公开(公告)号：US20160195644A1

公开(公告)日：2016-07-07

申请号：US15068995

申请日：2016-03-14

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Yuusuke Toyama ,  Tomoyuki Kimura ,  Masayuki Satake ,  Shusaku Goto ,  Takeharu Kitagawa ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

IPC: G02B1/16 ,  B32B27/08 ,  G02F1/1335 ,  B32B27/30 ,  G02B1/14 ,  G02B5/30

CPC classification number: G02B1/16 ,  B32B23/08 ,  B32B23/20 ,  B32B27/08 ,  B32B27/306 ,  B32B27/308 ,  B32B27/36 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2250/40 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/21 ,  B32B2307/4026 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2307/516 ,  B32B2307/702 ,  B32B2307/704 ,  B32B2307/706 ,  B32B2307/708 ,  B32B2457/202 ,  C08K3/105 ,  C08K3/24 ,  C09J7/22 ,  C09J7/29 ,  C09J7/38 ,  C09J133/066 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2433/00 ,  G02B1/08 ,  G02B1/14 ,  G02B5/3025 ,  G02B5/3033 ,  G02B5/305 ,  G02F1/133533 ,  C08F2220/1825 ,  C08F2220/185 ,  C08F220/20 ,  C08F2220/301 ,  C08F220/06

Abstract: A pressure-sensitive adhesive layer-attached polarizing film of the invention includes: a polarizing film; and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film includes 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 where the transparent protective film is absent, and the pressure-sensitive adhesive layer is made of a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an alkali metal salt (B). The pressure-sensitive adhesive layer-attached polarizing film has a pressure-sensitive adhesive layer with an antistatic function and satisfactory durability and whose optical properties are less likely to be degraded.

公开(公告)号：US20150368525A1

公开(公告)日：2015-12-24

申请号：US14768010

申请日：2013-11-07

Applicant: NITTO DENKO CORPORATION

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

IPC: C09J133/08 ,  C09J7/00 ,  C09J11/06 ,  G02B5/30 ,  C09J9/00

CPC classification number: C09J133/08 ,  C08K5/0075 ,  C08K5/43 ,  C08K5/435 ,  C08K5/5435 ,  C09J7/00 ,  C09J7/22 ,  C09J7/38 ,  C09J9/00 ,  C09J11/06 ,  C09J133/066 ,  C09J133/14 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2423/006 ,  C09J2433/00 ,  C09J2433/006 ,  G02B5/3025 ,  Y10T428/266 ,  Y10T428/2848

Abstract: A pressure-sensitive adhesive composition for use on an acryl- or cycloolefin-based polarizing film, comprising: a hydroxyl group-containing (meth)acryl-based polymer (A) containing a monomer unit derived from a hydroxyl group-containing monomer; and an ionic compound (B) comprising an anion component and a cation component, wherein the anion component has an organic group having 2 or more carbon atoms.

Abstract translation: 一种用于丙烯酸或环烯烃类偏振膜的压敏粘合剂组合物，其包含：含有源自含羟基单体的单体单元的含羟基（甲基）丙烯酸系聚合物（A） 和含有阴离子成分和阳离子成分的离子性化合物（B），其中所述阴离子成分具有2个以上碳原子的有机基团。

公开(公告)号：US20140272200A1

公开(公告)日：2014-09-18

申请号：US14197470

申请日：2014-03-05

Applicant: NITTO DENKO CORPORATION

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

IPC: C09J7/02 ,  G02F1/1335

CPC classification number: G02F1/133528 ,  B32B2457/20 ,  B32B2457/202 ,  B32B2457/204 ,  B32B2457/206 ,  C09J7/29 ,  C09J133/066 ,  C09J133/08 ,  C09J133/10 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2433/00 ,  G02F2202/28 ,  Y10T428/1059 ,  Y10T428/1077 ,  Y10T428/1082 ,  Y10T428/263 ,  Y10T428/265 ,  Y10T428/2891 ,  C08F2220/1825 ,  C08F220/20 ,  C08F220/06

Abstract: A pressure-sensitive adhesive layer-attached polarizing film contains a polarizing film containing a polarizer and a transparent protective film provided on at least one side of the polarizer, the polarizing film having a total thickness of 100 μm or less. A pressure-sensitive adhesive layer is provided on the polarizing film and made from a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer and an antioxidant.

Abstract translation: 带有粘合剂层的偏光膜含有偏振片，该偏光膜含有设置在偏振片的至少一面上的偏振片和透明保护膜，偏振膜的总厚度为100μm以下。 在偏光膜上设置压敏粘合剂层，由含有（甲基）丙烯酸类聚合物和抗氧化剂的压敏粘合剂组合物制成。

公开(公告)号：US20200307155A1

公开(公告)日：2020-10-01

申请号：US16308873

申请日：2016-06-14

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Shou Takarada ,  Shinya Yamamoto ,  Ryohei Sawazaki

IPC: B32B7/12 ,  B32B27/36 ,  B32B27/16 ,  B32B17/06 ,  C09J7/38 ,  C09J7/10 ,  G02B5/30

Abstract: A double-sided pressure-.sensitive-adhesive-layer-attached polarizing film is disclosed having a polarizing film nearest to a viewer-side of an nnage display device, a pressure-sensitive adhesive layer A located on the viewer-side of the polarizing film, and a pressure-sensitive adhesive layer B on a side of the polarizing film that is opposite to the pressure-sensitive adhesive layer A. The pressure-sensitive adhesive layers A and B are equipped with separators SA and SB, respectively. The polarizing film is a single-side protected polarizing film having a polarizer of 15 pm or less thickness and having a transparent protective film on only a single side of the polarizer. The pressure-sensitive adesive layer B is located on the transparent protective film side of the single-side protected polarizing film. The pressure-sensitive adhesive layer A has a thickiess of 25 μm or more: and the pressure-sensitive adhesive layer B has a thickness of 25 μm or less.

公开(公告)号：US10551540B2

公开(公告)日：2020-02-04

申请号：US14900568

申请日：2014-06-20

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu Kitagawa ,  Yuki Kida ,  Shinsuke Akizuki ,  Atsushi Yasui ,  Yusuke Toyama ,  Takaaki Ishii

IPC: C09J133/06 ,  C09J5/06 ,  C09J7/38 ,  C09J7/40 ,  C09J7/22 ,  C08L33/06 ,  C08K5/13 ,  C08K5/14 ,  G02B5/30 ,  B32B7/12 ,  C09J7/10 ,  G02F1/1335 ,  C08K5/00

Abstract: Provided are a separator-attached adhesive layer structure which comprises a separator having moderate light peelability with respect to an adhesive layer and exhibits excellent processability and durability, and a production method therefor. The production method comprises: a first step of forming a layer of an adhesive composition containing a (meth)acryl-based polymer, a peroxide and a phenolic antioxidant, on a release treatment surface of a separator subjected to a release treatment; and a second step of, after completion of the first step, heating the adhesive composition to cause cross-linking therein so as to be formed as an adhesive layer.

公开(公告)号：US10369768B2

公开(公告)日：2019-08-06

申请号：US15552706

申请日：2016-07-11

Applicant: NITTO DENKO CORPORATION

Inventor： Hirofumi Katami ,  Atsushi Yasui

IPC: B32B7/12 ,  B32B7/02 ,  C08K3/22 ,  G06F3/041 ,  B32B27/00 ,  C03C27/10 ,  C09J201/00 ,  C09J7/10

Abstract: The present invention provides a cover element having a pressure-sensitive adhesive sheet preliminarily laminated thereto, wherein the pressure-sensitive adhesive sheet comprises a pressure-sensitive adhesive layer in which a refractive index adjustment zone having a refractive index greater than that of a base pressure-sensitive adhesive material thereof is formed over a given range from a surface of the pressure-sensitive adhesive layer in a thickness direction thereof, whereby: in a lamination process of a customer which is a supply destination of the cover element, it becomes possible to eliminate a need to distinguish between obverse and reverse sides of the pressure-sensitive adhesive sheet itself; and, when the cover element is bonded to an optical element through the pressure-sensitive adhesive layer, it becomes possible to suppress internal reflection in a laminate formed of these optical elements.

公开(公告)号：US10310333B2

公开(公告)日：2019-06-04

申请号：US15579645

申请日：2016-06-14

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Shou Takarada ,  Shinya Yamamoto ,  Ryohei Sawazaki

IPC: G06F3/041 ,  G02F1/1337 ,  B32B27/00 ,  B32B27/30 ,  C09J133/06 ,  G02F1/1333 ,  G02F1/1335 ,  G02B5/30 ,  H01L51/52 ,  C09J133/08 ,  C09J7/38 ,  C09J7/22 ,  G02B1/16

Abstract: A double-sided pressure-sensitive adhesive-layer-attached polarizing film has a polarizing film nearest to a viewer-side of an image display device among at least one polarizing film, a pressure-sensitive adhesive layer A located on the viewer-side, and a pressure-sensitive adhesive layer B on a side of the polarizing film that is opposite to the pressure-sensitive adhesive layer A. The pressure-sensitive adhesive layers A and B are equipped with separators SA and SB, respectively. The polarizing film is a single-side protected polarizing film having a polarizer of 15 μm or less thickness and having a transparent protective film on only a single side of the polarizer. The pressure-sensitive adhesive layer B is located on the polarizer side of the single-side protected polarizing film. The pressure-sensitive adhesive layer A has a thickness of 25 μm or more; and the pressure-sensitive adhesive layer B has a thickness of 25 μm or less.

公开(公告)号：US10259193B2

公开(公告)日：2019-04-16

申请号：US15545069

申请日：2016-07-11

Applicant: NITTO DENKO CORPORATION

Inventor： Hirofumi Katami ,  Toru Umemoto ,  Hiroyuki Takao ,  Atsushi Yasui

IPC: B32B7/02 ,  H01B5/14 ,  B32B17/10 ,  B32B7/12 ,  H01B1/08 ,  G02B5/02

Abstract: In the case where a pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer having a refractive index adjustment zone is provided in such a manner that two PET separators are laminated to opposite surfaces of the pressure-sensitive adhesive layer, it is difficult to distinguish between obverse and reverse sides of the pressure-sensitive adhesive sheet itself. The present invention is directed to solving the above problems and, specifically, to offering a pressure-sensitive adhesive sheet having a refractive index adjustment zone capable of being easily produced at low cost, in a state in which it is preliminarily laminated with a substrate provided with an electroconductive layer, thereby making it possible to resolve complexity in handling (to easily distinguish between one surface defined by the refractive index adjustment zone and the other surface defined by the remaining zone).

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.