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：US20140322440A1

公开(公告)日：2014-10-30

申请号：US14263282

申请日：2014-04-28

Applicant: NITTO DENKO CORPORATION

Inventor： Takahiro NONAKA ,  Hiroaki KISHIOKA ,  Hirofumi KATAMI

IPC: G02B1/10

CPC classification number: G02B1/10

Abstract: A method for manufacturing an optical member includes forming a printed layer on one surface of a sheet substrate or flat-plate substrate. The method further includes coating one or more pressure-sensitive adhesives selected from the group consisting of a hot melt pressure-sensitive adhesive and an active energy-ray curable pressure-sensitive adhesive on a surface on a printed layer side of the sheet substrate or flat-plate substrate, and forming a pressure-sensitive adhesive layer of the pressure-sensitive adhesive.

Abstract translation: 一种光学构件的制造方法包括在片状基板或平板基板的一个表面上形成印刷层。 该方法还包括将一种或多种选自热熔压敏粘合剂和活性能量射线固化型压敏粘合剂的压敏粘合剂涂布在片状基材的印刷层侧的表面上或平坦 并且形成压敏粘合剂的压敏粘合剂层。

公开(公告)号：US20130158221A1

公开(公告)日：2013-06-20

申请号：US13717986

申请日：2012-12-18

Applicant: NITTO DENKO CORPORATION

Inventor： Tomohide BANBA ,  Hiroaki KISHIOKA ,  Takahiro NONAKA ,  Masatomo NATSUI ,  Hiroaki FUMOTO ,  Shou TAKARADA ,  Takashi SUZUKI

IPC: C09J139/06 ,  C09J133/12 ,  C09J133/14

CPC classification number: C09J139/06 ,  C09J133/06 ,  C09J133/12 ,  C09J133/14 ,  C09J133/26

Abstract: The present invention provides an optical pressure-sensitive adhesive sheet which can control the change in capacitance, which cause malfunction, when the optical pressure-sensitive adhesive sheet is applied to an optical member. The present invention provides an optical pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 2 to 8, and a dielectric tangent at a frequency of 1 MHz is more than 0 and 0.2 or less.

Abstract translation: 本发明提供一种光学压敏粘合片，当将光学粘合片施加到光学构件上时，可以控制电容的变化，这导致故障。 本发明提供一种含有粘合剂层的光学粘合片，其中1MHz的频率下的相对介电常数为2〜8，频率为1MHz的介质正切大于0， 0.2以下。

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：US20130123451A1

公开(公告)日：2013-05-16

申请号：US13676634

申请日：2012-11-14

Applicant: Nitto Denko Corporation

Inventor： Ai TAKEDA ,  Hiroaki KISHIOKA

IPC: C09J133/12 ,  C09J139/06

CPC classification number: C09J133/12 ,  C09J133/066 ,  C09J139/06

Abstract: The present invention provides a pressure-sensitive adhesive sheet excellent in anti-white turbidity and anti-foaming release property under a high-temperature and high-humidity environment and corrosion resistance. The invention provides a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which includes an acrylic polymer (A) and has a gel fraction of 70 to 100 wt %, wherein the acrylic polymer (A) is formed from a component including, as an essential monomer component, methyl methacrylate and a hydroxyl group-containing monomer in an amount of 10 to 40 wt % based on a total amount (100 wt %) of the monomer component, the component forming the acrylic polymer (A) substantially does not contain a carboxyl group-containing monomer.

Abstract translation: 本发明提供了在高温高湿环境下耐白浊浊度和消泡性能优异的耐腐蚀性的粘合片。 本发明提供一种压敏粘合片，其包含压敏粘合剂层，其包含丙烯酸类聚合物（A），凝胶分数为70〜100重量％，其中，所述丙烯酸系聚合物（A） 作为必需单体成分，甲基丙烯酸甲酯和含羟基单体的量相对于单体成分的总量（100重量％）为10〜40重量％，形成丙烯酸系聚合物（A）的成分基本上为 不含有含羧基的单体。

公开(公告)号：US20130115450A1

公开(公告)日：2013-05-09

申请号：US13722276

申请日：2012-12-20

Applicant: Nitto Denko Corporation

Inventor： Hiroaki KISHIOKA ,  Ryuuichi KABUTOYA

IPC: C09J7/02

CPC classification number: C09J7/0217 ,  C09J7/385 ,  C09J143/04 ,  G02F2001/133607 ,  G02F2202/28 ,  Y10T428/2852 ,  Y10T428/2878

Abstract: The present invention provide a pressure-sensitive adhesive sheet for optical member adhesion, which includes at least an acrylic pressure-sensitive adhesive layer, in which the acrylic pressure-sensitive adhesive layer has a storage modulus at 23° C. of from 1.0×104 Pa to less than 1.0×105 Pa and has a peeling pressure-sensitive adhesive force (with respect to polyethylene terephthalate, 180° peeling) at 80° C. of 2.5 N/20 mm or more. This pressure-sensitive adhesive sheet is excellent in thickness unevenness absorbability and durability even when the sheet is a thin film.

Abstract translation: 本发明提供一种用于光学部件粘合的压敏粘合片，其至少包括丙烯酸类压敏粘合剂层，其中丙烯酸类压敏粘合剂层在23℃下的储能模量为1.0×10 4 Pa至小于1.0×10 5 Pa，并且在80℃下具有2.5N / 20mm以上的剥离压敏粘合力（相对于聚对苯二甲酸乙二醇酯，180°剥离）。 该压敏粘合片即使是片状薄膜，也具有优异的厚度不均匀性吸收性和耐久性。

公开(公告)号：US20140044961A1

公开(公告)日：2014-02-13

申请号：US13962474

申请日：2013-08-08

Applicant: NITTO DENKO CORPORATION

Inventor： Yoshihito TAKAMI ,  Hirofumi KATAMI ,  Hiroaki KISHIOKA

IPC: C08F220/10 ,  C09J7/02

CPC classification number: C08F220/10 ,  C09J7/22 ,  C09J7/38 ,  C09J7/385 ,  C09J133/066 ,  C09J2203/318 ,  C09J2433/00 ,  Y10T428/2891

Abstract: A pressure-sensitive adhesive capable of forming a pressure-sensitive adhesive layer with high transparency and low sebum-induced swelling rate is provided, which includes a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 40 to 82% by weight of an alkyl(meth)acrylate having an alkyl group of 4 to 18 carbon atoms at the ester end and 18 to 35% by weight of a hydroxyl group-containing monomer.

Abstract translation: 提供一种能够形成具有高透明性和低皮脂引起的溶胀速率的压敏粘合剂层的压敏粘合剂，其包括通过将包含40-82％的单体组分聚合而获得的（甲基）丙烯酸类聚合物 在酯末端具有4至18个碳原子的烷基（甲基）丙烯酸酯和18-35重量％的含羟基单体的重量。