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Organic pigment composition for color filter, method for producing same, and color filter

A technology for organic pigments and color filters, applied in the field of organic pigment compositions for color filters, can solve problems such as unclearness and lack of systematic research, and achieves small change in hue, excellent heat resistance of brightness, and heat resistance. excellent effect

Active Publication Date: 2016-12-28
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regarding the surface treatment of organic pigments with synthetic resins, studies have been made according to general types of polymers such as (meth)acrylic resins, epoxy resins, polyester resins, polyurethane resins, etc. The improvement effect of the polymer in terms of dispersibility and dispersion stability is high, and what kind of structure of the polymer in the same type of polymer has the highest effect of the above-mentioned improvement selectively. Systematic research has not been carried out, and it is unclear. many

Method used

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  • Organic pigment composition for color filter, method for producing same, and color filter
  • Organic pigment composition for color filter, method for producing same, and color filter

Examples

Experimental program
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Effect test

Synthetic example 1）

[0086] Put 1540 parts of propylene glycol monomethyl ether acetate into a four-necked flask equipped with a stirrer, a thermometer, a cooling pipe and a nitrogen gas inlet pipe, and after raising the temperature to 110° C. under a nitrogen stream, add the methyl methacrylate dropwise in 4 hours. 623 parts of n-butyl methacrylate, 307 parts of n-butyl methacrylate, 70 parts of glycidyl methacrylate, and 18 parts of t-butyl peroxy-2-ethylhexanoate (hereinafter referred to as TBPEH). After completion|finish of dripping, it was made to react at 110 degreeC for 7 hours, and the solution of the copolymer (B-1) with 40.5 % of non-volatile matter and a weight average molecular weight of 16,000 was obtained.

Synthetic example 2）

[0088] Put 1540 parts of propylene glycol monomethyl ether acetate into the same four-necked flask as Synthesis Example 1, and after heating up to 110° C. under nitrogen flow, add 597 parts of methyl methacrylate, methacrylic acid n- A mixed liquid composed of 261 parts of butyl ester, 142 parts of glycidyl methacrylate and 18 parts of TBPEH. After completion|finish of dripping, it was made to react at 110 degreeC for 7 hours, and the solution of the copolymer (B-2) with 39.8 % of non-volatile matter and a weight average molecular weight of 15,000 was obtained.

Synthetic example 3）

[0090] Put 1540 parts of propylene glycol monomethyl ether acetate into the same four-necked flask as Synthesis Example 1, and after raising the temperature to 110° C. under a nitrogen stream, add 547 parts of methyl methacrylate, methacrylic acid n- A mixed liquid composed of 173 parts of butyl ester, 280 parts of glycidyl methacrylate and 18 parts of TBPEH. After completion|finish of dripping, it was made to react at 110 degreeC for 7 hours, and the solution of the copolymer (B-3) with 40.0% of non-volatile matter and a weight average molecular weight of 16,000 was obtained.

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Abstract

The invention provides an organic pigment composition used for a color filter, a method for manufacturing thereof, and the color filter. In particular, the organic pigment composition which has excellent saturation chromaticity on a coloring material and tonal variation of the coloring material is low even the composition is heated for long time, and the organic pigment composition has excellent heat resistance. The organic pigment composition used for the color filter is characterized in that calculated in mass conversion, each 100 parts of organic pigment (A) contains 0.1-15 parts of polymer (B). The polymer (B) contains epoxy groups and / or [alpha]-chlorohydrin group, and is obtained by polymerizing monomer mixtures which have side chains and contain more than two types of (methyl)acrylate monomer with different carbon numbers.

Description

technical field [0001] This invention relates to the organic pigment composition for color filters, its manufacturing method, and a color filter. Background technique [0002] When dispersing organic pigments in a medium that needs to be colored, in order to disperse more easily, or to enhance the stability in the dispersed medium, surfactants and organic pigment derivatives are often used for surface treatment of organic pigments. This surface treatment can improve the dispersibility and dispersion stability of the organic pigment without any surface treatment. [0003] When the medium to be dispersed is a synthetic resin, the synthetic resin is also often used in the surface treatment. Specifically, a method of subjecting an organic pigment to a solvent salt grinding treatment in the presence of an acrylic resin nonvolatile component, etc. are known. [0004] Regarding the surface treatment of organic pigments with synthetic resins, studies have been made according to ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/20G03F7/004G02B5/20
CPCC09B67/006G02B5/20G03F7/004G03F7/0045G03F7/20G03F7/2002
Inventor 藤卷正典德冈真由美木村亮郡司靖彦清都育郎岛田胜德高桥诚治
Owner DIC CORP
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