公开(公告)号：US20170002235A1

公开(公告)日：2017-01-05

申请号：US15266653

申请日：2016-09-15

Applicant: NITTO DENKO CORPORATION

Inventor： Masatsugu HIGASHI ,  Kiyoe SHIGETOMI ,  Koji SHITARA ,  Akiko TANAKA ,  Katsuhiko KAMIYA ,  Azusa ISEKI

IPC: C09J7/02 ,  H01B5/00

CPC classification number: H01B5/002 ,  B32B7/12 ,  B32B27/08 ,  B32B27/306 ,  B32B27/36 ,  B32B2307/202 ,  B32B2307/412 ,  B32B2307/516 ,  B32B2457/00 ,  B32B2457/202 ,  B32B2457/204 ,  C08F220/18 ,  C08F222/1006 ,  C08F226/06 ,  C08G18/6266 ,  C08G18/8029 ,  C08G2170/40 ,  C09J7/385 ,  C09J133/14 ,  C09J175/04 ,  C09J2203/318 ,  C09J2433/00 ,  C09J2467/006 ,  G02F1/13338 ,  G02F2202/28 ,  Y10T428/2891 ,  C08F2220/1875 ,  C08F220/20 ,  C08F2220/1858 ,  C08F226/10

Abstract: A pressure-sensitive adhesive of the invention include a (meth)acryl-based polymer obtained by polymerization of a monomer component including 30 to 99.5% by weight of an alkyl (meth)acrylate having an alkyl group of 10 to 18 carbon atoms at an ester end and 0.5 to 50% by weight of a cyclic nitrogen-containing monomer. The pressure-sensitive adhesive has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant and reliable moisture resistance.

Abstract translation: 本发明的压敏粘合剂包括通过聚合含有30至99.5重量％的具有10至18个碳原子的烷基的（甲基）丙烯酸烷基酯的单体组分而获得的（甲基）丙烯酸类聚合物， 酯末端和0.5〜50重量％的含环状含氮单体。 该粘合剂具有令人满意的粘合性能，可以形成具有较低介电常数和可靠的耐湿性的压敏粘合剂层。

公开(公告)号：US20150197670A1

公开(公告)日：2015-07-16

申请号：US14669035

申请日：2015-03-26

Applicant: NITTO DENKO CORPORATION

Inventor： Koji SHITARA ,  Hiroko IKENAGA ,  Hiroaki KISHIOKA

IPC: C09J7/00

CPC classification number: C09J7/00 ,  C08K5/3492 ,  C09J7/385 ,  C09J133/08 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2205/102 ,  C09J2433/00

Abstract: The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber.

Abstract translation: 本发明即使在使用少量的光学薄膜也不使用光学薄膜的情况下，实现具有优异的触摸面板，显示元件等的紫外线防护性的显示装置或输入装置。 本发明的压敏粘合片的总透光率为85％以上，波长380nm的透光率为5％以下，雾度为3％以下。 粘合片优选包括含有丙烯酸类聚合物和三嗪系紫外线吸收剂的粘合剂层。

公开(公告)号：US20140243472A1

公开(公告)日：2014-08-28

申请号：US14177623

申请日：2014-02-11

Applicant: NITTO DENKO CORPORATION

Inventor： Souya JO ,  Koji SHITARA ,  Noritsugu DAIGAKU ,  Tadatoshi NAKANISHI ,  Shou UCHIDA ,  Shogo SASAKI ,  Ryohei SAWAZAKI

IPC: C09J175/04 ,  C09J133/00

CPC classification number: C09J175/04 ,  C08G18/6696 ,  C08G18/8029 ,  C08G2170/40 ,  C09J133/00 ,  C09J133/14

Abstract: Provided is a surface protective film including, as an outermost layer, a pressure-sensitive adhesive layer containing a urethane-based pressure-sensitive adhesive as a main component, the surface protective film allowing the contamination of an adherend to be extremely suppressed, and being preferably excellent in wettability and reworkability. The surface protective film of the present invention includes, as an outermost layer, a pressure-sensitive adhesive layer containing, as a main component, a urethane-based pressure-sensitive adhesive containing a polyurethane-based resin; and when a pressure-sensitive adhesive layer side of the surface protective film is attached to a glass plate at 50° C. for 10 days and then the surface protective film is peeled from the glass plate, a residual adhesive strength on the peeled surface side of the glass plate is 3.0 N/19 mm or more.

Abstract translation: 提供一种表面保护膜，其包含作为最外层的含有氨基甲酸酯系压敏粘合剂作为主要成分的压敏粘合剂层，能够极大地抑制被粘物的污染的表面保护膜，并且 优选润湿性和再加工性。 本发明的表面保护膜包括作为最外层的含有聚氨酯类树脂的聚氨酯系压敏粘合剂作为主要成分的压敏粘合剂层， 并且当将表面保护膜的压敏粘合剂层侧在50℃下安装在玻璃板上10天，然后将表面保护膜从玻璃板上剥离时，剥离表面侧的残留粘合强度 的玻璃板为3.0N / 19mm以上。

公开(公告)号：US20130085215A1

公开(公告)日：2013-04-04

申请号：US13628897

申请日：2012-09-27

Applicant: Nitto Denko Corporation

Inventor： Koji SHITARA ,  Hiroko IKENAGA ,  Hiroaki KISHIOKA

IPC: C09J133/00 ,  C08K5/3492

CPC classification number: C09J7/00 ,  C08K5/3492 ,  C09J7/385 ,  C09J133/08 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2205/102 ,  C09J2433/00

Abstract: The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber.

公开(公告)号：US20230244020A1

公开(公告)日：2023-08-03

申请号：US17766453

申请日：2020-10-05

Applicant: NITTO DENKO CORPORATION

Inventor： Takanobu YANO ,  Shou TAKARADA ,  Takeshi NAKANO ,  Koji SHITARA ,  Yoshitaka SUGITA ,  Kazutaka MINOURA

IPC: G02B5/30 ,  H10K59/40 ,  G02B1/14 ,  H10K59/80

CPC classification number: G02B5/305 ,  H10K59/40 ,  G02B1/14 ,  G02B5/3083 ,  H10K59/8793 ,  H10K59/873

Abstract: The multilayer structure used to be deformed by bending with a first member outside, includes the first member, a first adhesive layer, a second member having one surface joined to one surface of the first member at least via the first adhesive layer, a second adhesive layer, and a first structure having one surface joined to the other surface of the second member at least via the second adhesive layer. The first structure includes a third member on a surface in contact with the second adhesive layer, including, on a surface in contact with the second adhesive layer, a layer that is likely to be broken when deformed. Hardness of each of the first and second adhesive layer is determined such that when the multilayer structure is deformed, the extension of the layer likely to be broken is reduced to a value lower than the tensile breaking extension thereof.

公开(公告)号：US20130251990A1

公开(公告)日：2013-09-26

申请号：US13847843

申请日：2013-03-20

Applicant: NITTO DENKO CORPORATION

Inventor： Masatsugu HIGASHI ,  Koji SHITARA ,  Akiko TANAKA ,  Katsuhiko KAMIYA

IPC: C09J133/14 ,  C09J7/02 ,  C09J133/10

CPC classification number: C09J133/14 ,  C09J7/385 ,  C09J133/066 ,  C09J133/10 ,  C09J2203/318 ,  Y10T428/2891

Abstract: A pressure-sensitive adhesive of the invention includes a (meth)acryl-based polymer obtained by polymerization of a monomer component including: an alkyl(meth)acrylate (a1) having a branched alkyl group of 8 to 24 carbon atoms at an ester end; and an alkyl(meth)acrylate (a2) having a linear alkyl group of 8 to 24 carbon atoms at an ester end. The pressure-sensitive adhesive can has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant.

Abstract translation: 本发明的压敏粘合剂包括通过聚合单体组分而获得的（甲基）丙烯酸类聚合物，所述单体组分包括在酯末端具有8至24个碳原子的支链烷基的（甲基）丙烯酸烷基酯（a1） ; 和在酯端具有8-24个碳原子的直链烷基的（甲基）丙烯酸烷基酯（a2）。 粘合剂可以具有令人满意的粘合性能水平并且可以形成具有较低介电常数的压敏粘合剂层。