Adhesive composition, adhesive film and surface protection film
A technology of adhesive and composition, applied in the field of surface protective film, can solve the problems such as the inability to meet the performance requirements of the surface protective film, and achieve the effect of preventing the residual phenomenon of the adhesive and excellent antistatic performance
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Embodiment 1
[0100] Nitrogen gas was introduced into a reaction apparatus equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen introduction pipe, thereby replacing the air in the reaction apparatus with nitrogen. Then, added 2-ethylhexyl acrylate of 90 parts by weight, 8-hydroxyoctyl acrylate of 8.5 parts by weight, the acrylic acid of 1.0 parts by weight in the reaction device, and added the solvent (ethyl acetate) of 60 parts by weight simultaneously . Then, 0.1 parts by weight of azobisisobutyronitrile as a polymerization initiator was dropped over 2 hours, and reacted at 65° C. for 6 hours to obtain acrylic acid used in Example 1 with a weight average molecular weight of 500,000. Polymer-like solution 1. A part of the acrylic polymer was taken and used as a sample for acid value measurement described later.
Embodiment 2~6 and comparative example 1~3
[0102] Except that the composition of each monomer was adjusted as described in (A) to (C) in Table 1, the above-mentioned acrylic polymer solution 1 used in Example 1 was operated in the same manner to obtain the Acrylic polymer solutions in Examples 2-6 and Comparative Examples 1-3.
[0103] In addition, in Table 1 and Table 2, (A) is an alkyl (meth)acrylate as the main component, (B) is a copolymerizable monomer containing a hydroxyl group, and (C) is a copolymerizable monomer containing a carboxyl group. monomer.
[0104] Table 1
[0105]
[0106]
[0107] [Example 1]
[0108] To the acrylic polymer solution 1 of Example 1 manufactured as described above, 2.0 parts by weight of 1-octylpyridinium dodecylbenzenesulfonate, 0.1 part by weight of polyether-modified silicone with an HLB of 7 were added. Alkane compound (the weight average molecular weight Mw is 10000) was stirred, and 1.0 parts by weight of Coronate HX (Coronate HX) (isocyanurate of hexamethylene diisocy...
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