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Cured film-forming composition, alignment material, and phase difference material

A technology for curing films and compositions, applied in coatings, instruments, optics, etc., can solve problems such as the reduction of liquid crystal alignment ability, and achieve the effects of excellent solvent resistance, high sensitivity, liquid crystal alignment and excellent light transmittance

Pending Publication Date: 2019-11-15
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the alignment layer is exposed to solvents, the liquid crystal alignment ability may be significantly reduced

Method used

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  • Cured film-forming composition, alignment material, and phase difference material
  • Cured film-forming composition, alignment material, and phase difference material
  • Cured film-forming composition, alignment material, and phase difference material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0204] Hereinafter, the present invention will be specifically described with reference to examples of the present invention, but the present invention should not be limited thereto.

[0205] [Abbreviated symbols used in Examples]

[0206] The meanings of the abbreviations used in the following examples are as follows.

[0207]

[0208] CIN1

[0209]

[0210] CIN2

[0211]

[0212] CIN3

[0213]

[0214] CIN4

[0215]

[0216] GMA: glycidyl methacrylate

[0217] AIBN: α,α'-Azobisisobutyronitrile

[0218] BMAA: N-Butoxymethacrylamide

[0219] HEMA: 2-Hydroxyethyl methacrylate

[0220] MMA: methyl methacrylate

[0221]

[0222] HCM: Melamine crosslinking agent represented by the following structural formula [Cymel (CYMEL) (registered trademark) 303 (manufactured by Mitsui Cytec Co., Ltd.)]

[0223]

[0224]

[0225] PTSA: p-toluenesulfonic acid monohydrate

[0226]

[0227] D-1: A compound having a hydroxyl group and an acryloyl group represented b...

reference example 1

[0240] Synthesis of CIN1

[0241] CIN1 was synthesized according to the synthesis method described in JP 2013-514449 A.

reference example 2

[0242] Synthesis of CIN2

[0243] GMA 8.3g (58.4mmol), 4-methoxycinnamic acid 20.7g (116.2mmol), dibutylhydroxytoluene 0.2g, triphenylethyl bromide 0.3g, two 80 mL of alkanes were mixed and heated at 90°C for 3 days. After the reaction is complete, the two After the alkane was distilled off under reduced pressure, 150 mL of ethyl acetate was added, the insoluble matter was separated by filtration, and 100 mL of aqueous sodium bicarbonate solution was added for washing three times to remove excess methoxycinnamic acid. Ethyl acetate was distilled off under reduced pressure to obtain CIN 216.5 g (yield: 88%) of the target substance.

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PUM

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Abstract

Provided is a cured film-forming composition for forming a cured film which exhibits excellent liquid crystal alignment properties and light transmissivity when used as an alignment material with a layer of a polymerizable liquid crystal disposed thereupon. A cured film-forming composition containing (A) a polymer having a photodimerization moiety and a self-crosslinking moiety; an alignment material characterized by being obtained using the composition; and a phase difference material characterized by being obtained using the composition.

Description

technical field [0001] This invention relates to the composition for cured film formation used as the liquid crystal aligning agent for photo-alignment which orients a liquid crystal molecule, and the orientation material and retardation material obtained from this composition for cured film formation. In particular, the present invention relates to a patterned retardation material used in the production of circularly polarized glasses-type 3D displays, and a retardation material used in circularly polarizing plates used as antireflection films in organic EL displays. The cured film-forming composition of the liquid crystal aligning agent for photo-alignment, the orientation material obtained from this cured film-forming composition, and a retardation material. Background technique [0002] In the case of a circularly polarized glasses-type 3D display, a phase difference material is usually disposed on a display element such as a liquid crystal panel that forms an image. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C08L101/02C09D161/28G02B5/30G02F1/13363G02F1/1337
CPCC08L101/02C09D133/14C09D161/28G02B5/30G02F1/13363G02F1/1337
Inventor 伊藤润菅野裕太畑中真
Owner NISSAN CHEM IND LTD