Adhesive composition, adhesive layer for transparent conductive layer, laminate, and image display device
A technology of transparent conductive layer and adhesive layer, which is applied in the direction of non-polymer adhesive additives, adhesive types, adhesive additives, etc., to achieve the effects of inhibiting corrosion, inhibiting the increase of surface resistance, and inhibiting the increase of surface resistance value Effect
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manufacture example 1
[0154] Production example 1 (production of base film (1))
[0155] A laminated body having a polyvinyl alcohol (PVA) layer with a thickness of 9 μm formed on an amorphous polyethylene terephthalate (PET) substrate is subjected to auxiliary stretching in the air at a stretching temperature of 130°C, thereby producing Stretch the laminate. Next, the stretched laminate is dyed to produce a colored laminate. Furthermore, the colored laminate was stretched together with the amorphous PET substrate in a boric acid aqueous solution at a temperature of 65° C. to a total draw ratio of 5.94 times, thereby producing an optical film laminate including a 4 μm thick PVA layer. Through such two-stage stretching, the PVA molecules of the PVA layer formed on the amorphous PET substrate are in a high-order orientation, and the iodine adsorbed by dyeing is in a high-order orientation in a single direction in the form of polyiodide ion complexes. order orientation, it can be used as a high-perf...
manufacture example 2
[0156] Production example 2 (production of base film (2))
[0157] A PVA film with a thickness of 80 μm was stretched to 3 times while being dyed in a 0.3% iodine solution at 30° C. for 1 minute between rolls with different speed ratios. Thereafter, stretching was performed while dipping in an aqueous solution containing 4% boric acid and 10% potassium iodide at 60° C. for 0.5 minutes so that the total stretching ratio became 6 times. Next, after washing by immersing for 10 seconds in an aqueous solution containing 1.5% potassium iodide at 30° C., it was dried at 50° C. for 4 minutes to obtain a polarizing plate with a thickness of 20 μm. In addition, while applying a PVA-based adhesive to one surface of the polarizer, a 40-μm-thick acrylic resin film (transparent protective film (1)) after saponification treatment was pasted, and then the other surface of the polarizer was coated with a PVA-based adhesive. A norbornene-based film (transparent protective film (2)) having a th...
manufacture example 3
[0158] Production Example 3 (Preparation of a solution containing an acrylate copolymer (A-1))
[0159] In a reaction vessel equipped with a condenser tube, a nitrogen introduction tube, a thermometer and a stirring device, add 95 parts of butyl acrylate, 1 part of 4-hydroxybutyl acrylate, 4 parts of acrylic acid and relative to the monomer (solid content) together with ethyl acetate. ) 100 parts of 2,2'- azobisisobutyronitrile (AIBN) as an initiator was reacted at 60° C. for 7 hours under a nitrogen stream. Then, ethyl acetate was added to this reaction liquid, and the solution (30 weight% of solid content density|concentration) containing the acrylate copolymer (A-1) of 2 million weight average molecular weights was obtained.
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