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Coatings and near-infrared absorption filters

A near-infrared, infrared technology, applied in the direction of radiation-absorbing coatings, instruments, coatings, etc., can solve the problems of no hint, no record, etc., and achieve the effect of high light resistance

Inactive Publication Date: 2018-05-25
ADEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned Patent Documents 1 to 5, there is neither description nor suggestion that the light resistance of a film obtained by applying a paint to a substrate by using diacetone alcohol as a solvent is improved.

Method used

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  • Coatings and near-infrared absorption filters
  • Coatings and near-infrared absorption filters
  • Coatings and near-infrared absorption filters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] [Example 1] Preparation of Coating No.1

[0062] 0.05 g of bis(trifluoromethanesulfonyl)imide salt of compound No. 1 as (A) component, and 2.75 g of diacetone alcohol as (C) component were added, stirred and dissolved. Then, 5 g of SPC-2000 (manufactured by Showa Denko Co., Ltd.) was mixed as (B) component, and it stirred until the insoluble matter disappeared, and paint No. 1 was obtained.

Embodiment 2～6 and comparative example 1～2

[0063] [Examples 2-6 and Comparative Examples 1-2] Preparation of Coating No.2-No.6 and Comparative Coating No.1-No.2

[0064] By the procedure similar to Example 1, each component was mixed with the formulation shown in Table 1, and paint No.2-No.6 and comparative paint No.1-No.2 were obtained.

[0065] Table 1

[0066]

[0067] *1: SPC-1000: Manufactured by Showa Denko

[0068] *2: Z-250: Made by Daicel Cytec

[0069] *3: Sumipex LG: Sumitomo Chemical Co., Ltd.

[0070] *4: DAA: diacetone alcohol

[0071] *5: DMAc: Dimethylacetamide

Embodiment 7～12 and comparative example 3～4

[0072] [Examples 7 to 12 and Comparative Examples 3 to 4] Production of near-infrared absorption filters No. 1 to No. 6 and comparison near-infrared absorption filters No. 1 to No. 2

[0073] On Lumirror U98, which is a PET film manufactured by Toray Co., Ltd., 2.5 mL of the coatings No. 1 to No. 6 obtained in Examples 1 to 6 and the comparative coatings No. 1 to No. 2 obtained in Comparative Examples 1 to 2 were dropped, Coating was done using a #14 rod coater. Thereafter, drying was performed at 100° C. for 15 minutes to manufacture near-infrared absorption filters No. 1 to No. 6 and comparative near-infrared absorption filters No. 1 to No. 2.

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Abstract

The present invention provides a paint containing an infrared absorbing pigment (A), a resin (B) and a solvent (C) and diacetone alcohol as an essential component of the solvent (C), and a near infrared absorbing filter formed using the paint. The infrared absorbing dye (A) is preferably a diimonium compound, especially a diimonium compound represented by the following general formula (I). In the formula, R11, R12, R13, R14, R15, R16, R17, and R18 represent a hydrogen atom or a C1-10 alkyl group that may have a substituent, and R19, R20, R21, and R22 represent a hydrogen atom, a halogen atom, and may have A C1-10 alkyl group of the substituent or an amino group that may have a substituent, the methylene group in the above-mentioned alkyl group may be substituted by -O- or -CH=CH-, t represents the number of 1 to 4, and Anq- represents q Valence anions.

Description

technical field [0001] The present invention relates to a paint containing an infrared absorbing pigment, a resin, and diacetone alcohol as a solvent, and a near infrared absorbing filter formed using the paint. Background technique [0002] Near-infrared absorption filters are used in display panels such as plasma display panels, CRTs, fluorescent display tubes, field emission displays, etc. due to their high transmittance in the visible light region and their ability to efficiently shield infrared rays; Photodiodes, CCDs, and C-MOSs used in light-receiving elements and imaging elements of equipment; heat-ray shielding filters for optical lenses, automotive glass, glass for building materials, solar cell modules, etc.; light-receiving elements, camera components etc. [0003] Patent Document 1 discloses a positive photosensitive resin composition containing diacetone alcohol as a solvent, and Patent Document 2 discloses a colorant-containing curable composition containing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/00C09D5/32C09K3/00G02B5/22C09B53/02C09D7/41
CPCC09D7/20C09B53/02C09D5/32C09D201/00G02B5/223G02B5/208G02B1/04C08K5/29C09D7/41
Inventor 前田洋介清水正晶
Owner ADEKA CORP
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