Unlock instant, AI-driven research and patent intelligence for your innovation.

Mixtures containing compounds with mesogenic groups

一种混合物、化合物的技术，应用在液晶材料、化学仪器和方法、仪器等方向，能够解决涂膜凹陷、凹陷、取向性等光学特性降低等问题，达到优异取向性的效果

Active Publication Date: 2022-02-25
DIC CORP
View PDF23 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polarizing films and retardation films can be combined by applying a polymerizable liquid crystal composition to a substrate, heating the polymerizable liquid crystal composition in an aligned state through an alignment film, or irradiating active energy rays. However, there is a problem that when the polymerizable liquid crystal composition is applied to a substrate and heated, "coating depression" of the polymerizable liquid crystal composition occurs on the substrate (Patent Document 1)
In this field, various polymeric compounds are known, but these polymeric compounds have the following problem: they may deteriorate due to formation of polymer components during long-term storage
If an optically anisotropic body is produced using a polymerizable compound that has been stored for a long period of time, coating film depressions will easily occur during coating, and optical properties such as orientation will decrease

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mixtures containing compounds with mesogenic groups
  • Mixtures containing compounds with mesogenic groups
  • Mixtures containing compounds with mesogenic groups

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1～13-3、 comparative example 1-1～13-2

[0292] Each of formula (A2), formula (A9), formula (A11) to formula (A13), formula (B1) to formula (B5), formula (B8), formula (B11) and formula (B12) represented Mixtures of compounds, mixtures of different degrees of refinement are prepared. Any compound is produced by a known synthetic method and a standard method. The obtained crude material is purified once or more as described below, and the usage-amounts of the refining agents and solvents are appropriately adjusted to obtain mixtures having different YI values.

[0293] (purification method 1)

[0294] The crude material was dissolved in dichloromethane, and activated carbon was added for heating and stirring. Activated carbon was removed by filtration, and the solvent was distilled off. The mixture was obtained by column chromatography (silica gel and alumina) and recrystallization.

[0295] (Refinement method 2)

[0296] The crude material was dissolved in dichloromethane and hexane, and purified by column chrom...

Embodiment 14-1～18-3、 comparative example 14-1～18-2

[0310] The matrix liquid crystal (1) was prepared using the compounds shown in Table 4 below. The matrix liquid crystal (1) had a yellowness of 0.32 and a YI / Δn of 1.7. The yellowness of the matrix liquid crystal (1) was measured by dissolving the matrix liquid crystal (1) in a tetrahydrofuran solution so as to make a 20% solution, and performing the measurement in the same manner as the above-mentioned compound. YI / Δn of the matrix liquid crystal (1) was calculated by dividing the measured value by the refractive index anisotropy (Δn) of the matrix liquid crystal (1).

[0311] [Table 4]

[0312]

[0313] 30.0% of the mixture containing the compound represented by the formula (A2), 50.0% of the mixture containing the compound represented by the formula (A9), and 30.0% of the mixture containing the compound represented by the formula (B1) were respectively added to the above-mentioned mother liquid crystal (1). %, 40.0% of the mixture containing the compound represented by t...

Embodiment 19-1～23-3、 comparative example 19-1～23-2

[0332] The matrix liquid crystal (2) was prepared using the compounds shown in Table 6 below. The matrix liquid crystal (2) had a yellowness of 0.33 and a YI / Δn of 1.8. In addition, the yellowness of this matrix liquid crystal (2) was measured by carrying out similarly to the said matrix liquid crystal (1).

[0333] [Table 6]

[0334]

[0335] 5.0% of the mixture containing the compound represented by the formula (A11), 10.0% of the mixture containing the compound represented by the formula (A12), and 20.0% of the mixture containing the compound represented by the formula (A13) were added to the above-mentioned mother liquid crystal (2). %, 60.0% of the mixture containing the compound represented by the formula (B3), and 30.0% of the mixture containing the compound represented by the formula (B4), to obtain Examples 19-1 to 23-3 and Comparative Examples 19-1 to 23- 2 liquid crystal compositions. The yellowness (YI), refractive index anisotropy (Δn) and YI / Δn of the liqui...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
UV radiationaaaaaaaaaa
weight-average molecular weightaaaaaaaaaa
Login to View More

Abstract

The present invention provides a mixture, a composition containing the mixture, and an optically anisotropic body using the composition. The mixture contains a compound having a mesogenic group and satisfies the formula represented by (Formula 1), and the When the compound is used to constitute a composition and produce an optically anisotropic body, the mixture is less likely to cause depressions in the coating film, and has excellent orientation when it is formed into an optically anisotropic body. 1.0≦YI / Δn≦50.0 (Formula 1) (wherein, YI represents the yellowness of the mixture, and Δn represents the refractive index anisotropy of the compound having a mesogenic group.).

Description

technical field [0001] The present invention relates to a mixture having a value of YI / Δn in a specific range, a composition containing the same, a polymer obtained by polymerizing a polymerizable composition, and optical anisotropy obtained by polymerizing the polymerizable composition A body and a retardation film obtained by polymerizing the polymerizable composition, and a display device, an optical element, a light-emitting device, a printed matter, an optical information recording device, and the like having the optically anisotropic body. Background technique [0002] A polymerizable liquid crystal composition containing a compound (polymerizable compound) having a polymerizable functional group is useful as a structural member of an optically anisotropic body, and the optically anisotropic body is used in various applications such as a polarizing film and a retardation film. like LCD monitors. Polarizing films and retardation films can be combined by applying a poly...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/38C09K19/54G02B5/30G02F1/13363
CPCC09K19/02C09K19/2014C09K19/322G02F1/13363C09K2019/0448C09K2019/181C09K2019/2035C09K2019/2078C09K2019/3075C09K2019/3083G02B5/3083G02B5/30C08F222/205B42D25/364C08F2800/20C09K19/3809G02B5/3016
Inventor 堀口雅弘山本美花桑名康弘
Owner DIC CORP