公开(公告)号：US20160002505A1

公开(公告)日：2016-01-07

申请号：US14771524

申请日：2014-03-12

Applicant: NITTO DENKO CORPORATION

Inventor： Masaki MIZUTANI ,  Yuki HASEGAWA ,  Yusuke MOTEGI ,  Shou TAKARADA ,  Shinya YAMAMOTO ,  Takami HIKITA

IPC: C09J133/14 ,  G06F3/041 ,  C09J165/00

CPC classification number: C09J133/14 ,  C08F220/18 ,  C09J7/385 ,  C09J133/08 ,  C09J165/00 ,  C09J2203/318 ,  G06F3/0414 ,  C08F2220/1858 ,  C08F226/08 ,  C08F220/14 ,  C08F220/20

Abstract: The pressure sensitive adhesive of the present invention includes an acryl-based base polymer and a hydrogenated terpene phenolic resin having a softening point of 70° C. to 150° C. The hydrogenated terpene phenolic resin preferably has a terpene molar ratio of 0.1 to 0.7. The content of acryl-based base polymer is preferably 45 to 95 parts by weight based on total 100 parts by weight of the pressure sensitive adhesive composition. In addition, total content of the acryl-based base polymer and the hydrogenated terpene phenolic resin is preferably 70 parts by weight or more. The pressure sensitive adhesive of the present invention is hardly clouded even under a high-temperature and high-humidity environment, and has level difference followability, thus can be used by disposing between a front transparent plate and a touch panel, between a front transparent plate and an image display panel or between a touch panel and an image display panel.

Abstract translation: 本发明的压敏粘合剂包括丙烯酸类基础聚合物和软化点为70℃至150℃的氢化萜烯酚醛树脂。氢化萜烯酚醛树脂优选具有0.1至0.7的萜烯摩尔比 。 丙烯酸系基础聚合物的含量相对于100重量份的压敏粘合剂组合物优选为45〜95重量份。 此外，丙烯酸系基础聚合物和氢化萜烯酚醛树脂的总含量优选为70重量份以上。 即使在高温高湿环境下，本发明的压敏粘合剂几乎不会变得混浊，并且具有水平差的追随性，因此可以通过在前透明板和触摸面板之间设置在前透明板 以及图像显示面板或触摸面板与图像显示面板之间。

公开(公告)号：US20150346408A1

公开(公告)日：2015-12-03

申请号：US14646426

申请日：2013-11-14

Applicant: NITTO DENKO CORPORATION

Inventor： Masaki MIZUTANI ,  Yuki HASEGAWA ,  Yusuke MOTEGI ,  Tsuyoshi CHIBA

IPC: G02B5/30 ,  B32B37/12 ,  C09J7/02 ,  B32B37/26 ,  C09J133/08 ,  B32B37/18 ,  B32B38/10

CPC classification number: G02B5/3033 ,  B32B37/003 ,  B32B37/12 ,  B32B37/1284 ,  B32B37/18 ,  B32B37/26 ,  B32B38/10 ,  B32B2037/268 ,  B32B2307/42 ,  B32B2457/20 ,  C08F220/18 ,  C09J7/22 ,  C09J7/30 ,  C09J133/08 ,  C09J2201/128 ,  C09J2203/318 ,  C09J2433/00 ,  C09J2433/003 ,  G02B5/305 ,  G02F2202/28 ,  H01L27/323 ,  H01L51/5281 ,  Y10T428/1462 ,  Y10T428/1476 ,  C08F2220/1825 ,  C08F220/06 ,  C08F220/14 ,  C08F2220/1858 ,  C08F220/20

Abstract: According to the invention, an optical film with adhesive on both sides comprises: an optical film including a polarizing plate; a first pressure sensitive adhesive layer provided on a surface of the optical film at a side configured to be bonded to an image display cell; and a second pressure sensitive adhesive layer provided on a surface of the optical film at a side configured to be bonded to a transparent plate or the touch panel. Further, a protective sheet is releasably attached on each of the first pressure sensitive adhesive layer and the second pressure sensitive adhesive layer. A thickness of the second pressure sensitive adhesive layer is preferably 30 μm or more. In a practical use, the optical film with adhesive on both sides according to the present invention is, for example, disposed between a front transparent plate or a touch panel and an image display cell.

Abstract translation: 根据本发明，两侧具有粘合剂的光学膜包括：包括偏光板的光学膜; 第一压敏粘合剂层，其设置在配置为结合到图像显示单元的一侧的光学膜的表面上; 以及第二压敏粘合剂层，其设置在配置成结合到透明板或触摸面板的一侧的光学膜的表面上。 此外，保护片可释放地附接在第一压敏粘合剂层和第二压敏粘合剂层的每一个上。 第二压敏粘合剂层的厚度优选为30μm以上。 在实际应用中，根据本发明的两侧具有粘合剂的光学膜例如设置在前透明板或触摸面板和图像显示单元之间。