Multilayer adhesive tape
AssigneeKoza Novel Materials Korea Co., Ltd.
InventorsSle Lee, Ho Kyung Song, Jae Sung Hong, Jun Man Choi, Jang Soon Kim
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Abstract
A multilayer adhesive tape is provided, including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially. At least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.
Claims15
A multilayer adhesive tape sequentially comprising:
- a first outer adhesive layer;
- a second outer adhesive layer;
- an intermediate adhesive layer;
- a first interface mixed layer provided between the first outer adhesive layer and the intermediate adhesive layer;
- and
- a second interface mixed layer between the second outer adhesive layer and the intermediate adhesive layer,
- wherein the first interface mixed layer comprises materials from the first outer adhesive layer and the intermediate adhesive layer,
- wherein at least one of the first outer adhesive layer or the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less, wherein the low molecular weight prepolymer includes a polymerized unit of a cycloalkyl group-containing (meth)acrylate monomer and the content of the polymerized unit of the cycloalkyl group-containing (meth)acrylate monomer is 50 parts by weight or more and 90 parts by weight or less with respect to 100 parts by weight of total polymerized units of the low molecular weight prepolymer.
Dependencies are inferred from the claim text.