Liquid crystal sealant and liquid crystal display unit using the liquid crystal sealant
A technology of liquid crystal display unit and liquid crystal sealant, applied in the directions of sealing device, adhesive additive, polymer adhesive additive, etc., can solve the problems of poor sealing display, decrease of liquid crystal resistance value, and unrealized liquid crystal sealant, etc. The effect of excellent general characteristics and low liquid crystal contamination
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[0098] Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to an Example. In addition, unless otherwise stated, "part" and "%" herein are mass basis.
Synthetic example 1
[0100] [Component (A-1-1): Synthesis of full acryloyl compound of bisphenol A type epoxy compound]
[0101] 282.5g bisphenol A type epoxy compound (product name: YD-8125, manufactured by Nippon Steel Chemical Co., Ltd.) was dissolved in 266.8g toluene, 0.8g was added therein as dibutyl hydroxytoluene as polymerization inhibitor, and The temperature was raised to 60°C. Then, 117.5 g of 100% equivalent of epoxy group acrylic acid was added, the temperature was further raised to 80° C., 0.6 g of trimethylammonium chloride was added as a reaction catalyst, and stirred at 98° C. for about 30 hours to obtain a reaction liquid. This reaction liquid was washed with water, and toluene was distilled off to obtain 395 g of an acrylated product of the bisphenol A type epoxy compound which was the target.
Synthetic example 2
[0103] [Component (A-1-2): Synthesis of partial acryloyl compound of bisphenol A type epoxy compound]
[0104] 836 g of bisphenol A epoxy resin (RE-310S manufactured by Nippon Kayaku Co., Ltd.) was dissolved in 1000 g of toluene, 3 g of dibutylhydroxytoluene was added as a polymerization inhibitor, and the temperature was raised to 60°C. Then, 165 g of acrylic acid (manufactured by Nippon Shokubai Co., Ltd.) and 5 g of a 40% aqueous solution of tripropylammonium hydroxide as a reaction catalyst were added with 50% equivalents of epoxy groups, and stirred at 98° C. for about 10 hours to obtain The reaction solution. This reaction liquid was washed with water, and toluene was distilled off to obtain 995 g of the target partially acrylated bisphenol A epoxy resin.
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