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Pigment dispersion composition, optical solidifying composition, color filter and manufacturing method thereof

A pigment dispersion and photocurable technology, applied in the fields of filters, optics, organic dyes, etc., can solve the problems of reduced alkali solubility, difficult introduction, and insufficient pigment dispersion and stability, and achieve high pigment dispersion. good stability, high dispersion stability and good color properties

Active Publication Date: 2013-07-31
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the dispersibility is insufficient, fringe (sawtooth pattern at the edge) or surface roughness will occur on the formed colored resist film, and the chromaticity or dimensional accuracy of the manufactured color filter will decrease, or the contrast will deteriorate significantly.
In addition, when the dispersion stability is not sufficient, in the manufacturing process of the color filter, the following problems are likely to occur: the uniformity of the film thickness of the colored photosensitive composition in the coating process is reduced, or the sensitivity of the photosensitive composition in the exposure process is reduced. Reduced, or reduced alkali solubility in the developing process
[0011] However, in the pigment dispersant described in Japanese Unexamined Patent Application Publication No. 2002-296770, the combined use of a basic pigment dispersant and an acidic pigment dispersant may cause crosslinking between various pigments.
In addition, the acidic pigment dispersant is not used to improve the dispersibility of the pigment, and even if the pigment dispersant is used together, the dispersibility and stability of the pigment may not be sufficient
[0012] In addition, the pigment dispersant described in JP-A-9-77994 is not one in which many organic pigments or heterocyclic rings have been introduced into the end of the polymer, and the introduction is difficult, so it is difficult to say that the adsorption to the pigment surface is sufficiently strong.
Therefore, sometimes an adsorption layer sufficient for dispersion stabilization cannot be ensured
In addition, JP-A-9-77994 does not describe the improvement of dispersibility and dispersion stability by combining with other dispersants.
[0013] In addition, the pigment dispersant described in JP-A-2002-273191 uses a polymer reaction to introduce terminal groups. From this point of view, it is difficult to say that it is a synthetic method that can industrially advantageously produce a pigment dispersant. In addition, in Japanese Patent Laid-Open No. 2002-273191 does not describe the use of combination with other dispersants to improve dispersibility and dispersion stability

Method used

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  • Pigment dispersion composition, optical solidifying composition, color filter and manufacturing method thereof
  • Pigment dispersion composition, optical solidifying composition, color filter and manufacturing method thereof
  • Pigment dispersion composition, optical solidifying composition, color filter and manufacturing method thereof

Examples

Experimental program
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Embodiment

[0484] Although the present invention will be described in more detail below using examples, it is not limited to the following examples. However, unless otherwise specified, "%" and "part" are mass standards.

[0485]

[0486] Chain transfer agents B-1 to B-12 (thiol compounds represented by the general formula (3) already described) were synthesized as shown below.

Synthetic example B-1

[0488] In 93.60 parts of dimethylformamide, 7.83 parts of dipentaerythritol hexa(3-mercaptopropionate) [DPMP; manufactured by Sakai Chemical Industry Co., Ltd., the following compound (33)] and 15.57 parts having adsorption sites and having carbon - A carbon double bond compound (the following compound (A-1)), heated to 70°C under a nitrogen stream. 0.06 parts of 2,2'-azobis(2,4-dimethylvaleronitrile) [V-65, manufactured by Wako Pure Chemical Industries, Ltd.] was added thereto, followed by heating for 3 hours. Furthermore, 0.06 part of V-65 was added, and it was made to react at 70 degreeC under nitrogen flow for 3 hours. By cooling to room temperature, a 20% solution of the thiol compound (chain transfer agent B-1) in the present invention shown below was obtained.

[0489]

Synthetic example B-2

[0491] In the above Synthesis Example B-1, 15.57 parts of the compound (A-1) having an adsorption site and a carbon-carbon double bond and 93.60 parts of dimethylformamide were changed to 14.61 parts of a compound (A-1) having an adsorption site and a carbon-carbon double bond. Bonded compound (A-2) and 89.78 parts of dimethylformamide were carried out in the same manner as above-mentioned Synthesis Example B-1 to obtain the thiol compound (chain transfer agent B- 2) A 20% solution.

[0492]

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Abstract

The invention provides a paint scattering composition, a photocureable composition, a color filter and manufacturing method thereof. The paint scattering composition is characterized in at least having a (a) paint, a (b) solvent, a (c) first dispersant of a macromolecular compound expressed by formula (1) and a (d) second dispersant different from the first dispersant. In the formula, R<1> is a (m+n)valent organic connection group; R<2> is a single bond or bivalent organic connection group; A<1> is a monovalent organic group that contains at least one of an organic pigment structure, a heterocyclic structure, an acidic group, a group containing a basic nitrogen atom, an uramido, an urethane group, a group containing a ligand oxygen atom, an alkyl with more than four carbon atoms, an alkoxyl silicyl, an epoxyl, an isocyanate group, a hydroxyl, and an ionic functional group; m: 1 to 8; n: 2 to 9; m+n: 3 to 10; P<1>: macromolecule framework.

Description

technical field [0001] The invention relates to a pigment dispersion composition, a photocurable composition, a color filter and a manufacturing method thereof. Background technique [0002] Practical pigments that can exhibit vivid hues and high tinting strength are generally composed of fine particles. However, if the pigment particles are further miniaturized in order to obtain high coloring strength, the pigment dispersion composition often shows high viscosity, and sometimes not only the removal of the pigment dispersion composition from the disperser, but also the transportation of the pipeline (pipe line) becomes difficult. Difficult, and gels in storage, making it difficult to use. [0003] Color filters used in liquid crystal displays and the like are one of the application fields of pigment dispersion compositions. The color filter is manufactured by photolithography etc. using the following colored photosensitive composition, wherein the colored photosensitive c...

Claims

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Application Information

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IPC IPC(8): C09B67/10G03F7/004G03F7/00G02B5/20
CPCG03F7/004G03F7/0045G03F7/0047G03F7/20
Inventor 高桥秀知
Owner FUJIFILM CORP
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