公开(公告)号：US10883022B2

公开(公告)日：2021-01-05

申请号：US14895115

申请日：2014-06-24

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuho Nagata ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Kayo Shimokawa ,  Kenichi Okada ,  Toshitsugu Hosokawa

IPC: C09J11/06 ,  C09J7/22 ,  G02B5/30 ,  C09J133/06 ,  C08F220/18 ,  C09J7/38 ,  C09J133/04 ,  C09J143/04 ,  C09J9/00 ,  C09J133/12 ,  C09J143/02 ,  G02F1/1335 ,  C08K5/521 ,  G02B1/14

Abstract: A pressure-sensitive adhesive composition for an optical film, includes a (meth)acryl-based polymer obtained by polymerization of a monomer component including, as a main component, an alkyl (meth)acrylate having an alkyl group of 4 to 18 carbon atoms; and a phosphate ester compound. The pressure-sensitive adhesive composition is capable of forming a pressure-sensitive adhesive layer for optical films. The pressure-sensitive adhesive layer that is for use on optical films and makes it possible to suppress an increase in the surface resistance of a transparent conductive layer even when a laminate including a transparent conductive layer and an optical film such as a polarizing plate with the pressure-sensitive adhesive layer interposed therebetween is stored under hot and humid conditions.

公开(公告)号：US20150132567A1

公开(公告)日：2015-05-14

申请号：US14400682

申请日：2013-04-16

Applicant: NITTO DENKO CORPORATION

Inventor： Taiki Shimokuri ,  Kunihiro Inui ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Toshitsugu Hosokawa ,  Takaaki Ishii

IPC: C09J133/08

CPC classification number: C09J133/08 ,  C08F265/06 ,  C09J7/22 ,  C09J7/38 ,  C09J151/003 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2433/00 ,  Y10T428/254 ,  C08F2220/1825 ,  C08F220/14 ,  C08F220/06 ,  C08F2230/085 ,  C08F220/18 ,  C08F230/08

Abstract: It is an object of the invention to provide a pressure-sensitive adhesive layer that is designed for an optical film to be less likely to cause depolarization and to have good reworkability and good recyclability. The present invention relates to a pressure-sensitive adhesive layer for an optical film made from an aqueous dispersion-type pressure-sensitive adhesive composition, wherein the aqueous dispersion-type pressure-sensitive adhesive composition contains an emulsion particle having a core-shell structure comprising a shell layer of (A) a (meth)acryl-based copolymer and a core layer of (B) a methacryl-based copolymer in a single emulsion particle, a mixture ratio (A)/(B) (on a solid weight basis) of the (meth)acryl-based copolymer (A) and the methacryl-based copolymer (B) is in the range of 50/50 to 90/10, the emulsion particle in the aqueous dispersion-type pressure-sensitive adhesive composition has a number average particle size of 10 nm to 100 nm.

Abstract translation: 本发明的目的是提供一种设计用于光学薄膜的压敏粘合剂层不太可能引起去极化并且具有良好的再加工性和良好的可再循环性。 本发明涉及一种由水分散型压敏粘合剂组合物制成的用于光学膜的压敏粘合剂层，其中水分散型压敏粘合剂组合物含有具有核 - 壳结构的乳液颗粒，其包含： （A）（甲基）丙烯酸类共聚物的壳层和（B）甲基丙烯酸酯共聚物在单一乳液颗粒中的核心层，混合比（A）/（B）（固体重量） ）（甲基）丙烯酸系共聚物（A）和甲基丙烯酸系共聚物（B）的比例在50/50〜90/10的范围内，水分散型粘合剂组合物中的乳液粒子具有 数均粒径为10nm〜100nm。

公开(公告)号：US20130078407A1

公开(公告)日：2013-03-28

申请号：US13626159

申请日：2012-09-25

Applicant: NITTO DENKO CORPORATION

Inventor： Taiki Shimokuri ,  Kunihiro Inui ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Toshitsugu Hosokawa ,  Takaaki Ishii

IPC: C09J7/02 ,  B32B33/00 ,  C09J133/10 ,  B05D5/10

CPC classification number: C09J7/0217 ,  C09J7/385 ,  C09J133/08 ,  C09J2201/622 ,  Y10T428/1476

Abstract: An object of the present invention is to provide a method for manufacturing an optical film-forming pressure-sensitive adhesive layer, which can reduce the problem with visibility without a reduction in productivity, such as a reduction in coating speed. A method for manufacturing an optical film-forming pressure-sensitive adhesive layer, comprising the steps of: (1) applying, to a release film, an aqueous dispersion-type pressure-sensitive adhesive including an aqueous dispersion containing a (meth)acryl-based polymer in the form of an aqueous dispersion; and (2) drying the applied aqueous dispersion-type pressure-sensitive adhesive, wherein the aqueous dispersion-type pressure-sensitive adhesive has a viscosity of 0.01 Pa·s to 0.1 Pa·s at a shear rate of 4,000 (l/s), the optical film-forming pressure-sensitive adhesive layer formed on the release film has a surface roughness (Ra) of 10 nm to 40 nm, and the optical film-forming pressure-sensitive adhesive layer has a haze of 1% or less.

Abstract translation: 本发明的目的是提供一种制造光学成膜压敏粘合剂层的方法，其可以在不降低生产率的情况下降低可见度的问题，例如涂布速度的降低。 一种光学成膜压敏粘合剂层的制造方法，其特征在于，包括以下步骤：（1）向脱模膜涂布含有（甲基）丙烯酸系粘合剂层的水性分散体的水性分散型压敏粘合剂， 基于水的分散体形式的聚合物; 和（2）干燥所施加的水性分散型压敏粘合剂，其中水分散型压敏粘合剂在剪切速率为4000（l / s）时具有0.01Pa·s至0.1Pa·s的粘度， 形成在剥离膜上的光学膜形成用粘合剂层的表面粗糙度（Ra）为10nm〜40nm，光学膜形成用粘合剂层的雾度为1％以下。

公开(公告)号：US20160264826A1

公开(公告)日：2016-09-15

申请号：US15032838

申请日：2014-08-01

Applicant: NITTO DENKO CORPORATION

Inventor： Kayo Shimokawa ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Kenichi Okada ,  Toshitsugu Hosokawa ,  Masakuni Fujita

IPC: C09J7/02 ,  G02B5/30

CPC classification number: C09J7/38 ,  C09D5/24 ,  C09D181/00 ,  C09D201/00 ,  C09D201/06 ,  C09J7/20 ,  C09J7/22 ,  C09J133/10 ,  C09J2201/122 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2433/00 ,  C09J2481/00 ,  C09J2481/003 ,  G02B5/3033 ,  C08F220/14 ,  C08F2220/1825 ,  C08F220/06 ,  C08F2230/085 ,  C08F230/02

Abstract: Provided are a pressure-sensitive adhesive layer-carrying optical member having good antistatic properties, having high tackiness between an optical member and a pressure-sensitive adhesive layer made from a water-dispersible pressure-sensitive adhesive composition, and allowing the pressure-sensitive adhesive layer to have high durability; an image display device including such a pressure-sensitive adhesive layer-carrying optical member; and a method for producing such a pressure-sensitive adhesive layer-carrying optical member, in which the pressure-sensitive adhesive layer-carrying optical member includes a pressure-sensitive adhesive layer made from a water-dispersible pressure-sensitive adhesive composition, an anchor layer made from an anchor-layer-forming coating liquid, and an optical member, wherein the anchor-layer-forming coating liquid includes a polythiophene based polymer, an oxazoline group-containing polymer, and an aqueous solvent including 60% by weight or more of water, and the anchor layer is interposed between the pressure-sensitive adhesive layer and the optical member.

Abstract translation: 提供一种具有良好抗静电性的粘合剂层承载光学部件，在光学部件和由水分散性压敏粘合剂组合物制成的压敏粘合剂层之间具有高粘合性，并且使压敏粘合剂 层具有高耐久性; 包括这种压敏粘合剂层承载光学部件的图像显示装置; 以及制造这种带粘合剂层的光学部件的方法，其中，粘合剂层承载光学部件包括由水分散性压敏粘合剂组合物制成的压敏粘合剂层，锚固件 由锚定层形成用涂布液形成的层，以及光学部件，其中，所述锚层形成用涂布液包含聚噻吩类聚合物，含恶唑啉基聚合物和含有60重量％以上的水性溶剂 的水，并且锚定层插入在压敏粘合剂层和光学构件之间。

公开(公告)号：US20160215182A1

公开(公告)日：2016-07-28

申请号：US14916969

申请日：2014-02-07

Applicant: NITTO DENKO CORPORATION

Inventor： Toshitaka Takahashi ,  Yousuke Makihata ,  Kayo Shimokawa ,  Mizuho Nagata ,  Kenichi Okada ,  Toshitsugu Hosokawa

IPC: C09J151/00 ,  B32B7/12

CPC classification number: C09J151/003 ,  B32B7/12 ,  B32B2255/26 ,  B32B2264/025 ,  B32B2457/20 ,  B32B2457/202 ,  C08F2/22 ,  C08F220/14 ,  C08F220/18 ,  C08F265/06 ,  C08L1/00 ,  C09J133/06 ,  C08F2220/1825 ,  C08F2220/1841 ,  C08F220/06 ,  C08F2220/1858

Abstract: It is an object of the invention to provide a water-dispersible pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer having removability and a sufficient level of adhesion reliability and to provide a pressure-sensitive adhesive layer made from such a water-dispersible pressure-sensitive adhesive composition. It is another object of the invention to provide a pressure-sensitive adhesive optical film including an optical film and such a pressure-sensitive adhesive layer provided on at least one side of the optical film and to provide an image display device having such a pressure-sensitive adhesive optical film. The present invention relates to a water-dispersible pressure-sensitive adhesive composition, comprising emulsion particles each having a core-shell structure in which (A) a (meth)acryl copolymer forms a core layer and (B) another (meth)acryl copolymer forms a shell layer, wherein the (meth)acryl copolymer (B) has a glass transition temperature of −10° C. to 20° C.

Abstract translation: 本发明的目的是提供一种能够形成具有可去除性和足够的粘合可靠性水平的压敏粘合剂层的水分散性压敏粘合剂组合物，并提供由这种水制成的压敏粘合剂层 可分散的压敏粘合剂组合物。 本发明的另一个目的是提供一种包括光学膜的压敏粘合剂光学膜和设置在光学膜的至少一侧的这种压敏粘合剂层，并提供具有这种压敏粘合剂的图像显示装置， 敏感光学薄膜。 本发明涉及一种水分散性压敏粘合剂组合物，其包含各自具有核 - 壳结构的乳液颗粒，其中（A）（甲基）丙烯酸共聚物形成芯层和（B）另一（甲基）丙烯酸共聚物 形成壳层，其中（甲基）丙烯酸共聚物（B）的玻璃化转变温度为-10℃至20℃。

公开(公告)号：US20160130478A1

公开(公告)日：2016-05-12

申请号：US14895115

申请日：2014-06-24

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuho Nagata ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Kayo Shimokawa ,  Kenichi Okada ,  Toshitsugu Hosokawa

IPC: C09J11/06 ,  G02B5/30 ,  C09J9/00 ,  C09J143/02 ,  C09J133/12 ,  G02F1/1335 ,  G02B1/14

CPC classification number: C09J11/06 ,  B32B2457/202 ,  C08F220/18 ,  C08K5/521 ,  C09J7/22 ,  C09J7/38 ,  C09J9/00 ,  C09J133/04 ,  C09J133/06 ,  C09J133/12 ,  C09J143/02 ,  C09J143/04 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2433/00 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/305 ,  G02F1/133528 ,  G02F2202/22 ,  G02F2202/28 ,  Y10T428/1036 ,  Y10T428/1041 ,  Y10T428/105 ,  Y10T428/1059 ,  Y10T428/1077 ,  C08F2220/1825 ,  C08F220/14 ,  C08F220/06 ,  C08F2230/085 ,  C08F230/02

Abstract: A pressure-sensitive adhesive composition for an optical film, includes a (meth)acryl-based polymer obtained by polymerization of a monomer component including, as a main component, an alkyl(meth)acrylate having an alkyl group of 4 to 18 carbon atoms; and a phosphate ester compound. The pressure-sensitive adhesive composition is capable of forming a pressure-sensitive adhesive layer for optical films. The pressure-sensitive adhesive layer that is for use on optical films and makes it possible to suppress an increase in the surface resistance of a transparent conductive layer even when a laminate including a transparent conductive layer and an optical film such as a polarizing plate with the pressure-sensitive adhesive layer interposed therebetween is stored under hot and humid conditions.

Abstract translation: 用于光学膜的压敏粘合剂组合物包括通过以包含具有4至18个碳原子的烷基的（甲基）丙烯酸烷基酯作为主要成分的单体组分聚合而获得的（甲基）丙烯酸类聚合物 ; 和磷酸酯化合物。 压敏粘合剂组合物能够形成用于光学膜的压敏粘合剂层。 即使在包含透明导电层和偏光板等的光学膜的层叠体中，也可以抑制透明导电层的表面电阻的增加， 夹在它们之间的压敏粘合剂层在热和潮湿条件下储存。

公开(公告)号：US20150353787A1

公开(公告)日：2015-12-10

申请号：US14655933

申请日：2013-12-20

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuho Nagata ,  Kenichi Okada ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Kayo Shimokawa ,  Toshitsugu Hosokawa

IPC: C09J133/08 ,  C09J7/02

CPC classification number: C09J133/10 ,  C09J7/22 ,  C09J7/38 ,  C09J7/385 ,  C09J133/08 ,  C09J2201/602 ,  C09J2203/318 ,  C09J2433/00 ,  C08F2220/1825 ,  C08F220/06 ,  C08F230/02 ,  C08F230/00

Abstract: It is an object of the invention to provide a water-dispersible pressure-sensitive adhesive composition that is suitable for use on a transparent conductive layer and capable of forming a pressure-sensitive adhesive layer effective in suppressing the corrosion of various adherends such as transparent conductive thin coatings, in particular, effective in suppressing the corrosion in a high-temperature environment and a high-temperature, high-humidity environment, and capable of providing good optical properties on a transparent conductive layer. The invention is a water-dispersible pressure-sensitive adhesive composition for a transparent conductive layer, the composition comprising: a (meth)acryl-based polymer obtained by polymerizing, in the presence of a surfactant, a monomer component comprising an alkyl(meth)acrylate having an alkyl group of 4 to 14 carbon atoms, wherein the surfactant is a reactive surfactant having three or less oxyalkylene repeating units and/or a reactive surfactant having no oxyalkylene repeating unit.

Abstract translation: 本发明的目的是提供一种适用于透明导电层并能够形成压敏粘合剂层的水分散性压敏粘合剂组合物，其有效抑制各种被粘物的腐蚀，例如透明导电 特别是在高温环境和高温高湿环境下有效抑制腐蚀，能够在透明导电层上提供良好的光学性能。 本发明是用于透明导电层的水分散性压敏粘合剂组合物，该组合物包含：（甲基）丙烯酸基聚合物，其通过在表面活性剂存在下聚合包含（甲基）丙烯酸烷基酯的单体组分， 丙烯酸酯，其中表面活性剂是具有三个或更少个氧化烯重复单元的反应性表面活性剂和/或不具有氧化烯重复单元的反应性表面活性剂。

公开(公告)号：US20160289516A1

公开(公告)日：2016-10-06

申请号：US15036646

申请日：2014-06-10

Applicant: NITTO DENKO CORPORATION

Inventor： Yousuke Makihata ,  Kenichi Okada ,  Toshitaka Takahashi ,  Kayo Shimokawa ,  Taiki Shimokuri ,  Toshitsugu Hosokawa ,  Kunihiro Inui

IPC: C09J133/12 ,  B32B27/06 ,  G02B1/14 ,  B32B7/12 ,  C09J7/02 ,  G02B5/30

CPC classification number: C09J133/12 ,  B32B7/12 ,  B32B27/06 ,  B32B2307/40 ,  C08F265/06 ,  C09J7/385 ,  C09J151/003 ,  C09J2203/318 ,  C09J2483/005 ,  G02B1/14 ,  G02B5/30 ,  G02B5/3033 ,  C08F220/14 ,  C08F2220/1825 ,  C08F2220/1841 ,  C08F220/06 ,  C08F2230/085 ,  C08F2220/185 ,  C08F230/02 ,  C08F230/08 ,  C08F220/18

Abstract: A water-dispersible pressure-sensitive adhesive composition for an optical film includes emulsion particles each having a core-shell structure in which (A) a (meth)acryl copolymer forms a core layer and (B) a (meth)acryl copolymer forms a shell layer in a single emulsion particle, wherein the (meth)acryl copolymer (A) includes a monomer unit derived from an alkyl (meth)acrylate, the (meth)acryl copolymer (B) includes a monomer unit derived from an aromatic ring-containing (meth)acrylic monomer and a monomer unit derived from an alkyl (meth)acrylate, and a content of the monomer unit derived from the aromatic ring-containing (meth)acrylic monomer in the (meth)acryl copolymer (B) is from 1 to 28% by weight based on the total weight of monomer component used to form the (meth)acryl copolymers (A) and (B).

Abstract translation: 用于光学膜的水分散性压敏粘合剂组合物包括各自具有核 - 壳结构的乳液颗粒，其中（A）（甲基）丙烯酸共聚物形成芯层，（B）（甲基）丙烯酸共聚物形成 （甲基）丙烯酸共聚物（A）包含衍生自（甲基）丙烯酸烷基酯的单体单元，（甲基）丙烯酸共聚物（B）包括衍生自芳族环状烯烃共聚物的单体单元， （甲基）丙烯酸系单体和来自（甲基）丙烯酸烷基酯的单体单元，来自（甲基）丙烯酸共聚物（B）中的含芳环的（甲基）丙烯酸系单体的单体单元的含量为 1〜28重量％，基于用于形成（甲基）丙烯酸共聚物（A）和（B）的单体成分的总重量。

公开(公告)号：US09181458B2

公开(公告)日：2015-11-10

申请号：US13626159

申请日：2012-09-25

Applicant: NITTO DENKO CORPORATION

Inventor： Taiki Shimokuri ,  Kunihiro Inui ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Toshitsugu Hosokawa ,  Takaaki Ishii

IPC: B05D5/10 ,  C09J7/02 ,  C09J133/08

CPC classification number: C09J7/0217 ,  C09J7/385 ,  C09J133/08 ,  C09J2201/622 ,  Y10T428/1476

Abstract: An object of the present invention is to provide a method for manufacturing an optical film-forming pressure-sensitive adhesive layer, which can reduce the problem with visibility without a reduction in productivity, such as a reduction in coating speed. A method for manufacturing an optical film-forming pressure-sensitive adhesive layer, comprising the steps of: (1) applying, to a release film, an aqueous dispersion-type pressure-sensitive adhesive including an aqueous dispersion containing a (meth)acryl-based polymer in the form of an aqueous dispersion; and (2) drying the applied aqueous dispersion-type pressure-sensitive adhesive, wherein the aqueous dispersion-type pressure-sensitive adhesive has a viscosity of 0.01 Pa·s to 0.1 Pa·s at a shear rate of 4,000 (l/s), the optical film-forming pressure-sensitive adhesive layer formed on the release film has a surface roughness (Ra) of 10 nm to 40 nm, and the optical film-forming pressure-sensitive adhesive layer has a haze of 1% or less.

Abstract translation: 本发明的目的是提供一种制造光学成膜压敏粘合剂层的方法，其可以在不降低生产率的情况下降低可见度的问题，例如涂布速度的降低。 一种光学成膜压敏粘合剂层的制造方法，其特征在于，包括以下步骤：（1）向脱模膜涂布含有（甲基）丙烯酸系粘合剂层的水性分散体的水性分散型压敏粘合剂， 基于水的分散体形式的聚合物; 和（2）干燥所施加的水性分散型压敏粘合剂，其中水分散型压敏粘合剂在剪切速率为4000（l / s）时具有0.01Pa·s至0.1Pa·s的粘度， 形成在剥离膜上的光学膜形成用粘合剂层的表面粗糙度（Ra）为10nm〜40nm，光学膜形成用粘合剂层的雾度为1％以下。

公开(公告)号：US20150203720A1

公开(公告)日：2015-07-23

申请号：US14673465

申请日：2015-03-30

Applicant: NITTO DENKO CORPORATION

Inventor： Kunihiro Inui ,  Masayuki Satake ,  Toshitsugu Hosokawa ,  Takaaki Ishii ,  Yoshiaki Kitani ,  Toshitaka Takahashi ,  Yousuke Makihata ,  Yoshihiro Kitamura

IPC: C09J7/02 ,  B05D3/00 ,  B05D5/00

CPC classification number: B05D5/00 ,  B05D3/007 ,  C09J7/385 ,  C09J2201/622 ,  C09J2203/318 ,  Y10T428/28 ,  Y10T428/2891

Abstract: A pressure-sensitive adhesive optical film of the invention includes an optical film; and a pressure-sensitive adhesive layer placed on at least one side of the optical film, wherein the pressure-sensitive adhesive layer is a product formed by applying a pressure-sensitive adhesive coating liquid having a dissolved oxygen concentration of 0.02 to 3 mg/L and then drying the pressure-sensitive adhesive coating liquid. The pressure-sensitive adhesive optical film can satisfy heat durability, humidity durability, and high contrast.

Abstract translation: 本发明的粘合型光学膜包括光学膜; 以及设置在所述光学膜的至少一侧的压敏粘合剂层，其中，所述压敏粘合剂层是通过涂布溶解氧浓度为0.02〜3mg / L的压敏粘合剂涂布液而形成的产品 然后干燥压敏粘合剂涂布液。 粘合型光学薄膜可以满足耐热性，耐湿性，高对比度。