Optical component and optical device equipped with same
A technology for optical components and optical devices, applied in the directions of optical components, optical components, optics, etc., can solve the problems of expensive equipment, difficult coating, increased cost, etc., and achieve excellent heat resistance, excellent light shielding or reflectivity, and simple and convenient and effective production
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preparation example 1
[0194] [Preparation Example 1: Synthesis of (3,4,3',4'-diepoxy)bicyclohexane (a-1)]
[0195] 70 g (0.68 mol) of 95% by weight sulfuric acid and 55 g (0.36 mol) of 1,8-diazabicyclo[5.4.0]undecene-7 (DBU) were stirred and mixed to prepare a dehydration catalyst.
[0196] Add 1000 g (5.05 moles) of hydrogenated biphenol (4,4'-dihydroxybicyclohexyl) to a 3 L flask equipped with a stirrer, a thermometer, and a distillation pipe filled with a dehydrating agent and insulated. 125 g of dehydration catalyst (0.68 mol in terms of sulfuric acid), 1500 g of trimethylene, and heated the flask. Formation of water was confirmed when the internal temperature exceeded 115°C. Furthermore, heating was continued until the temperature reached the boiling point of mesitylene (internal temperature: 162 to 170° C.), and a dehydration reaction was carried out under normal pressure. By-product water is distilled and discharged out of the system through the dehydration pipe. The dehydration catalyst ...
preparation example 2
[0201] [Preparation Example 2: Synthesis of bis(3,4-epoxycyclohexylmethyl) ether (a-2)]
[0202] Add 499 g (12.48 mol) of sodium hydroxide (granular) and 727 mL of toluene to a 5 L reactor, carry out nitrogen replacement, add 420 g (3.74 mol) of tetrahydrobenzyl alcohol in 484 mL of toluene, and mature at 70° C. for 1.5 hours. Next, 419 g (2.20 mol) of tetrahydrobenzyl methanesulfonate was added and aged under reflux for 3 hours, then cooled to room temperature, and 1248 g of water was added to terminate the reaction and liquid-separated.
[0203] The organic layer obtained by liquid separation was concentrated and then distilled under reduced pressure to obtain bis(tetrahydrobenzyl)ether as a colorless transparent liquid (yield: 85%). The obtained di(tetrahydrobenzyl) ether was determined 1 H-NMR spectrum.
[0204] 1 H-NMR (CDCl 3 ): δ1.23-1.33(m, 2H), 1.68-1.94(m, 6H), 2.02-2.15(m, 6H), 3.26-3.34(m, 4H), 5.63-7.70(m, 4H)
[0205] 200 g (0.97 mol) of the obtained bis(tet...
Synthetic example 1～3
[0207] Each component was mixed according to the formulation (unit: part by weight) shown in following Table 1, and the curable composition was obtained. The viscosity of the curable composition obtained in Synthesis Example 1 was 120 mPa·s, the viscosity of the curable composition obtained in Synthesis Example 2 was 145 mPa·s, and the viscosity of the curable composition obtained in Synthesis Example 3 was 583 mPa·s . In addition, the viscosity was measured using the rheometer (trade name "Physica UDS200", manufactured by Anton Paar Co., Ltd.) under conditions of a temperature of 25° C. and a shear rate of 20 (1 / s).
[0208]The obtained curable composition was poured into a silicone mold (bottom), and a spacer was sandwiched so that the thickness became 1.0 mm. The mold was closed with a silicone mold (lid), and UV-LED (365 nm, manufactured by Omron Co., Ltd.) (100 mW x 30 seconds) was irradiated to cure the above-mentioned curable composition, and a total of 36 rectangular ...
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