US 12,247,146 B2
Adhesive tape and method of producing the same, and article using the adhesive tape and method of disassembling the same
Hiromasa Kikuchi, Saitama (JP); Hideaki Takei, Saitama (JP); Takeshi Iwasaki, Saitama (JP); and Yusuke Takahasi, Tokyo (JP)
Assigned to DIC Corporation, Tokyo (JP)
Filed by DIC Corporation, Tokyo (JP)
Filed on Sep. 30, 2022, as Appl. No. 17/957,202.
Claims priority of application No. 2021-164025 (JP), filed on Oct. 5, 2021.
Prior Publication US 2023/0105502 A1, Apr. 6, 2023
Int. Cl. C09J 7/26 (2018.01); C09J 175/04 (2006.01)
CPC C09J 7/26 (2018.01) [C09J 175/04 (2013.01); C09J 2301/124 (2020.08); C09J 2301/312 (2020.08); C09J 2301/502 (2020.08); C09J 2400/243 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A double-sided adhesive tape comprising:
a foam base;
a resin layer (A1) disposed in direct contact with one surface of the foam base, and an adhesive layer (B1) disposed on the resin layer (A1) on a side opposite to the foam base; and
a resin layer (A2) disposed in direct contact with another surface of the foam base, and an adhesive layer (B2) disposed on the resin layer (A2) on a side opposite to the foam base,
wherein:
the resin layer (A1) and the resin layer (A2) are each formed of a crosslinked product of a composition containing a resin having a hydroxy group and a compound reacting with the hydroxy group,
a tensile modulus of each of the resin layer (A1) and the resin layer (A2) is 50 MPa or more and 1000 MPa or less, and
a hydroxy group value of the resin having the hydroxy group is 1 mg KOH/g or more and 30 mg KOH/g or less.