Adhesive agent composition, adhesive sheet, and electronic device
A composition and adhesive technology, applied in the directions of adhesives, adhesive types, carboxyl rubber adhesives, etc., can solve the luminous properties such as reduced moisture resistance, insufficient moisture resistance, luminous brightness, luminous efficiency, and uniformity of luminescence Easy to reduce and other problems, to achieve the effect of excellent balance and excellent moisture resistance
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Examples
Embodiment 1
[0243] (Preparation of Adhesive Composition)
[0244] 5 parts of diene rubber (A1), 100 parts of rubber polymer (1), and 2 parts of crosslinking agent (B1) were dissolved in toluene to prepare an adhesive composition (1) having a solid content concentration of 25%.
[0245] (Manufacture of adhesive sheet 1)
[0246] The adhesive composition (1) was coated on the substrate sheet (1) so that the thickness after drying was 20 μm, and the obtained coating film was dried at 110° C. for 1 minute to form an adhesive layer. Next, the peeling sheet (1) was bonded to the adhesive layer on the peeling-treated surface to obtain an adhesive sheet (1A).
[0247] (Manufacture of adhesive sheet 2)
[0248] The adhesive composition (1) was coated on the release-treated surface of the release sheet (2) so that the thickness after drying was 60 μm, and the obtained coating film was dried at 110° C. for 1 minute to form an adhesive layer. Next, the peeling sheet (1) was bonded to the adhesive...
Embodiment 2～13、 comparative example 1、2
[0256] Adhesive compositions (2) to (15) were obtained in the same manner as in Example 1, except that the components and their compounding amounts were changed to those described in Table 1 or Table 2, and adhesive sheets were obtained using them. (2A) to (15A), adhesive sheet (2B) to (15B), organic EL element (2) to (15).
Embodiment 14～26
[0262] Adhesive compositions (17) to (29) were obtained in the same manner as in Example 1, except that the components and their compounding amounts were changed to those described in Table 3, and an adhesive sheet (17A) was obtained using them. ~(29A), adhesive sheet (17B)~(29B), organic EL element (17)~(29).
[0263] The adhesive sheets and organic EL elements obtained in Examples and Comparative Examples were measured and evaluated as follows. The measurement results and evaluation results are shown in Tables 1 to 3.
[0264] 〔Water vapor permeability measurement〕
[0265] The peeling sheets (1) and (2) of the adhesive sheets (1B) to (29B) were peeled off and attached to a polyethylene terephthalate film (manufactured by Mitsubishi Plastics Co., Ltd., thickness 6 μm) to obtain A sample for measuring the water vapor permeability of an adhesive layer (thickness: 60 μm) sandwiched between two polyethylene terephthalate films. Using a water vapor permeability measuring devic...
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