Curable resin composition for photo spacer, column spacer and liquid crystal display
A curable resin and photosensitive spacer technology, which is applied in the field of curable resin composition and column spacer, can solve the problems of lack of elastic recovery force, inability to maintain the distance between substrates, and insufficient recovery, etc., and achieve good substrate adhesion Effect
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[0132] [Example 1-1]
[0133] 35 parts of benzyl maleimide (BzMI), 114 parts of acrylic acid (AA), 42 parts of acryloylmorpholine (ACMO; manufactured by Xingren), ethoxylated o-phenylphenol acrylate (trade name "A -LEN-10"; manufactured by Shinnakamura Chemical Co., Ltd.) 42 parts, tert-butyl peroxy-2-ethylhexanoate ("パ一グチル (registered trademark) O", manufactured by NOF Corporation; (PBO)) 4.7 parts , 56 parts of propylene glycol methyl ether acetate (PGMEA) and 84 parts of propylene glycol monomethyl ether (PGME) are thoroughly stirred and mixed into the monomer dropping tank. In addition, 2.8 parts of n-dodecyl mercaptan (n-DM), 12 parts of two-terminal mercapto-modified polysiloxane (trade name "X-22-167B"; manufactured by Shin-Etsu Silico), 19 parts of PGMEA And 29 parts of PGME fully stirred and mixed the mixture into the chain transfer agent dropping tank.
[0134] A separable flask with a cooling tube was prepared as a reaction tank, and 142 parts of PGMEA and 214 parts of...
Example Embodiment
[0136] [Example 1-2]
[0137] [Synthesis of monomer]
[0138] In a container equipped with a stirring device, a thermometer, a reflux cooler, a nitrogen introduction tube, and a dropping funnel, 200 parts of tetrahydrofuran as a solvent, 106 parts of p-hydroxybiphenyl, and 1 part of dibutyltin dilaurate as a catalyst are added as 0.1 part of 2,6-dibutyl-4-methylphenol as a polymerization inhibitor, while blowing in a nitrogen / oxygen mixed gas (oxygen concentration of 7 vol%), it takes 1 hour to drip from the dropping funnel at 40°C Add 88 parts of 2-isocyanate ethyl acrylate (trade name "Karensun AOI (registered trademark)", manufactured by Showa Denko Corporation), and then react at 60°C for 2 hours. Then, the compound (A), which was synthesized as the biphenyl-containing monomer, was precipitated by using the weak solvent n-hexane to obtain the compound (A).
[0139] [Synthesis of Polymers]
[0140] The mixture of 35 parts of BzMI, 114 parts of AA, 84 parts of the above-mentioned ...
Example Embodiment
[0143] [Example 1-3]
[0144] Put 38 parts of BzMI, 124 parts of AA, 91 parts of A-LEN-10, 5.1 parts of PBO, 106 parts of PGMEA, and 46 parts of PGME into the monomer dropping tank. In addition, a mixture obtained by sufficiently stirring and mixing 3.8 parts of n-DM, 47 parts of PGMEA, and 20 parts of PGME was put into the chain transfer agent dropping tank.
[0145] A separable flask with a cooling tube was prepared as a reaction tank, and 414 parts of PGMEA and 177 parts of PGME were added to the reaction tank. After nitrogen replacement, the temperature of the reaction tank was raised to 90°C by heating in an oil bath with stirring. After the temperature of the reaction tank stabilized at 90°C, each component was dropped from the monomer dropping tank and the chain transfer agent dropping tank. While maintaining the internal temperature of the flask at 90°C, each dripping took 180 minutes. After the dropping was completed, the temperature was maintained at 90°C for 30 minutes...
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