Adhesive, bonded body and method for producing bonded body
An adhesive and bonding technology, applied in the direction of bonding methods, adhesives, adhesive types, etc., can solve the problems of difficult evaporation of adhesive moisture, time required for curing, low bonding strength, etc., to achieve bonding strength Excellent, excellent curing speed, high bonding strength effect
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Embodiment 1
[0371]
[0372] 14 parts by mass of the above-mentioned (meth)acrylic polymer (P-1), 43 parts by mass of (M-1) as the compound (Y), and 33 parts by mass of (M-2) were put into a container that can be sealed and equipped with a stirring device. parts by mass and 5 parts by mass of (L-1), 3 parts by mass of (R-1) as a radical polymerization initiator (R), and 2 parts by mass of (C-1) as a cationic polymerization initiator (C), and stirred for 24 hours to prepare the adhesive (A-1).
[0373]
[0374] A polymethyl methacrylate film (manufactured by Kuraray Co., Ltd.) with a thickness of 50 μm was used as the substrate, and the above-mentioned adhesive was applied to one surface of the polymethyl methacrylate film to a thickness of 2 μm using a bar coater. agent (A-1). Next, a polarizing film (manufactured by dyeing and stretching a PVA film with an iodine-based dye) with a thickness of 10 μm was laminated on the base material through the adhesive. Thereafter, the above-menti...
Embodiment 2~6
[0386] [Examples 2 to 6 and Comparative Examples 1 to 4]
[0387] Except for using the types and amounts of the compounds shown in the following Table 1, the same operations as in Example 1 were performed to prepare adhesives (A-2)~(A-6) and (CA-1)~(CA- 4). In the adhesive (A-6), an acrylic resin acrylate (“KRAD-3611” manufactured by Negami Industry Co., Ltd.) (P-2) was used instead of the (meth)acrylic polymer (P-1). In addition, in adhesives (CA-1) and (CA-2), polyether-based urethane acrylate ("Upimar AU-2300" manufactured by Mitsubishi Chemical Corporation) (P-3) was used instead of ( Meth)acrylic polymer (P-1). It should be noted that "-" in Table 1 indicates that the compound was not used.
[0388] In addition, it carried out similarly to Example 1 except having used adhesive agent (A-2)-(A-6) and (CA-1)-(CA-4) instead of adhesive agent (A-1) respectively The bonded body (polarizing plate) was produced, and the same evaluations as in Example 1 were performed. These ...
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