公开(公告)号：EP4011614A1

公开(公告)日：2022-06-15

申请号：EP20849416.1

申请日：2020-07-28

Applicant: Nitto Denko Corporation

Inventor： NAKAO Kota ,  SOEJIMA Kazuki

IPC: B32B27/00 ,  C09J11/08 ,  C09J201/00 ,  C09J7/38

Abstract: A pressure-sensitive adhesive tape of the present invention includes thermally expandable microspheres, wherein the thermally expandable microspheres are each formed of a shell and a volatile substance contained in the shell, and wherein the shell is formed of a resin having a glass transition temperature (Tg) of 120°C or more. In one embodiment, the resin for forming the shell contains a constituent unit having a carboxyl group.

公开(公告)号：EP4011616A1

公开(公告)日：2022-06-15

申请号：EP20850554.5

申请日：2020-07-28

Applicant: Nitto Denko Corporation

Inventor： SOEJIMA Kazuki ,  NAKAO Kota

IPC: B32B27/00 ,  C09J11/08 ,  C09J201/00 ,  C09J7/38

Abstract: The present invention provides a pressure-sensitive adhesive tape, including: a base material; and a pressure-sensitive adhesive layer arranged on at least one side of the base material, wherein the pressure-sensitive adhesive layer contains thermally expandable microspheres and a pressure-sensitive adhesive, wherein the thermally expandable microspheres are each formed of a shell and a volatile substance contained inside the shell, and wherein a resin forming the shell contains a constituent unit having a carboxyl group. In one embodiment, the resin forming the shell has a glass transition temperature (Tg) of 120°C or more.