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Photosensitive resin and preparation method thereof, photosensitive resin composition and coloring spacer

A technology of photosensitive resin and composition, which is applied in the field of colored spacers and photosensitive resin compositions, can solve the problems of insufficient flexibility and slow surface photocuring speed, meet the requirements of flexibility, and improve the surface photocuring speed and flexibility. Effect

Active Publication Date: 2020-12-22
CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a photosensitive resin, its preparation method, photosensitive resin composition and colored spacer, to solve the problems of slow photocuring and insufficient flexibility of the spacer surface in the LCD in the prior art

Method used

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  • Photosensitive resin and preparation method thereof, photosensitive resin composition and coloring spacer
  • Photosensitive resin and preparation method thereof, photosensitive resin composition and coloring spacer
  • Photosensitive resin and preparation method thereof, photosensitive resin composition and coloring spacer

Examples

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preparation example Construction

[0028] In order to simplify the preparation method of above-mentioned photosensitive resin further, preferably above-mentioned R 1 , R 2 , R 3 , R 4 Each independently is hydrogen or methyl, preferably the above R 7 for hydrogen, C 1 ~C 6 straight chain alkyl, preferably the weight average molecular weight of the compound is 1500-10000.

[0029] In another typical embodiment of the present invention, a method for preparing any one of the above-mentioned photosensitive resins is provided. The preparation method includes: step S1, making bisphenol fluorene compounds with structural formula A and bisphenol fluorene compounds with structural formula B The halogenated oxetane compound is subjected to an etherification reaction to obtain a first intermediate with a structural formula C; step S2, making the first intermediate and an acrylic compound with a structural formula D in the presence of a first catalyst and a polymerization inhibitor Carrying out a ring-opening reactio...

preparation Embodiment 1

[0082] Put 125g of bisphenol fluorene, 666g of chlorooxetane, and 10g of tetrabutylammonium bromide into a four-necked flask, raise the temperature to 70°C, and drop to 35°C when the content of bisphenol fluorene97% (HPLC), product yield (80%). The reaction process is as follows:

[0083]

[0084] Put 120g of compound 1a, 43.24g of acrylic acid, 0.16g of 2,6-di-tert-butyl-4-methylphenol, 2g of tetrabutylammonium chloride into a four-necked flask, ventilate with air, start stirring, and heat up to 110°C , the crude product of compound 1b was obtained after incubation for 12 h, and the product purity was 85% (HPLC). The reaction process is as follows:

[0085]

[0086] Put 320g of the crude product of compound 1b, 320g of propylene glycol methyl ether acetate and 0.2g of dibutyltin dilaurate into the four-necked flask. After heating up to 60°C, add 197.64g of hexamethylene diisocyanate dropwise into the four-necked flask for 1h After dripping, keep warm for 6 hours, add ...

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Abstract

The invention provides a photosensitive resin and a preparation method thereof, a photosensitive resin composition and a coloring spacer. The photosensitive resin has a structure shown in the specification, wherein R1, R2, R3 and R4 are independently selected from any one of hydrogen, linear alkyl, branched alkyl, alkoxy and aromatic groups; m1, m2, n1 and n2 are each independently selected from any one integer from 1 to 4; R5 is selected from any one of straight-chain alkyl and branched-chain alkyl; R6 is selected from hydrogen or any one of linear alkyl and branched alkyl; R7 is selected from any one of hydrogen and linear alkyl; R8 is any one of a linear alkyl group, an ester group and a branched alkyl group; R9 is selected from any one of straight-chain alkyl and branched-chain alkyl;and R10 is selected from any one of straight-chain unsaturated alkyl, branched-chain unsaturated alkyl and aryl containing unsaturated groups. The problems of low photo-curing speed and insufficient flexibility of the surface of the spacer in the LCD in the prior art are solved.

Description

technical field [0001] The invention relates to the field of photocurable materials, in particular to a photosensitive resin, a preparation method thereof, a photosensitive resin composition and a colored spacer. Background technique [0002] Liquid crystal display (LCD) is a flat and ultra-thin display device, which consists of a certain number of color or black and white pixels, placed in front of a light source or a reflective surface. The spacer is a component used in liquid crystal display (LCD) to keep the liquid crystal layer between two substrates uniform and keep the distance constant. Spacers are generally divided into non-shielding spacers and light-shielding spacers. Non-shielding spacers will cause backlight to pass through, which may cause misoperation of switching elements in the LCD. At present, light-shielding spacers need to add colorants containing pigments. Generally, the light-shielding performance is improved by increasing the amount of colorants added...

Claims

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Application Information

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IPC IPC(8): G03F7/027G03F7/004G02F1/1339
CPCG03F7/027G03F7/004G02F1/1339
Inventor 钱晓春马培培于培培葛庆余黄智
Owner CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS