Active energy ray curable composition for interlayer filling
A curable composition and active energy ray technology, applied in the direction of layered products, chemical instruments and methods, synthetic resin layered products, etc., can solve large-scale manufacturing with high viscosity, insufficient interlayer fillers, and cured coating films Problems such as shape change, to achieve the effect of preventing light scattering, not easy to change hue and shape, and high transparency
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[0124] Hereinafter, the present invention will be described in more detail based on examples, but the present invention is by no means limited by these examples.
[0125]
[0126] The measurement methods, test methods, and evaluation methods of physical properties are shown below.
[0127] (weight average molecular weight)
[0128] The weight-average molecular weight was determined on the basis of standard polystyrene by the GPC (gel permeation gas chromatography) method under the following measurement conditions.
[0129] Equipment used: TOSO HLC-8220GPC
[0130] Pump: DP-8020
[0131] Detector: RI-8020
[0132] Column type: Super HZM-M, Super HZ4000, Super HZ3000, Super HZ2000
[0133] Solvent: tetrahydrofuran
[0134] Phase flow: 1mL / min
[0135] Column pressure: 5.0MPa
[0136] Column temperature: 40°C
[0137] Sample injection volume: 10μL
[0138] Sample concentration: 0.2mg / mL
[0139] (Appearance test of resin composition before curing)
[0140] The appear...
Synthetic example
[0173] Next, synthesis examples and examples of urethane (meth)acrylate will be described.
[0174] (Determination of isocyanate group concentration)
[0175] The isocyanate group concentration is determined as follows. It should be noted that the measurement was performed in a 100 mL glass flask under stirring with a stirrer.
[0176] (determination of blank value)
[0177] Add 15mL of dibutylamine in THF (0.1N) to 15mL of THF, then add 3 drops of bromophenol blue (1% methanol diluent) to make the color blue, then use an aqueous solution of HCl with an equivalent concentration of 0.1N Titration was performed. Let the titration amount of the aqueous HCl solution at the time when discoloration is observed be V b (mL).
[0178] (Measurement of measured isocyanate group concentration)
[0179] Weigh the sample W s (g) was dissolved in 15 mL of THF, and 15 mL of a THF solution (0.1 N) of dibutylamine was added. After confirming the solubilization, 3 drops of bromophenol bl...
Synthetic example 10
[0246] The molar ratio of GI-3000, IPDI, and HEA was changed to 3:4:1.82, and 0.2 molar parts of 2-ethylhexanol (2-EH) was also used. The molar ratio of HEA and 2-EH is 90:10. The actual charging amount and reaction conditions are described below.
[0247] A separable flask equipped with a thermometer and a stirring device was filled with 273 g of GI-3000 (manufactured by Nippon Soda Co., Ltd.), 800 ppm of dibutylhydroxytoluene (BHT), 75 g of octyl / decyl acrylate (ODA-N) (di Tens of weight %). After making internal temperature 50 degreeC and stirring for 1 hour, the inside of the system was made to homogenize, and then 21 g of isophorone diisocyanates were injected|thrown-in. After stirring at the reaction temperature for 1 hour, 300 ppm of dibutyltin dilaurate was added, followed by further stirring at 50° C. for 3 hours.
[0248] After confirming that the isocyanate group concentration in the reaction liquid is not more than the theoretical end point isocyanate group conc...
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