CPC C09J 133/26 (2013.01) [C09J 7/10 (2018.01); C09J 7/50 (2018.01); C09J 133/064 (2013.01); C09J 133/08 (2013.01); C09J 133/14 (2013.01); C09J 2203/318 (2013.01); C09J 2301/208 (2020.08); C09J 2301/312 (2020.08); C09J 2433/00 (2013.01)] | 10 Claims |
1. A multilayer adhesive tape sequentially comprising:
a first outer adhesive layer;
an intermediate adhesive layer; and
a second outer adhesive layer,
wherein the intermediate adhesive layer comprises an intermediate adhesive polymer comprising: a polymerization unit of an alkyl group-containing (meth)acrylate monomer; a polymerization unit of a carboxyl group-containing monomer; and a polymerization unit of an acrylamide-based monomer,
wherein a glass transition temperature of the intermediate adhesive layer is higher than a glass transition temperature of each of the first and second outer adhesive layers,
wherein a difference in the glass transition temperature between each of the first outer adhesive layer and the second outer adhesive layer and the intermediate adhesive layer is from 5° C. to 25° C., and
wherein the first outer adhesive layer and the second outer adhesive layer each comprise an outer adhesive polymer comprising: a polymerization unit of a heterocycloalkyl group-containing (meth)acrylate monomer selected from the group consisting of tetrahydrofurfuryl acrylate (THFA), tetrahydrofurfuryl methacrylate, tetrahydropyranyl acrylate (THPA), or cyclictrimethylol-propaneformalacrylate (CTFA), and a polymerization unit of a crosslinkable monomer.
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