Optical Filters and Their Applications
An optical filter and wavelength technology, which is applied in the field of optical filters, can solve problems such as difficulty in detecting accurate illuminance or color tone misoperation, insufficient reflow soldering process, and reduced incident volume. It achieves excellent near-infrared cut-off ability and incident Small angle dependence and improved crack resistance
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[0382] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to the said Example at all. In addition, "part" means a "weight part" unless otherwise indicated. In addition, the measurement method of each physical property value and the evaluation method of a physical property are as follows.
[0383]
[0384] The molecular weight of the resin is measured by the following method (a) or (b) in consideration of the solubility of each resin in a solvent and the like.
[0385] (a) Gel Permeation Chromatography (GPC) device (150C type, column: H-type column manufactured by Tosoh Company, developing solvent: o-dichlorobenzene) manufactured by Waters (WATERS) was used, The weight average molecular weight (Mw) and the number average molecular weight (Mn) of standard polystyrene conversion were measured.
[0386] (b) Using a GPC device manufactured by Tosoh Corporation (HLC-8220 type, column: TSKgel α-M, developing solvent: tetrah...
Synthetic example 1
[0398] Add 35.12g (0.253mol) of 2,6-difluorobenzonitrile, 87.60g (0.250mol) of 9,9-bis(4-hydroxyphenyl) fluorene, 41.46g (0.300mol) of potassium carbonate in a 3L four-necked flask. mol), N,N-dimethylacetamide (hereinafter also referred to as "DMAc (Dimethylacetamide)") 443 g, and toluene 111 g. Next, a thermometer, a stirrer, a three-way cock with a nitrogen inlet tube, a water separation (Dean-Stark) tube, and a cooling tube were installed in the four-necked flask. Next, after replacing the inside of the flask with nitrogen, the obtained solution was reacted at 140° C. for 3 hours, and the generated water was removed from the water separation tube as needed. When generation of water was not confirmed, the temperature was gradually raised up to 160° C., and the reaction was carried out at the temperature for 6 hours. After cooling to room temperature (25° C.), generated salts were removed with filter paper, the filtrate was poured into methanol for reprecipitation, and the f...
Synthetic example 2
[0400] The 8-methyl-8-methoxycarbonyltetracyclo[4.4.0.1 represented by the following formula (8) 2,5 .1 7,10 ] 100 parts of dodec-3-ene (hereinafter also referred to as "DNM"), 18 parts of 1-hexene (molecular weight modifier) and 300 parts of toluene (solvent for ring-opening polymerization reaction) were put into a reaction vessel replaced with nitrogen , the solution was heated to 80 °C. Then, 0.2 parts of a toluene solution (0.6 mol / liter) of triethylaluminum and 0.9 parts of a toluene solution (concentration 0.025 mol / liter) of methanol-modified tungsten hexachloride were added to the solution in the reaction vessel as a polymerization catalyst, the solution was heated and stirred at 80° C. for 3 hours to perform ring-opening polymerization to obtain a ring-opened polymer solution. The polymerization conversion rate in the polymerization reaction was 97%.
[0401] [chemical 17]
[0402]
[0403] 1,000 parts of the ring-opened polymer solution thus obtained was put...
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