2024
- DAI NIPPON PRINTING CO., LTD.
- Shunsuke IRIE
- G02 - OPTICS
Information Patent Application
LIGHT ABSORPTION ANISOTROPIC FILM, LAMINATE, AND IMAGE DISPLAY DEVICE
- Publication number 20230417969
- Publication date Dec 28, 2023
- FUJIFILM CORPORATION
- Yasukazu KUWAYAMA
- G02 - OPTICS
Information Patent Application
OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, AND DISPLAY DEVICE
- Publication number 20230384498
- Publication date Nov 30, 2023
- FUJIFILM CORPORATION
- Wataru HOSHINO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYMERIZABLE LIQUID CRYSTAL MATERIAL AND POLYMERIZED LIQUID CRYSTA...
- Publication number 20230340329
- Publication date Oct 26, 2023
- Merck Patent GmbH
- Stephen Mulcahy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
DECORATIVE MATERIAL, DECORATIVE PANEL, ELECTRONIC DEVICE, AND MANUF...
- Publication number 20230340300
- Publication date Oct 26, 2023
- FUJIFILM CORPORATION
- Akihiro ISHII
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIGHT ABSORPTION ANISOTROPIC FILM, OPTICAL FILM, AND LIQUID CRYSTAL...
- Publication number 20230332048
- Publication date Oct 19, 2023
- FUJIFILM CORPORATION
- Wataru HOSHINO
- G02 - OPTICS
Information Patent Application
MANUFACTURING METHOD FOR OPTICALLY ANISOTROPIC FILM
- Publication number 20230166289
- Publication date Jun 1, 2023
- FUJIFILM CORPORATION
- Takao TAGUCHI
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
DECORATIVE FILM, DECORATIVE MOLDED ARTICLE, DECORATIVE PANEL, AND E...
- Publication number 20230158771
- Publication date May 25, 2023
- FUJIFILM CORPORATION
- Yuichi HAYATA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, LIQUID CRYSTAL COMPOSITION, CURED SUBSTANCE, AND FILM
- Publication number 20230130894
- Publication date Apr 27, 2023
- FUJIFILM CORPORATION
- Shunya KATOH
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
OPTICAL FILM, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE
- Publication number 20230120853
- Publication date Apr 20, 2023
- FUJIFILM CORPORATION
- Naoya NISHIMURA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
QUANTUM DOT-CONTAINING POLYMERIZABLE COMPOSITION, CURED PRODUCT, WA...
- Publication number 20230096684
- Publication date Mar 30, 2023
- FUJIFILM CORPORATION
- Natsuru CHIKUSHI
- B82 - NANO-TECHNOLOGY
Information Patent Application
LIQUID CRYSTAL COMPOSITION, LIGHT ABSORPTION ANISOTROPIC FILM, LAMI...
- Publication number 20230043275
- Publication date Feb 9, 2023
- FUJIFILM CORPORATION
- Takashi KATOU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
OPTICAL LAMINATE, VIEWING ANGLE CONTROL SYSTEM, IMAGE DISPLAY DEVICE
- Publication number 20230035147
- Publication date Feb 2, 2023
- FUJIFILM CORPORATION
- Wataru HOSHINO
- G02 - OPTICS
Information Patent Application
POLARIZER AND IMAGE DISPLAY DEVICE
- Publication number 20230028750
- Publication date Jan 26, 2023
- FUJIFILM CORPORATION
- Hiroshi MATSUYAMA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIQUID CRYSTAL COMPOSITION, LIGHT ABSORPTION ANISOTROPIC FILM, LAMI...
- Publication number 20220389319
- Publication date Dec 8, 2022
- FUJIFILM CORPORATION
- Keigo SHIGA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
IMAGE DISPLAY APPARATUS, INFORMATION DISPLAY SYSTEM FOR VEHICLE, AN...
- Publication number 20220326424
- Publication date Oct 13, 2022
- FUJIFILM CORPORATION
- Shinichi YOSHINARI
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD FOR PRODUCING LIGHT ABSORPTION ANISOTROPIC FILM
- Publication number 20220281191
- Publication date Sep 8, 2022
- FUJIFILM CORPORATION
- Takashi YONEMOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLARIZER AND IMAGE DISPLAY DEVICE
- Publication number 20220204856
- Publication date Jun 30, 2022
- FUJIFILM CORPORATION
- Yumi KATO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIQUID CRYSTAL COMPOSITION, DICHROIC MATERIAL, LIGHT ABSORPTION ANI...
- Publication number 20220186119
- Publication date Jun 16, 2022
- FUJIFILM CORPORATION
- Takashi KATOU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LASER OSCILLATION ELEMENT
- Publication number 20220145183
- Publication date May 12, 2022
- FUJIFILM CORPORATION
- Yukito SAITOH
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR THE PREPARATION OF PHOTOALIGNING POLYMER MATERIALS AND C...
- Publication number 20220145182
- Publication date May 12, 2022
- ROLIC Technologies AG
- David PIRES
- G02 - OPTICS
Information Patent Application
LIQUID CRYSTAL COMPOSITION, CHOLESTERIC LIQUID CRYSTAL LAYER, CURED...
- Publication number 20220112427
- Publication date Apr 14, 2022
- FUJIFILM CORPORATION
- Keisuke KODAMA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL LAYER, LAMINATE, AND IMA...
- Publication number 20220106524
- Publication date Apr 7, 2022
- FUJIFILM CORPORATION
- Hiroyuki OKUSA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POLYMERIZABLE LIQUID CRYSTAL INK FORMULATIONS
- Publication number 20220056340
- Publication date Feb 24, 2022
- Merck Patent GmbH
- Eduardo Beltran GRACIA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Poly(meth)acrylate derivatives

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Liquid crystal composition, light absorption anisotropic film, lami...

Polarizer and image display device

Optical laminate, viewing angle control system, image display device

Liquid crystal composition, dichroic material, light absorption ani...

Polarization diffraction element and vector beam mode detection sys...

Optically anisotropic film, optical film, and display device

Liquid crystal composition, light absorption anisotropic film, lami...

Image display apparatus, information display system for vehicle, an...

Polarizer and image display device

Liquid crystal composition, light absorption anisotropic film, lami...

Liquid crystal composition, light absorption anisotropic film, lami...

Liquid crystal composition, method for producing high-molecular wei...

Liquid crystal composition, reflective layer, method for producing...

Liquid crystalline composition, side chain type polymer liquid crys...

Photoreactive liquid crystal composition, display element, optical...

Dielectric devices and methods of fabrication

Liquid crystalline composition, polymer liquid crystal compound, li...

Water-responsive interpenetrating polymer network, preparation meth...

Polarizer and image display device

Ligand, nanoparticle, and thin film with the same

Compound, composition, cured object, optically anisotropic body, an...

Liquid crystal polymer device and method

Liquid crystal composition, method for producing reflective layer,...

Side-chain liquid crystal polymer, liquid crystal composition, reta...

Laminate, manufacturing method of laminate, and image display device

Actuator device, actuation method and manufacturing method

Polymerizable liquid crystal composition, optically anisotropic lay...

Programmable nanocomposites

Liquid crystal aligning agent, liquid crystal alignment film, and l...

Retardation film

Patents Applicationslast 30 patents

DECORATIVE FILM AND MANUFACTURING METHOD OF SAME, LAMINATE AND MANU...

LIQUID CRYSTALLINE COMPOSITION, CURED PRODUCT, OPTICALLY ANISOTROPI...

IMAGE RECORDED MATERIAL AND IMAGE RECORDING METHOD

THREE-DIMENSIONAL HELICAL-ARTIFICIAL-FIBROUS-MUSCLE STRUCTURED TUBU...

COMPOUND, COMPOSITION, CURED PRODUCT, OPTICALLY ANISOTROPIC BODY, O...

Oligomer Stabilized Liquid Crystal Light Valve

PHOTO-ALIGNMENT THERMOSETTING LIQUID CRYSTAL COMPOSITION, ALIGNMENT...

LIGHT ABSORPTION ANISOTROPIC FILM, LAMINATE, AND IMAGE DISPLAY DEVICE

OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, AND DISPLAY DEVICE

POLYMERIZABLE LIQUID CRYSTAL MATERIAL AND POLYMERIZED LIQUID CRYSTA...

DECORATIVE MATERIAL, DECORATIVE PANEL, ELECTRONIC DEVICE, AND MANUF...

LIGHT ABSORPTION ANISOTROPIC FILM, OPTICAL FILM, AND LIQUID CRYSTAL...

MANUFACTURING METHOD FOR OPTICALLY ANISOTROPIC FILM

DECORATIVE FILM, DECORATIVE MOLDED ARTICLE, DECORATIVE PANEL, AND E...

COMPOUND, LIQUID CRYSTAL COMPOSITION, CURED SUBSTANCE, AND FILM

OPTICAL FILM, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE

QUANTUM DOT-CONTAINING POLYMERIZABLE COMPOSITION, CURED PRODUCT, WA...

LIQUID CRYSTAL COMPOSITION, LIGHT ABSORPTION ANISOTROPIC FILM, LAMI...

OPTICAL LAMINATE, VIEWING ANGLE CONTROL SYSTEM, IMAGE DISPLAY DEVICE

POLARIZER AND IMAGE DISPLAY DEVICE

LIQUID CRYSTAL COMPOSITION, LIGHT ABSORPTION ANISOTROPIC FILM, LAMI...

IMAGE DISPLAY APPARATUS, INFORMATION DISPLAY SYSTEM FOR VEHICLE, AN...

METHOD FOR PRODUCING LIGHT ABSORPTION ANISOTROPIC FILM

POLARIZER AND IMAGE DISPLAY DEVICE

LIQUID CRYSTAL COMPOSITION, DICHROIC MATERIAL, LIGHT ABSORPTION ANI...

LASER OSCILLATION ELEMENT

METHOD FOR THE PREPARATION OF PHOTOALIGNING POLYMER MATERIALS AND C...

LIQUID CRYSTAL COMPOSITION, CHOLESTERIC LIQUID CRYSTAL LAYER, CURED...

LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL LAYER, LAMINATE, AND IMA...

POLYMERIZABLE LIQUID CRYSTAL INK FORMULATIONS