公开(公告)号：US11560499B2

公开(公告)日：2023-01-24

申请号：US16465475

申请日：2017-11-29

Applicant: NITTO DENKO CORPORATION

Inventor： Yoshiko Kira ,  Kensuke Tani ,  Ryoko Asai ,  Kayo Shimokawa ,  Kenichi Okada

IPC: C09J153/02 ,  C09J7/32 ,  C09J11/06 ,  C09J11/08 ,  C09J201/00 ,  C09J7/20 ,  C09J7/00 ,  C09J133/00 ,  C09J121/00 ,  C08G18/76 ,  C09J123/22 ,  C09J133/10 ,  C09J135/00

Abstract: The present invention relates to an adhesive composition containing a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having no functional group which reacts with the moisture-curable component, and a water content of the base polymer after storage at 25° C. and 50% RH for 24 hours is 0.1% by weight or less, and wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

公开(公告)号：US11174415B2

公开(公告)日：2021-11-16

申请号：US15773586

申请日：2016-10-31

Applicant: NITTO DENKO CORPORATION

Inventor： Akiko Yoshida ,  Kenichi Okada ,  Koji Akazawa

IPC: C09J5/04 ,  C09J163/00 ,  C09J7/30 ,  C09J7/10 ,  C09J7/40 ,  C09J11/06

Abstract: An adhesion method including: a step (1), disposing a stickable-curable adhesive layer on a first adherend; a step (2), disposing a curing agent layer on a second adherend, the curing agent layer being able to cure the stickable-curable adhesive layer by contacting and reacting with the stickable-curable adhesive layer; and a step (3), bringing the stickable-curable adhesive layer into contact with the curing agent layer so that they are sandwiched by the first adherend and the second adherend.

公开(公告)号：US10570320B2

公开(公告)日：2020-02-25

申请号：US15551062

申请日：2016-03-07

Applicant: NITTO DENKO CORPORATION

Inventor： Kensuke Tani ,  Mizuho Nagata ,  Kaori Mizobata ,  Masatsugu Soga ,  Ryota Masuda ,  Masayuki Satake ,  Kenichi Okada ,  Naofumi Kosaka ,  Keisuke Shimokita

IPC: C09J7/38 ,  C09D7/45 ,  C09J7/20

Abstract: Provided is an adhesive member to be adhesively fixed through pressure which has both position adjustability and adhesiveness and is capable of producing a sufficient adhesive strength in addition to the position adjustability. The adhesive member comprises a support, a pressure-sensitive adhesive layer provided on one surface of the support, and a plurality of protrusion elements arranged, in spaced-apart relation to each other, on a principal surface of the pressure-sensitive adhesive layer on a side opposite to the support. Each of the protrusion elements is composed of an aggregation of a plurality of cohesive particles, wherein the adhesive member has a frictional force of 0.4 N/cm2 or less, with respect to a stainless steel plate serving as an adherend, as measured when the protrusion elements are in contact with a surface of the adherend, and a shear adhesive strength of 45 N/cm2 or more.

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：US12071573B2

公开(公告)日：2024-08-27

申请号：US16967504

申请日：2019-01-28

Applicant: Nitto Denko Corporation

Inventor： Naofumi Kosaka ,  Yosuke Shimizu ,  Satoshi Honda ,  Taiki Shimokuri ,  Shou Takarada ,  Masayuki Satake ,  Kenichi Okada ,  Atsushi Takashima ,  Ginji Mizuhara ,  Masayuki Okamoto ,  Ryoko Asai

IPC: C09J7/38 ,  B32B7/06 ,  B32B27/18 ,  B32B27/30 ,  B32B37/12 ,  B32B37/18 ,  B32B38/10 ,  C09J11/06 ,  C09J11/08 ,  C09J133/08

CPC classification number: C09J7/385 ,  B32B7/06 ,  B32B27/18 ,  B32B27/308 ,  B32B37/12 ,  B32B37/182 ,  B32B38/10 ,  C09J11/06 ,  C09J11/08 ,  C09J133/08 ,  B32B2037/1276 ,  B32B2307/728 ,  B32B2333/12 ,  B32B2405/00 ,  C09J2301/408 ,  C09J2301/502 ,  C09J2433/00 ,  C09J2467/006

Abstract: Provided is a PSA sheet having a PSA layer. The PSA layer includes a layer A forming at least one surface thereof. The PSA sheet has an adhesive strength N0 of 2.0 N/10 mm or greater, after one day at room temperature following application of the layer A side to a surface of an alkaline float glass plate as an adherend having a contact angle of 5°-10° with distilled water; has an N1 to N0 reduction rate of 30% or lower, wherein N1 is a water-resistant adhesive strength measured after stored at room temperature for one day, immersed in water for 30 minutes, taken out from the water and then residual water is wiped off, and has an N2 to NO reduction rate of 40% or higher, wherein N2 is a water-peel strength measured after stored at room temperature for one day, 20 μL distilled water is dropped onto the adherend and is allowed to enter a PSA layer/adherend interfacial edge. N2 is measured at a tensile speed of 300 mm/min at a peel angle of 180°.

公开(公告)号：US11970644B2

公开(公告)日：2024-04-30

申请号：US16967517

申请日：2019-01-28

Applicant: Nitto Denko Corporation

Inventor： Naofumi Kosaka ,  Yosuke Shimizu ,  Satoshi Honda ,  Taiki Shimokuri ,  Shou Takarada ,  Masayuki Satake ,  Kenichi Okada ,  Atsushi Takashima ,  Ginji Mizuhara

IPC: B32B43/00 ,  B32B7/06 ,  B32B7/12 ,  C09J5/02 ,  C09J7/38 ,  C09J133/08

CPC classification number: C09J7/385 ,  B32B7/06 ,  B32B7/12 ,  B32B43/006 ,  C09J5/02 ,  C09J133/08 ,  B32B2307/42 ,  C09J2301/312 ,  C09J2301/416 ,  C09J2301/502 ,  Y10T156/1111 ,  Y10T156/1126 ,  Y10T156/1928

Abstract: Provided is a method for peeling a PSA sheet adhered on a polarizing plate. The PSA sheet has a PSA layer. The PSA layer includes a layer A forming at least one surface of the PSA layer. Of the polarizing plate, the surface to which the PSA sheet is adhered is corona-treated or plasma-treated. The peeling method includes a water-peel step in which the PSA sheet is peeled from the polarizing plate, in a state where an aqueous liquid exits at the interface between the polarizing plate and the PSA sheet at the front line of peeling the PSA sheet from the polarizing plate, with the aqueous liquid allowed to further enter the interface following the movement of the peel front line.

公开(公告)号：US11649379B2

公开(公告)日：2023-05-16

申请号：US17474253

申请日：2021-09-14

Applicant: NITTO DENKO CORPORATION

Inventor： Akiko Yoshida ,  Kenichi Okada ,  Koji Akazawa

IPC: C09J5/04 ,  C09J163/00 ,  C09J7/30 ,  C09J7/10 ,  C09J7/40 ,  C09J11/06

CPC classification number: C09J5/04 ,  C09J7/10 ,  C09J7/30 ,  C09J7/403 ,  C09J7/405 ,  C09J163/00 ,  C09J11/06 ,  C09J2463/00

Abstract: An adhesion method including: a step (1), disposing a stickable-curable adhesive layer on a first adherend; a step (2), disposing a curing agent layer on a second adherend, the curing agent layer being able to cure the stickable-curable adhesive layer by contacting and reacting with the stickable-curable adhesive layer; and a step (3), bringing the stickable-curable adhesive layer into contact with the curing agent layer so that they are sandwiched by the first adherend and the second adherend.

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：US11274231B2

公开(公告)日：2022-03-15

申请号：US16069259

申请日：2017-01-10

Applicant: NITTO DENKO CORPORATION

Inventor： Akiko Tanaka ,  Keisuke Shimokita ,  Kenichi Okada ,  Masayuki Minakata

IPC: C09J7/10 ,  C09J11/06 ,  C09J201/00 ,  C09J7/38 ,  C09J7/30 ,  C09J163/00 ,  C09J7/40

Abstract: A stickable-curable adhesive sheet bonds a deformation/conversion device to an adherend. The stickable-curable adhesive sheet contains a stickable-curable adhesive component and a curing component curing the stickable-curable adhesive component. The stickable-curable adhesive component has pressure-sensitive adhesiveness before curing and the initial tensile elastic modulus at 25° C. of the stickable-curable adhesive sheet after curing is 5×108 Pa or more.

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。