Adhesive material resin composition for optics, adhesive material sheet for optics, image display device, method for manufacturing optical adhesive material sheet, and method for manufacturing image display device
A technology of image display device and resin composition, which is applied in the direction of bonding method, non-polymer organic compound adhesive, optics, etc., can solve the problems of PDP weight increase, etc., and achieve improved adhesion and retention, and skin irritation The effect of low reliability and high reliability
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[0156] The present invention will be described in detail below through examples, but the scope of the present invention is not limited by these examples. In addition, the measurement of the weight average molecular weight was carried out using the gel permeation chromatography using tetrahydrofuran (THF) as a solvent, and it determined using the following apparatus and measurement conditions, and using the standard polystyrene calibration curve conversion. value.
[0157] Determination of weight average molecular weight
[0158] GPC device: Made by Tosoh (High-speed GPC device HCL-8320GPC)
[0159] Solvent used: THF
[0160] Column: manufactured by Tosoh (column TSKge Super Multipore HZ-H)
[0161] Column temperature: 40°C
[0162] Flow: 0.35ml / min
[0163]
[0164] Each adhesive material sheet for optics obtained in Examples 1-5 and Comparative Examples 1 and 2 was evaluated by the following test method.
[0165] 1. Height difference followability
[0166] Paste Kapu...
manufacture example 1(
[0177] Manufacturing example 1 (preparation of acrylate polymer)
[0178] In a reaction vessel equipped with a cooling tube, a thermometer, a stirring device, a dropping funnel, and a nitrogen injection tube, weigh 35.0 g of 2-ethylhexyl acrylate, 15.0 g of 2-hydroxyethyl acrylate and 2 - 50.0 g of butanone was heated from room temperature to 75° C. over 15 minutes while replacing nitrogen with an air volume of 100 ml / min. Thereafter, while maintaining the temperature at 75°C, 35.0 g of 2-ethylhexyl acrylate, 15.0 g of 2-hydroxyethyl acrylate, and 30.0 g of 2-butanone were weighed as additional monomers, and azobis 0.1 g of isobutyronitrile was used to prepare a solution, and this solution was added dropwise over 60 minutes. After the dropwise addition was completed, the reaction was further performed for 7 hours. The weight average molecular weight of the obtained copolymer was 510,000.
manufacture example 2(
[0179] Manufacturing example 2 (preparation of acrylate polymer)
[0180] An acrylate polymer was synthesized in the same manner as in Production Example 1 except that the quantity of azobisisobutyronitrile in Production Example 1 was 0.01 g. The weight average molecular weight of the obtained copolymer was 690,000.
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