Composition for transparent adhesive/pressure-sensitive adhesive sheet, process for producing same, and transparent adhesive/pressure-sensitive adhesive sheet
A technology of adhesive sheet and composition, which is applied in the field of transparent adhesive adhesive sheet and composition for transparent adhesive adhesive sheet, which can solve the problems of water-absorbing acid corrosion, inaccessibility, safety and unpreferability, etc., and achieve adhesion The effect of good force and high shear stress
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[0112] A crosslinking agent and a photopolymerization initiator were mixed with the compositions shown in Table 2, and the solid content concentration was adjusted with n-propyl acetate to obtain an adhesive composition solution (solid content concentration: 50% by mass). The obtained adhesive composition solution was mixed using a disperser to prepare a composition solution for a transparent adhesive sheet. This solution was cast-coated on one side of a polyethylene terephthalate (PET) film with a thickness of 50 μm so that the thickness after drying was 50 μm (coating layer thickness: 100 μm), and heated at 50° C. After drying for 5 minutes and heating and drying at 110° C. for 3 minutes, the release-treated side of the release film of a 50-μm-thick PET film on one side was covered with the adhesive side. Then, aging was performed at 40° C. for 72 hours to prepare a transparent pressure-sensitive adhesive sheet (PET base type).
[0113] (Acid Value of Composition for Transp...
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