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Processed pigment and pigment dispersion composition using the same, colored photosensitive composition

A technology for processing pigments and pigment dispersion, which is applied in the fields of processing pigments, pigment dispersion compositions using them, and colored photosensitive compositions, and can solve problems such as reduced alkali solubility, reduced sensitivity, and insufficient dispersant adsorption persistence. , to achieve the effect of inhibiting aggregation

Inactive Publication Date: 2009-06-03
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the chromaticity or dimensional accuracy of the manufactured color filter is lowered, or the contrast is remarkably deteriorated
In addition, when the dispersion stability of the pigment is insufficient, problems such as decreased uniformity of film thickness of the colored curable composition in the coating process or poor sensitivity in the exposure process are likely to occur particularly in the color filter manufacturing process. Reduced, or reduced alkali solubility in the developing process
However, in this technique, it is difficult to obtain effective dispersion stability and suppress strong secondary aggregation of fine pigments for a long period of time because the dispersant has insufficient adsorption to the pigment and its sustainability.

Method used

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  • Processed pigment and pigment dispersion composition using the same, colored photosensitive composition
  • Processed pigment and pigment dispersion composition using the same, colored photosensitive composition
  • Processed pigment and pigment dispersion composition using the same, colored photosensitive composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0371] Hereinafter, the present invention will be described in more detail using examples, but the present invention is not limited to the following examples unless the gist of the present invention is exceeded. In addition, as long as there is no prior statement, "parts" are the standard of quality.

[0372]

[0373] (Synthesis of Specific Copolymer P-1)

[0374] Stir at a reaction temperature of 145°C for 60 minutes MMA 12.6g, MAA 2.7g, 2,6-diethyl-2,6-dimethyl-4-oxo-1-(1-ethoxyphenoxy)piperidine 70.6g and 150g of 1-methoxy-2-propanol. 113.4 g of MMA and 24.3 g of MAA were slowly added to the reaction mixture over 2.5 hours. Next, the temperature of the reaction mixture was maintained for 5 hours. The residual monomer was distilled off to obtain 135.6 g of an MMA-MAA copolymer.

[0375]Together with 460g diethylene glycol ethyl ether acetate, at a reaction temperature of 145°C, heat and stir for 2 hours 27.0g MMA-MAA copolymer (the pigment non-absorptive block) and M-1...

Embodiment 2

[0434] [Example 2, Comparative Example 2]

[0435]

[0436] The components of the following composition (1) were mixed and stirred and mixed for 3 hours using a homogenizer at a rotation speed of 3,000 r.p.m. to prepare a mixed solution containing a pigment.

[0437] [composition (1)]

[0438] ・Processed pigments (pigments listed in Table 2) 95 parts

[0439] ・Derivative A (the following structure [Chemical 28]) 5 parts

[0440] Dispersant (30% 1-methoxy-2-propyl acetate solution of the dispersant listed in Table 8) (amount listed in Table 8)

[0441] 750 parts of 1-methoxy-2-propyl acetate

[0442] Next, the above-obtained mixed solution was further dispersed for 6 hours using a bead disperser DISPERMAT (manufactured by GETZMANN) with 0.3 mmφ zirconia beads, and thereafter, a high-pressure disperser NANO-3000-10 with a decompression mechanism was further used. (manufactured by Japan Ha-Yi (ビ-イ-イ-) Co., Ltd.), at 2,000kg / cm 3 Dispersion treatment is carried out at a flo...

Embodiment 3

[0473] [Example 3, Comparative Example 3]

[0474]

[0475] The components of the following composition (3) were mixed and stirred and mixed for 3 hours using a homogenizer at a rotation speed of 3,000 r.p.m. to prepare a mixed solution containing a pigment.

[0476] [Composition (3)]

[0477] ・Processed pigments (pigments listed in Table 10) 120 parts

[0478] Dispersant (30% 1-methoxy-2-propyl acetate solution of the dispersant recorded in Table 10) 250 parts

[0479] 750 parts of 1-methoxy-2-propyl acetate

[0480] Next, the above-obtained mixed solution was further dispersed for 6 hours using a bead disperser DISPERMAT (manufactured by GETZMANN) with 0.3 mmφ zirconia beads, and thereafter, a high-pressure disperser NANO-3000-10 with a decompression mechanism was further used. (manufactured by Japan Hayiyi Co., Ltd.), at 2,000kg / cm 3 Dispersion treatment is carried out at a flow rate of 500g / min under a certain pressure. This dispersion treatment was repeated 10 time...

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Abstract

The present invention provides a processed pigment, a pigment dispersion composition and a photosensitive composition with good pigment dispersion and excellent developing performance even though thinning the pigment for obtaining a color filter with excellent color characteristics of contrast and the like. The processed pigment is made by covering a pigment using a block copolymer having pigment absorbability block and pigment non-absorbability block.

Description

technical field [0001] The present invention relates to a processed pigment, a pigment dispersion composition, a colored photosensitive composition containing the same, a color filter, a liquid crystal display element, and a solid-state imaging element manufactured using the colored photosensitive composition. Background technique [0002] The color filter is manufactured by forming a colored pattern with a colored photosensitive composition containing a pigment dispersion in which an organic pigment or an inorganic pigment is dispersed, by a photolithography method, an inkjet method, or the like. Composition, multifunctional monomer, polymerization initiator, alkali soluble resin and other components. [0003] In recent years, in liquid crystal display (LCD) applications, not only monitors (monitors) but also color filters tend to be used in televisions (TVs). With the expansion of its use, high color characteristics are required for color filters such as chromaticity and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/08C09C3/10C09D17/00G03F7/004G02B5/20G02F1/1335
CPCC09B67/0004C09B67/0084C09C3/10G02B5/20G02F1/133514
Inventor 菊池涉藤牧一广
Owner FUJIFILM CORP
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