Adhesive tape
AssigneeSekisui Chemical Co., Ltd.
InventorsNagisa TSUJI, Yudai OGATA
Life of this patent
Estimating the term…
Abstract
The present invention aims to provide an adhesive tape having excellent adhesion and exhibiting excellent holding power even under prolonged shear stress at high temperature. Provided is an adhesive tape including an adhesive layer, the adhesive layer containing an acrylic copolymer containing a structural unit derived from an alkyl (meth)acrylate and a structural unit derived from an olefin polymer having a polymerizable unsaturated double bond at an end, the adhesive layer having a swelling ratio of 40 or greater and 500 or less when immersed in tetrahydrofuran at a temperature of 25° C. for 24 hours.
Claims16
An adhesive tape comprising an adhesive layer,
- the adhesive layer containing an acrylic copolymer containing a structural unit derived from an alkyl (meth)acrylate and a structural unit derived from an olefin polymer having a polymerizable unsaturated double bond at an end,
- the adhesive layer having a swelling ratio of 40 or greater and 500 or less when immersed in tetrahydrofuran at a temperature of 25° C. for 24 hours.
An adhesive tape comprising an adhesive layer,
- the adhesive layer containing an acrylic copolymer containing a structural unit derived from butyl acrylate and a structural unit derived from an olefin polymer having a polymerizable unsaturated double bond at an end,
- the adhesive layer containing an isocyanate crosslinking agent.
Dependencies are inferred from the claim text.