Polarizer and va-type liquid crystal display device
A polarizer, curing technology, used in polarizing elements, instruments, optical elements, etc., to achieve the effect of firm bonding
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Synthetic example
[0256] (Synthesis example: a synthesis example of sugar ester having a structure represented by general formula (4))
[0257] An example of synthesis of sugar esters applicable to the present invention is shown below.
[0258] [chemical formula 27]
[0259]
[0260] 34.2g (0.1 mole) of sucrose, 180.8g (0.8 mole) of benzoic anhydride, and 379.7g (4.8 mole) of pyridine were respectively charged in a four-necked flask equipped with a stirring device, a reflux condenser, a thermometer and a nitrogen inlet pipe, and stirred Next, the temperature was raised while blowing nitrogen gas from the nitrogen gas introduction tube, and esterification reaction was performed at 70° C. for 5 hours. Next, reduce the pressure in the flask to 4×10 2 Below Pa, after distilling off excess pyridine at 60°C, decompress the inside of the flask to below 1.3×10Pa, raise the temperature to 120°C, and distill off benzoic anhydride and most of the generated benzoic acid. Next, 1 L of toluene and 300 ...
Embodiment 1
[0459]
[0460]
[0461] Particles (Aerosil R972V manufactured by Aerosil Japan Co., Ltd.) 11 parts by mass
[0462] 89 parts by mass of ethanol
[0463] The above ingredients were stirred and mixed for 50 minutes with a dissolver, and then dispersed with a MANTON GAULIN homogenizer to prepare fine particle dispersion 1.
[0464]
[0465] The fine particle dispersion 1 prepared above was slowly added to the dissolving tank filled with dichloromethane while fully stirring. In addition, dispersion is performed using an attritor so that the particle size of the secondary particles becomes a predetermined size. This was filtered through Fine Met NF manufactured by Nippon Seisen Co., Ltd. to prepare fine particle addition solution 1.
[0466] Composition of microparticle additive solution 1
[0467] Dichloromethane 99 parts by mass
[0468] Particle dispersion 15 parts by mass
[0469] A master cement of the following composition was prepared. First, add dichloromethane...
Embodiment 2
[0503]
[0504] A polyvinyl alcohol film having a thickness of 120 μm was uniaxially stretched (at a temperature of 110° C., at a stretching ratio of 5 times).
[0505] After immersing for 60 seconds in an aqueous solution consisting of 0.075 g of iodine, 5 g of potassium iodide, and 100 g of water, it was then immersed in a 68° C. aqueous solution of 3 g of potassium iodide, 7.5 g of boric acid, and 100 g of water. This was washed with water and dried to obtain a polarizer.
[0506] (Preparation of Acrylic Curable Adhesive Composition)
[0507]The following ingredients were mixed and stirred at 50° C. for 1 hour to obtain an acrylic curable adhesive composition: 53.5% by mass of HEAA (hydroxyethylacrylamide, manufactured by Xingren Co., Ltd.) as a radical polymerizable compound, ARONIX M -220 (tripropylene glycol diacrylate, manufactured by Toagosei Co., Ltd.) 14.6% by mass, ACMO (acryloylmorpholine, manufactured by Kohin Corporation) 29.2% by mass, KAYACURE DETX-S (diethy...
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