公开(公告)号：US20180044556A1

公开(公告)日：2018-02-15

申请号：US15729412

申请日：2017-10-10

Applicant: Nitto Denko Corporation

Inventor： Atsushi Yasui ,  Yuusuke Toyama ,  Mizue Nagata ,  Tomoyuki Kimura ,  Masayuki Satake

IPC: C09J7/02 ,  C09J133/02 ,  C09J133/06 ,  C08F220/26 ,  C08F220/18 ,  C09J133/08 ,  C08F220/28

CPC classification number: C09J7/385 ,  C08F220/18 ,  C08F220/26 ,  C08F220/28 ,  C09J133/02 ,  C09J133/06 ,  C09J133/08 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2401/006 ,  C09J2433/006 ,  G02F2202/28 ,  Y10T428/2848 ,  Y10T428/2891

Abstract: A pressure-sensitive adhesive composition for an optical film of the present invention includes a (meth)acrylic polymer(A) that comprises, as monomer units, 67 to 96.99% by weight of alkyl (meth)acrylate(a1), 1 to 20% by weight of benzyl (meth)acrylate(a2), 2 to 10% by weight of a carboxyl group-containing monomer(a3) and 0.01 to 3% by weight of a hydroxyl group-containing monomer(a4), has a weight average molecular weight(Mw) of 1,600,000 or more, and satisfy a weight average molecular weight(Mw)/number average molecular weight(Mn) ratio of 1.8 to 10. The pressure-sensitive adhesive composition can satisfy durability that does not cause peeling, separation at the state in which the optical film was attached, and can form a pressure-sensitive adhesive layer capable of improving display non-uniformity caused by a white display leakage at a peripheral portion.

公开(公告)号：US20170010399A1

公开(公告)日：2017-01-12

申请号：US15119278

申请日：2015-02-17

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Yuusuke Toyama ,  Shinsuke Akizuki

IPC: G02B5/30 ,  G02F1/1343 ,  B32B7/12 ,  G02F1/1335

CPC classification number: G02B5/3033 ,  B32B7/12 ,  B32B2307/202 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2457/20 ,  G02B5/305 ,  G02F1/133528 ,  G02F1/13439 ,  G02F2202/16 ,  G02F2202/22 ,  G02F2202/28

Abstract: Provided is a laminate including: a pressure-sensitive adhesive layer attached polarizing film including a polarizing film and a pressure-sensitive adhesive layer or layers provided on one or both sides of the polarizing film; and a transparent conductive member including a transparent conductive layer in which the transparent conductive member is bonded to the pressure-sensitive adhesive layer attached polarizing film in such a manner that the pressure-sensitive adhesive layer of the pressure-sensitive adhesive layer attached polarizing film is in contact with the transparent conductive layer of the transparent conductive member, wherein the polarizing film includes a polarizer and an inorganic layer or layers provided on one or both sides of the polarizer, and the pressure-sensitive adhesive layer is provided on at least one side of the inorganic layer of the polarizing film. Even when placed on a transparent conductive layer, the laminate can prevent degradation of the transparent conductive layer.

Abstract translation: 本发明提供一种层压体，其包括：粘合剂层，其包含偏振膜和设置在偏振膜的一面或两面上的压敏粘合剂层; 以及透明导电构件，其包括透明导电层，其中透明导电构件以粘合剂层粘合的偏光膜的压敏粘合剂层为粘合剂的粘合剂层附着的偏光膜 与所述透明导电构件的透明导电层接触，其中所述偏振膜包括偏振器和设置在所述偏振器的一侧或两侧上的无机层，并且所述压敏粘合剂层设置在至少一个侧面上 的偏振膜的无机层。 即使放置在透明导电层上，也可以防止透明导电层的劣化。

公开(公告)号：US20160085007A1

公开(公告)日：2016-03-24

申请号：US14854219

申请日：2015-09-15

Applicant: NITTO DENKO CORPORATION

Inventor： Shinsuke Akizuki ,  Yuusuke Toyama ,  Takaaki Ishii

IPC: G02B5/30 ,  C09J133/14

CPC classification number: G02B5/305 ,  C09J133/06 ,  C09J133/066

Abstract: There is provided a thin polarizing plate with a pressure-sensitive adhesive layer hardly warping. A polarizing plate with a pressure-sensitive adhesive layer of the present invention includes: first pressure-sensitive adhesive layer, a protective film, and a polarizing film in the stated order, wherein: the polarizing film has a thickness of 13 μm or less; a thickness ratio between the protective film and the polarizing film (thickness of the protective film/thickness of the polarizing film) is from 1.5 to 9.0; and a creep amount when a load of 500 g is applied to the first pressure-sensitive adhesive layer for 1 hour is from 20 μm/h to 300 μm/h.

Abstract translation: 提供了具有难以翘曲的压敏粘合剂层的薄偏振片。 具有本发明的粘合剂层的偏光板具有以下顺序的第一粘合剂层，保护膜和偏振膜，其中：所述偏振膜的厚度为13μm以下; 保护膜和偏振膜之间的厚度比（保护膜的厚度/偏振膜的厚度）为1.5〜9.0; 当向第一粘合剂层施加500g载荷1小时时的蠕变量为20μm/ h〜300μm/ h。

公开(公告)号：US20150293287A1

公开(公告)日：2015-10-15

申请号：US14424899

申请日：2013-08-27

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Yuusuke Toyama ,  Arata Fujihara ,  Tomoyuki Kimura

IPC: G02B5/30 ,  C09J133/14 ,  C09J7/02 ,  G02B1/14 ,  G02F1/1335

Abstract: A pressure-sensitive adhesive layer attached polarizing film of invention includes a polarizing film; and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film comprises a polarizer and a transparent protective film provided on only one side of the polarizer, the pressure-sensitive adhesive layer is provided on a side of the polarizer opposite to the side on which the transparent protective film is provided, and the pressure-sensitive adhesive layer is made from a pressure-sensitive adhesive composition including a (meth)acryl-based polymer (A), an onium-anion salt (B1), and an alkali metal salt (B2). The pressure-sensitive adhesive layer attached polarizing film has a pressure-sensitive adhesive layer possessing an antistatic function and satisfactory durability even after a humidity test under severe conditions and is less prone to degradation of optical properties even after a humidity test under severe conditions.

Abstract translation: 本发明的带有粘合剂层的偏光膜包括偏光膜; 以及设置在所述偏振膜上的压敏粘合剂层，其中所述偏振膜包括偏振器和设置在所述偏振片的一侧上的透明保护膜，所述压敏粘合剂层设置在所述偏振片的与所述偏振片相对的一侧 设置透明保护膜的一面，并且粘合剂层由包含（甲基）丙烯酸类聚合物（A），鎓 - 阴离子盐（B1）和 碱金属盐（B2）。 附着有粘合剂层的偏光膜具有即使在恶劣条件下进行湿度试验之后也具有抗静电功能和令人满意的耐久性的粘合剂层，即使在恶劣条件下进行湿度试验之后也不容易劣化光学性能。

公开(公告)号：US20130330550A1

公开(公告)日：2013-12-12

申请号：US13910605

申请日：2013-06-05

Applicant: NITTO DENKO CORPORATION

Inventor： Yuusuke Toyama ,  Tomoyuki Kimura ,  Masakuni Fujita

IPC: C09D141/00 ,  C09J7/02

CPC classification number: C09D141/00 ,  C08G2261/3223 ,  C08G2261/51 ,  C08G2261/794 ,  C08L2201/54 ,  C08L2205/03 ,  C09D165/00 ,  C09D171/02 ,  C09J7/50 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2465/003 ,  C09J2471/003 ,  Y10T428/2852 ,  Y10T428/31533 ,  C08L33/062 ,  C08L75/00 ,  C08L65/00 ,  C08L75/04

Abstract: A coating liquid for forming an anchor layer interposed between an optical film and a pressure-sensitive adhesive layer, comprising a polythiophene based polymer, a polyoxyalkylene-group-containing polymer, and a mixed solvent comprising 65 to 100% by weight of water and 0 to 35% by weight of an alcohol.

Abstract translation: 一种用于形成介于光学膜和压敏粘合剂层之间的锚定层的涂布液，包括聚噻吩基聚合物，含聚氧化烯基的聚合物和包含65至100重量％的水和0 至35重量％的醇。

公开(公告)号：US10768473B2

公开(公告)日：2020-09-08

申请号：US15563163

申请日：2016-03-23

Applicant: NITTO DENKO CORPORATION

Inventor： Masakuni Fujita ,  Tomoyuki Kimura ,  Yuusuke Toyama

IPC: G02F1/1335 ,  B32B7/02 ,  B32B27/00 ,  G02B5/30 ,  C09J133/00 ,  C09J7/38 ,  B32B7/12 ,  B32B27/06 ,  C09J133/08 ,  C08K5/5435

Abstract: An object of the present invention is to provide a pressure-sensitive-adhesive composition for forming a pressure-sensitive-adhesive layer capable of keeping a high endurance even when this layer is exposed to a heated environment or allowed to stand still for a long term. Another object of the invention is to provide a pressure-sensitive-adhesive layer formed from the pressure-sensitive-adhesive composition, a pressure-sensitive-adhesive-layer-attached polarizing film having the pressure-sensitive-adhesive layer, and an image display device including the pressure-sensitive-adhesive-layer-attached polarizing film. The composition is a pressure-sensitive-adhesive composition including a (meth)acryl-based polymer, and an oligomer epoxy-group-containing silane coupling agent having an epoxy equivalent of 250 to 600 g/mol.

公开(公告)号：US10191195B2

公开(公告)日：2019-01-29

申请号：US14854219

申请日：2015-09-15

Applicant: NITTO DENKO CORPORATION

Inventor： Shinsuke Akizuki ,  Yuusuke Toyama ,  Takaaki Ishii

IPC: G02B5/30 ,  C09J133/06

Abstract: There is provided a thin polarizing plate with a pressure-sensitive adhesive layer hardly warping. A polarizing plate with a pressure-sensitive adhesive layer of the present invention includes: first pressure-sensitive adhesive layer, a protective film, and a polarizing film in the stated order, wherein: the polarizing film has a thickness of 13 μm or less; a thickness ratio between the protective film and the polarizing film (thickness of the protective film/thickness of the polarizing film) is from 1.5 to 9.0; and a creep amount when a load of 500 g is applied to the first pressure-sensitive adhesive layer for 1 hour is from 20 μm/h to 300 μm/h.

公开(公告)号：US10005257B2

公开(公告)日：2018-06-26

申请号：US13912357

申请日：2013-06-07

Applicant: NITTO DENKO CORPORATION

Inventor： Yuusuke Toyama ,  Masakuni Fujita ,  Atsushi Yasui ,  Tomoyuki Kimura

IPC: C09J7/50 ,  B32B7/12 ,  G02B1/10 ,  C09J5/02 ,  G02B5/30

CPC classification number: B32B7/12 ,  C09J5/02 ,  C09J7/50 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2429/006 ,  C09J2433/00 ,  C09J2471/003 ,  G02B1/10 ,  G02B5/3033 ,  Y10T428/2843

Abstract: A method for producing a pressure-sensitive adhesive layer-carrying optical film includes the step of applying, over the optical film, a coating liquid for anchor layer comprising a mixed solvent comprising 10 to 100% by weight of water and 90 to 0% by weight of an alcohol, and a polyoxyalkylene-group-containing polymer so as to give an applied-coat thickness before drying of 20 μm or less; and next drying the workpiece under drying conditions satisfying both of the following requirements (1) and (2): (1) the drying temperature T is from 40 to 70° C., and (2) a value obtained by multiplying the drying temperature T (° C.) by the drying period H (seconds), T×H, satisfies: 400≤(T×H)≤4000, thereby removing the mixed solvent to form the anchor layer.

公开(公告)号：US09809729B2

公开(公告)日：2017-11-07

申请号：US14301486

申请日：2014-06-11

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Yuusuke Toyama ,  Takaaki Ishii ,  Shinsuke Akizuki

IPC: G02B5/30 ,  C08K3/16 ,  C09J7/02 ,  C09J133/08

CPC classification number: C09J7/0217 ,  C08K3/16 ,  C09J7/385 ,  C09J133/08 ,  C09J2203/318 ,  C09J2205/102 ,  G02B5/3033 ,  Y10T428/2848 ,  Y10T428/2891

Abstract: A pressure-sensitive adhesive layer for optical applications of the present invention is made from a pressure-sensitive adhesive for optical applications including a base polymer (A), and the pressure-sensitive adhesive layer for optical applications includes iodine and/or iodide ions (B). The pressure-sensitive adhesive layer for optical applications has an antistatic function and can satisfy a durability.

公开(公告)号：US09676970B2

公开(公告)日：2017-06-13

申请号：US14355236

申请日：2012-11-02

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Yuusuke Toyama ,  Tomoyuki Kimura ,  Masayuki Satake

IPC: C09J11/06 ,  C09J133/08 ,  G02B5/30 ,  C09J7/02 ,  C09J4/06 ,  C09J133/06 ,  C08G18/62 ,  C08G18/71 ,  C08G18/28 ,  C08K5/42

CPC classification number: C09J11/06 ,  C08G18/289 ,  C08G18/6229 ,  C08G18/711 ,  C08G2170/40 ,  C08K5/42 ,  C09J4/06 ,  C09J133/066 ,  C09J133/08 ,  G02B5/3025 ,  G02F2202/28 ,  Y10T428/2843 ,  Y10T428/2891 ,  Y10T428/31935 ,  C08F2220/1808 ,  C08F220/20 ,  C08F220/06

Abstract: A pressure-sensitive adhesive composition, comprising: (A) a (meth)acryl-based polymer; and (B) an ionic compound comprising an anion component and a cation component, wherein the anion component is at least one of an anion component represented by the general formula (1): (CnF2n+1SO2)2N−,  (1) wherein n is an integer of 3 to 10, and an anion component represented by the general formula (2): CF2(CmF2mSO2)2N−,  (2) wherein m is an integer of 2 to 10.