公开(公告)号：US20190106608A1

公开(公告)日：2019-04-11

申请号：US16152776

申请日：2018-10-05

Applicant: NITTO DENKO CORPORATION

Inventor： Kenta JOZUKA ,  Naoaki HIGUCHI ,  Kenji FURUTA ,  Naohiro KATO ,  Yasushi BUZOJIMA

IPC: C09J133/08 ,  C09J7/38 ,  C08F220/18

Abstract: The present invention provides an acrylic PSA composition. The acrylic PSA composition comprises an acrylic polymer as its base polymer and at least one species selected among tackifier resins and (meth)acrylic oligomers. The acrylic polymer has a weight average molecular weight higher than 70×104. The acrylic polymer has a dispersity (Mw/Mn) below 15.

公开(公告)号：US20160024352A1

公开(公告)日：2016-01-28

申请号：US14806188

申请日：2015-07-22

Applicant: NITTO DENKO CORPORATION

Inventor： Kenta JOZUKA ,  Naoki NAKAYAMA ,  Yoshimasa NISHIDA ,  Yoshikazu SOEDA

IPC: C09J7/02

CPC classification number: C09J7/0217 ,  C09J7/22 ,  C09J7/30 ,  C09J2201/128 ,  C09J2201/618 ,  C09J2203/318 ,  H01M2/1016

Abstract: This invention provides a PSA sheet that allows prevention or reduction of damage such as fracture with efficient stretch removability. A stretchable PSA sheet is provided, comprising a PSA layer and a film-like substrate supporting the PSA layer. The PSA sheet has a long section. The long section has a tapered segment that extends, tapering to a first end of the length direction and the film-like substrate has a minimum cross-sectional area larger than 0.30 mm2 in the tapered segment.

Abstract translation: 本发明提供一种能够有效地进行拉伸除去性的防止或减少断裂等损伤的粘合片。 提供了一种可拉伸的粘合片，其包括粘合剂层和支撑PSA层的膜状基材。 粘合片具有较长的截面。 长截面具有锥形段，该锥形段沿长度方向的第一端延伸，并且膜状衬底在锥形段中具有大于0.30mm 2的最小横截面面积。