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Colorant compound and coloring composition containing it

A technology for coloring compositions and compounds, which is applied in the direction of photoengraving process, isoindoline dyes, instruments, etc. of pattern surface, can solve the problems of difficulty in manufacturing film color filters, difficulty in increasing the pigment content of photosensitive resin compositions, and the like, Achieves stable color reproducibility, excellent heat resistance and solubility, and reduced usage

Active Publication Date: 2021-04-09
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various colors or colorants are known that can be used to manufacture color filters, but methods of improving color purity, brightness, and contrast using only known coloring materials are gradually reaching their limits
[0009] In particular, when a color filter is manufactured by a pigment dispersion method, it is difficult to increase the pigment content in a photosensitive resin composition due to pigment derivatives and dispersants added according to the pigment dispersion method, and thus it is difficult to manufacture a thin film color filter

Method used

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  • Colorant compound and coloring composition containing it
  • Colorant compound and coloring composition containing it
  • Colorant compound and coloring composition containing it

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0190] Preparation Example 1: Synthesis of Compound 1

[0191]

[0192] Compound A was obtained according to the method described in US Patent Publication No. 6849116 B2. In detail, 25.5 g of phthalimide and 7.4 g of paraformaldehyde were mixed and added to 560 g of 3.6% by weight of oleum at 25°C. The mixture was heated to 50°C and stirred for 30 minutes.

[0193] 100 g of Pigment Yellow 138 (BASF) was added thereto, and the mixture was heated to 100° C. and stirred for 3 hours. Subsequently, the mixture was added to 3500 g of water, and stirred at 60° C. for 30 minutes. The precipitated product thus obtained was filtered and washed with water until the product became neutral, and then dried in a vacuum oven at 90° C. to obtain compound (A).

[0194] Next, 3g (3.417mmol) compound (A), 0.52g (7.033mmol) 1-butanethiol and 1.94g (14.06mmol) K 2 CO 3 Place in 500ml single neck RBF and stir at 60°C for 24 hours. The reaction solution was cooled to room temperature, and ...

preparation example 2

[0195] Preparation Example 2: Synthesis of Compound 2

[0196]

[0197] Compound B was obtained according to the method described in US Patent Publication No. 6849116 B2 in the same manner as in Preparation Example 1, except that 1,8-naphthalimide was used instead of phthalimide.

[0198] Next, 3g (3.32mmol) compound (B), 0.49g (6.65mmol) 1-butanethiol and 1.83g (13.28mmol) K 2 CO 3 Place in 500ml single neck RBF and stir at 60°C for 24 hours. The reaction solution was cooled to room temperature, and filtered under reduced pressure. The solvent was removed under reduced pressure, and the resultant was purified by column to obtain compound 2. APCI negative MS analysis results showed that the molecular weight of compound 2 was 957.

preparation example 3

[0199] Preparation Example 3: Synthesis of Compound 3

[0200]

[0201] Compound C was obtained according to the synthesis method described in Korean Patent Publication No. 2013-0137028, and then Compound D was obtained according to the method described in US Patent Publication No. 6849116 B2.

[0202] Next, 3g (3.92mmol) compound (D), 0.58g (7.84mmol) 1-butanethiol and 2.17g (15.69mmol) K 2 CO 3 Place in 500ml single neck RBF and stir at 60°C for 24 hours. The reaction solution was cooled to room temperature, and filtered under reduced pressure. The solvent was removed under reduced pressure, and the resultant was purified by column to obtain compound 3. APCI negative MS analysis results showed that the molecular weight of compound 3 was 819.

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PUM

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Abstract

Colorant compounds and coloring compositions comprising the same are provided. More particularly, there are provided a colorant compound having excellent color characteristics, heat resistance, and solubility so as to be applicable to manufacture a new structure of a color filter and a coloring composition comprising the same.

Description

technical field [0001] Cross References to Related Applications [0002] This application is based on and claims priority from Korean Patent Applications No. 10-2017-0112691 and No. 10-2018-0098142 filed on September 4, 2017 and August 22, 2018, respectively, the disclosures of which are incorporated by reference Incorporated into this article as a whole. [0003] The present invention relates to colorant compounds and coloring compositions comprising the same. More particularly, the present invention relates to a novel structure colorant compound having excellent color characteristics, heat resistance and solubility and a coloring composition comprising the same. Background technique [0004] Color filters in liquid crystal display devices (LCD), organic light emitting diodes (OLED), etc. are used to produce color images in display devices, and color filters can be coated, cured, and patterned with colors on a base substrate using various methods process to manufacture....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B57/04G03F7/105G03F7/032G03F7/00G02B5/20G02F1/1335
CPCC09B57/04G02B5/20G02F1/133514G03F7/0007G03F7/032G03F7/105
Inventor 朴锺镐崔相雅梁承秦李多美朴相均金载骏李在容李修莲郑智惠
Owner LG CHEM LTD
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