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Microparticles of water-insoluble compound and disperser thereof, their preparation method, and color filter

A water-insoluble, compound technology, applied in the treatment of dyed polymer organic compounds, instruments, filters, etc., can solve the problems of the absence of organic particle dispersibility and crystallinity, and achieve excellent stability over time and firmness, Achieve contrast, high contrast effect

Inactive Publication Date: 2010-03-24
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still no method that takes into account both the dispersibility and crystallinity of organic fine particles

Method used

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  • Microparticles of water-insoluble compound and disperser thereof, their preparation method, and color filter
  • Microparticles of water-insoluble compound and disperser thereof, their preparation method, and color filter
  • Microparticles of water-insoluble compound and disperser thereof, their preparation method, and color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0400] Hereinafter, the present invention will be described in more detail based on examples, but it should not be construed that the present invention is limited thereto. In addition, in this embodiment, "parts" and "%" are mass standards unless otherwise specified.

Synthetic example

[0402] (Synthesis of Monomer M-1)

[0403] 45.28 parts of 2-thiobarbituric acid and 13.82 parts of sodium hydroxide were dissolved in 200 parts of dimethyl sulfoxide, and heated at 25°C. 57.53 parts of chloromethylstyrenes were dripped there, and it heated and stirred at 55 degreeC further for 5 hours. After heating and stirring, 150 parts of methanol and 150 parts of distilled water were added to the reaction solution and stirred for 1 hour, then the solution was poured into 2000 parts of distilled water while stirring, and the obtained precipitate was filtered and washed to obtain 80.1 parts of monomer M-1.

[0404] (Synthesis of Polymer P-1)

[0405] Add the following monomer solution into the three-necked flask replaced by nitrogen, and stir with a stirrer (Shinto Science Co., Ltd.: Three Way Motor), and heat up to 78° C. while introducing nitrogen into the flask, and Stir for 30 minutes. Then, the following initiator solution was added to the above liquid, followed by...

Embodiment 1

[0437] 2500 ml of a solution (which serves as a good solvent (first solvent)) of 70.5 ml of 25% tetramethylammonium hydroxide aqueous solution (manufactured by Wako Pure Chemical Industries, Ltd.) in 1,000 ml of N-methylpyrrolidone was heated at 80° C. Pigment Red 254 (trade name: Irgaphor Red BT-CF, manufactured by Chiba Specialty Chemical Co., Ltd.) and 30.0 g of graft copolymer P-1 were added thereto at the same time as 50 g to prepare a pigment solution 1. The viscosity of the pigment solution 1 was measured using a viscometer VM-10A-L (manufactured by CBC Materials Co., Ltd.). As a result, the viscosity of the pigment solution 1 at a liquid temperature of 25° C. was 13.3 mPa·s. Separately, 1000 ml of water containing 16 ml of 1 mol / L hydrochloric acid (manufactured by Wako Pure Chemical Industries, Ltd.) was prepared as a poor solvent.

[0438] At this time, the temperature was controlled at 15°C, and in the second solvent stirred at a rotation speed of 500 rpm using GK-...

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PUM

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Abstract

The present invention provides microparticles of a water-insoluble compound having excellent stability and firm performance, and their effective preparation methods. The microparticles of the water-insoluble compound is embedded with a dispersant, and is prepared by mixing a solution formed by dissolving the water-insoluble compound in a good solvent into a poor solvent, wherein the mixing mode isthat (i) adding the disperser in the good solvent and / or poor solvent, then mixing two obtained liquids; or (ii) furthermore, preparing the solution formed by dissolving the disperser in the good solvent, then dissolving the solution and the water-insoluble compound in the good solvent to form a solution, and mixing the solution with the poor solvent; wherein at least 10% by weight of the dissolved disperser is imbedded in the microparticles, and a degree of crystallinity of the microparticles is more than 65% in a disperse medium.

Description

technical field [0001] The present invention relates to fine particles of a water-insoluble compound, dispersions thereof, methods for producing the fine particles and dispersions, and color filters using them. Background technique [0002] In recent years, the improvement of quality and the expansion of applications of image-related precision devices such as color imaging elements and color liquid crystal display devices are rapidly progressing. Correspondingly, there is a strong demand for high-quality display performance of color filters as well. As color materials for color filters, organic pigments are gradually being used instead of dyes, and recently, stable pigment nanoparticles that are nanoscale and monodisperse have been demanded. Accordingly, research has been conducted on a method of manufacturing a novel color filter using an inkjet technique. Through this study, it is expected that the freedom of design will be greatly improved and the cost will be greatly r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/48C09B67/38G03F7/004C09D11/10G02B5/20B82Y20/00C09B67/10C09B67/20C09B67/46C09C3/10C09D17/00G02B5/22
CPCC09B67/0083C09B67/0084C09B67/0091C09D11/40G02B5/20G02B5/223G03F7/004
Inventor 两角一真藤村秀俊相见敬太郎宫下阳介佐佐木大辅汤本真敏
Owner FUJIFILM CORP