公开(公告)号：US11926771B2

公开(公告)日：2024-03-12

申请号：US17070257

申请日：2020-10-14

Applicant: NITTO DENKO CORPORATION

Inventor： Takuya Fujita ,  Hiromichi Sumida ,  Masahito Niwa ,  Masataka Nishiwaki ,  Yasushi Buzojima

IPC: C09J7/25 ,  C09J7/38

CPC classification number: C09J7/385 ,  C09J7/25 ,  C09J2301/124 ,  C09J2433/00 ,  C09J2475/006

Abstract: A double-sided pressure-sensitive adhesive tape having excellent impact resistance, excellent reworkability, and excellent alcohol resistance. The double-sided pressure-sensitive adhesive tape includes: a base material layer; and pressure-sensitive adhesive layers arranged on both surface sides of the base material layer, wherein the pressure-sensitive adhesive layers are each formed from a pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive composition contains at least one kind selected from the group consisting of a monomer component (m) and a polymer component (P) obtained by polymerizing the monomer component (m), wherein the monomer component (m) contains 50 wt % or more of butyl (meth)acrylate, wherein a ratio of a thickness of the base material layer to a total thickness of the double-sided pressure-sensitive adhesive tape is less than 35%, and wherein the double-sided pressure-sensitive adhesive tape has a force, which is generated at 100% strain at 23° C. and 50% RH, of from 30 N/m to 150 N/m.

公开(公告)号：US20200254734A1

公开(公告)日：2020-08-13

申请号：US16733294

申请日：2020-01-03

Applicant: Nitto Denko Corporation

Inventor： Takuya Fujita ,  Naohiro Kato ,  Masahito Niwa ,  Yasushi Buzojima

IPC: B32B27/06

Abstract: Provided is a double-sided pressure-sensitive adhesive tape that can express excellent impact resistance. The double-sided pressure-sensitive adhesive tape of the present invention includes a pressure-sensitive adhesive layer laminate obtained by laminating “n” or more pressure-sensitive adhesive layers, wherein “n” represents an integer of 2 or more, wherein each of the pressure-sensitive adhesive layers is formed from a pressure-sensitive adhesive composition, and wherein the pressure-sensitive adhesive composition contains a low-polarity filler.

公开(公告)号：US11891551B2

公开(公告)日：2024-02-06

申请号：US17070257

申请日：2020-10-14

Applicant: NITTO DENKO CORPORATION

Inventor： Takuya Fujita ,  Hiromichi Sumida ,  Masahito Niwa ,  Masataka Nishiwaki ,  Yasushi Buzojima

IPC: C09J7/25 ,  C09J7/38

CPC classification number: C09J7/385 ,  C09J7/25 ,  C09J2301/124 ,  C09J2433/00 ,  C09J2475/006

Abstract: A double-sided pressure-sensitive adhesive tape having excellent impact resistance, excellent reworkability, and excellent alcohol resistance. The double-sided pressure-sensitive adhesive tape includes: a base material layer; and pressure-sensitive adhesive layers arranged on both surface sides of the base material layer, wherein the pressure-sensitive adhesive layers are each formed from a pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive composition contains at least one kind selected from the group consisting of a monomer component (m) and a polymer component (P) obtained by polymerizing the monomer component (m), wherein the monomer component (m) contains 50 wt % or more of butyl (meth)acrylate, wherein a ratio of a thickness of the base material layer to a total thickness of the double-sided pressure-sensitive adhesive tape is less than 35%, and wherein the double-sided pressure-sensitive adhesive tape has a force, which is generated at 100% strain at 23° C. and 50% RH, of from 30 N/m to 150 N/m.