Unlock instant, AI-driven research and patent intelligence for your innovation.
Polymerizable compounds and optically anisotropic substances
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A compound and polymerizable group technology, applied in the field of optical anisotropy, can solve the problems of high surface hardness, small haze value, high adhesion, etc.
Active Publication Date: 2021-07-30
DIC CORP
View PDF25 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0008] The problem to be solved by the present invention is to provide a polymerizable compound that does not cause crystal precipitation etc. when added to a polymerizable composition and has high storage stability, and also provides a polymerizable composition that when produced The film-like polymer obtained by polymerizing the polymerizable composition containing the polymerizable compound has a small haze value, high uniformity of film thickness, less occurrence of uneven orientation, high surface hardness, high adhesion, and is resistant to ultraviolet radiation. Good rear appearance and less occurrence of orientation defects
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0811] (Example 1) Production of a compound represented by formula (A11-1)
[0812] [chem 212]
[0813]
[0814] The compound represented by the formula (A11-1-1), water and hydrochloric acid were charged into a reaction vessel. While ice-cooling, an aqueous sodium nitrite solution was added and stirred. Sodium azide was gradually added in small amounts and stirred at room temperature. The usual post-treatment is carried out to obtain the compound represented by the formula (A11-1-2).
[0815] The compound represented by the formula (A11-1-2), the compound represented by the formula (A11-1-3), water, and tert-butanol were charged into a reaction vessel. Add sodium ascorbate (Na ascorbate) aqueous solution, copper (II) sulfate pentahydrate, and heat and stir. After performing usual post-treatment, it is purified by column chromatography to obtain a compound represented by the formula (A11-1-4).
[0816] The compound represented by the formula (A11-1-4) and dichlorometha...
Embodiment 2
[0819] (Example 2) Production of a compound represented by formula (A11-2)
[0820] [CH213]
[0821]
[0822] Add the compound represented by formula (A11-2-1), the compound represented by formula (A11-2-2), calcium carbonate, tetrakis (triphenylphosphine) palladium (0), Tetrahydrofuran, water, heating and stirring. After performing usual post-treatment, it is purified by column chromatography to obtain a compound represented by the formula (A11-2-3).
[0823] Add the compound represented by formula (A11-2-3) in the reaction vessel of inactive atmosphere, add the compound represented by formula (A11-2-4), palladium acetate (II), (1,1 '-biphenyl-2-yl) dicyclohexylphosphine, sodium carbonate, N,N-dimethylacetamide, heating and stirring. After performing usual post-treatment, it is purified by column chromatography to obtain a compound represented by the formula (A11-2-5).
[0824] The compound represented by the formula (A11-2-5) and dichloromethane were charged into a reac...
Embodiment 3
[0827] (Example 3) Manufacture of the compound represented by formula (A12-1)
[0828] [chem 214]
[0829]
[0830] The compound represented by the formula (A12-1-1), the compound represented by the formula (A12-1-2), and water were charged into a reaction container. After heating and stirring, it was quenched with sodium bicarbonate water. After performing usual post-treatment, it is purified by column chromatography to obtain a compound represented by the formula (A12-1-3).
[0831] The compound represented by the formula (A12-1-3) and the compound represented by the formula (A12-1-4) were charged in a reaction vessel, and heated while irradiating with microwaves. After performing usual post-treatment, it is purified by column chromatography to obtain a compound represented by the formula (A12-1-5).
[0832] The compound represented by the formula (A12-1-5) and dichloromethane were charged into a reaction vessel. After adding boron tribromide and stirring, the compoun...
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
Property
Measurement
Unit
strength
aaaaa
aaaaa
Login to View More
Abstract
The subject of the present invention is to provide a polymerizable compound that does not cause crystal precipitation when added to a polymerizable composition and has high storage stability, and also provides a polymerizable composition that will contain The film-like polymer obtained by polymerizing the polymerizable composition of the polymerizable compound has a small haze value, high uniformity in film thickness, less occurrence of uneven orientation, high surface hardness, high adhesion, and excellent appearance after ultraviolet irradiation. It was also good, and the occurrence of orientation defects was small. Further, another object is to provide a polymer obtained by polymerizing the polymerizable composition, an optically anisotropic body using the polymer, and the like.
Description
technical field [0001] The present invention relates to a compound having a polymerizable group, a polymerizable composition containing the compound, a polymerizable liquid crystal composition, and an optically anisotropic body using the polymerizable liquid crystal composition. Background technique [0002] Compounds having polymerizable groups (polymerizable compounds) are used in various optical materials. For example, a polymer having a uniform orientation can be produced by aligning a polymerizable composition containing a polymerizable compound in a liquid crystal state and then polymerizing it. Such polymers can be used in polarizing plates, retardation plates, and the like required for displays. In most cases, in order to meet the required optical characteristics, polymerization speed, solubility, melting point, glass transition temperature, transparency of the polymer, mechanical strength, surface hardness, heat resistance and light resistance, two or more kinds of...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More