公开(公告)号：US10265927B2

公开(公告)日：2019-04-23

申请号：US15543211

申请日：2016-07-11

Applicant: NITTO DENKO CORPORATION

Inventor： Hirofumi Katami ,  Atsushi Yasui

IPC: G02B1/111 ,  G02B1/00 ,  G06F3/041 ,  C09J7/38 ,  C09J7/00 ,  C09J201/00 ,  C09J9/00 ,  B32B7/02 ,  B32B3/26 ,  G09F9/00 ,  C09F9/00 ,  H01J37/26 ,  C01B11/00

Abstract: The present invention provides a transparent electroconductive layer-equipped 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 transparent electroconductive layer-equipped 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 transparent electroconductive layer-equipped 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：US10228496B2

公开(公告)日：2019-03-12

申请号：US15899660

申请日：2018-02-20

Applicant: NITTO DENKO CORPORATION

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

IPC: G02B5/30 ,  G02B1/16 ,  B32B23/08 ,  B32B23/20 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36 ,  C09J133/06 ,  G02B1/14 ,  G02B1/08 ,  G02F1/1335 ,  C09J7/38 ,  C09J7/22 ,  C09J7/29 ,  C08K3/24 ,  C08K3/105

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：US20190031815A1

公开(公告)日：2019-01-31

申请号：US16148287

申请日：2018-10-01

Applicant: NITTO DENKO CORPORATION

Inventor： Yuusuke Toyama ,  Arata Fujihara ,  Akiko Sugino ,  Atsushi Yasui ,  Masayuki Satake ,  Mizue Nagata ,  Tomoyuki Kimura

IPC: C08G18/71 ,  C08G18/62

Abstract: A pressure-sensitive adhesive composition for an optical film of the present invention comprises a (meth)acryl-based polymer(A): and a polyether compound (B) having a polyether skeleton and a reactive silyl group represented by formula (1): —SiRaM3-a at at least one terminal, wherein R represents a monovalent organic group having 1 to 20 carbon atoms and optionally having a substituent; M represents a hydroxyl group or a hydrolyzable group; and represents an integer of 1 to 3, provided that in cases where two or more R groups, R groups is the same or different, and in cases where two or more M groups, M groups is the same or different. The pressure-sensitive adhesive composition for an optical film is capable of forming a pressure-sensitive adhesive layer having reworkability that enables an optical film to be easily peeled off from a liquid crystal panel or the like with no adhesive residue and satisfactory durability that prevents a bonded optical film from peeling or lifting.

公开(公告)号：US10072184B2

公开(公告)日：2018-09-11

申请号：US14890470

申请日：2015-01-16

Applicant: NITTO DENKO CORPORATION

Inventor： Hirofumi Katami ,  Toru Umemoto ,  Hiroyuki Takao ,  Takahiro Nonaka ,  Atsushi Yasui ,  Takami Hikita

IPC: C09J7/02 ,  C09J201/00 ,  C09J9/00 ,  C09J7/20 ,  C09J7/22 ,  C09J7/24 ,  C09J7/25 ,  C08K3/22 ,  C08K7/18

CPC classification number: C09J7/255 ,  C08K3/22 ,  C08K7/18 ,  C08K2003/2241 ,  C08K2003/2244 ,  C08K2201/005 ,  C09J7/20 ,  C09J7/22 ,  C09J7/241 ,  C09J9/00 ,  C09J201/00 ,  C09J2203/318 ,  G02F2202/28

Abstract: A pressure-sensitive adhesive sheet comprises a support and a transparent pressure-sensitive adhesive layer on the support. The pressure-sensitive adhesive layer comprises a base adhesive zone made essentially of a transparent base pressure-sensitive adhesive material and formed over a given range from a first principal surface of the pressure-sensitive adhesive layer in a thickness direction of the pressure-sensitive adhesive layer, and a transparent, adherent, refractive index-adjusting zone formed over a given range from a second principal surface of the pressure-sensitive adhesive layer in the thickness direction, and wherein the refractive index-adjusting zone has a refractive index greater than a refractive index of the base pressure-sensitive adhesive material.

公开(公告)号：US09841545B2

公开(公告)日：2017-12-12

申请号：US14876946

申请日：2015-10-07

Applicant: NITTO DENKO CORPORATION

Inventor： Masaki Mizutani ,  Shou Takarada ,  Atsushi Yasui

IPC: B32B7/12 ,  G02B5/30 ,  C09J7/02

CPC classification number: G02B5/3033 ,  C09J7/38 ,  C09J7/405 ,  C09J2201/134 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2467/006

Abstract: The optical film with a pressure sensitive adhesive on both sides includes a first pressure sensitive adhesive layer having a thickness of 3 μm to 30 μm on first main surface of an optical film, and a second pressure sensitive adhesive layer having a thickness of 50 μm or more on second main surface of the optical film. A first protective sheet and a second protective sheet are releasably attached on the first pressure sensitive adhesive layer and the second pressure sensitive adhesive layer, respectively. The residual stress of the second pressure sensitive adhesive layer S2 (N/cm2), the thickness of the first protective sheet Y (μm); and the thickness of the second protective sheet Z (μm) satisfy the following relationship: 20≦Y≦80; 45≦Z; and Y+0.17 Z+10.6 S2≧63.

公开(公告)号：US20160185083A1

公开(公告)日：2016-06-30

申请号：US14978903

申请日：2015-12-22

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Yasui ,  Shou Takarada ,  Masaki Mizutani ,  Hirofumi Katami ,  Shinya Yamamoto

IPC: B32B7/12 ,  G02F1/1335 ,  G02B5/30 ,  B32B27/08 ,  B32B27/30

CPC classification number: B32B7/12 ,  B32B3/08 ,  B32B9/045 ,  B32B17/064 ,  B32B23/08 ,  B32B27/08 ,  B32B27/28 ,  B32B27/304 ,  B32B27/308 ,  B32B27/32 ,  B32B27/36 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/21 ,  B32B2307/306 ,  B32B2307/4026 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2307/514 ,  B32B2307/542 ,  B32B2307/732 ,  B32B2457/202 ,  C09J7/38 ,  C09J7/385 ,  C09J7/40 ,  C09J133/08 ,  C09J133/10 ,  C09J133/12 ,  C09J2201/606 ,  G02B5/3033 ,  G02F1/133528 ,  G02F2202/28

Abstract: A pressure-sensitive-adhesive-layer-attached polarizing film, comprising: a polarizing film which is provided nearest to a viewer-side of an image display device among at least one polarizing film used in the device, a pressure-sensitive adhesive layer A arranged at a viewer-side of the polarizing film, and a pressure-sensitive adhesive layer B arranged at a side of the polarizing film that is opposite to the viewer-side of the polarizing film; wherein the pressure-sensitive adhesive layer A is a multiple pressure-sensitive adhesive layer having at least a first pressure-sensitive adhesive layer (a) and a second pressure-sensitive adhesive layer (b) in an order of the recited layers from the outermost surface side of the pressure-sensitive adhesive layer A.

Abstract translation: 1.一种带有压敏粘合剂层的偏光膜，其特征在于，包括：在所述装置中使用的至少一种偏光膜中最靠近图像显示装置的观察者侧设置的偏振膜，压敏粘合剂层A 布置在偏振膜的观察者侧，以及布置在偏振膜的与偏振膜的观察者侧相对的一侧的压敏粘合剂层B; 其中，所述粘合剂层A为具有至少第一粘合剂层（a）和第二粘合剂层（b）的多层压敏粘合剂层，所述第二粘合剂层从所述最外层 压敏粘合剂层A的表面侧。

公开(公告)号：US09255216B2

公开(公告)日：2016-02-09

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

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.

公开(公告)号：US09169423B2

公开(公告)日：2015-10-27

申请号：US14156907

申请日：2014-01-16

Applicant: NITTO DENKO CORPORATION

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

IPC: G02B5/30 ,  B05D5/00 ,  C09J7/02

CPC classification number: C09J7/026 ,  B05D5/10 ,  C09J7/385 ,  G02B5/3025 ,  G02B5/3033 ,  Y10T156/10 ,  Y10T428/1059

Abstract: A pressure-sensitive adhesive optical film of the invention comprises an optical film and a pressure-sensitive adhesive layer provided on the optical film, wherein the pressure-sensitive adhesive layer has a thickness (μm) standard deviation of 0.12 μm or less. The pressure-sensitive adhesive optical film makes it possible to reduce the problem of visible unevenness caused by a pressure-sensitive adhesive layer.

公开(公告)号：US09134460B2

公开(公告)日：2015-09-15

申请号：US14344861

申请日：2013-04-12

Applicant: NITTO DENKO CORPORATION

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

IPC: G02B1/04 ,  C09J171/00 ,  C09J175/04 ,  C09J183/04 ,  G02B5/30 ,  C08G18/62 ,  C08G18/80 ,  C09J133/06 ,  C09J7/02 ,  C08K5/00

CPC classification number: G02B1/04 ,  C08G18/6229 ,  C08G18/6254 ,  C08G18/8029 ,  C08G2170/40 ,  C08K5/0075 ,  C09J7/385 ,  C09J133/066 ,  C09J171/00 ,  C09J175/04 ,  C09J183/04 ,  C09J2203/318 ,  C09J2205/102 ,  G02B5/30 ,  G02B5/305 ,  Y10T428/2848 ,  Y10T428/2891 ,  C08F2220/1825 ,  C08F220/20 ,  C08F220/06

Abstract: A pressure-sensitive adhesive composition comprising (A) a (meth)acryl-based polymer, (B1) an ionic compound comprising a cation component and an anion component having an organic group of three or more carbon atoms, and (B2) an ionic compound comprising a cation component and an anion component having an organic group of two or less carbon atoms. The anion component having an organic group of three or more carbon atoms is preferably at least one of anion components represented by formula (1): (CnF2n+1SO2)2N−  (1) in formula (1), n is an integer of 3 to 10, formula (2): CF2(CmF2mSO2)2N−  (2) in formula (2), m is an integer of 2 to 10, formula (3): −O3S(CF2)lSO3−  (3) in formula (3), l is an integer of 3 to 10, and formula (4): (CpF2p+1SO2)N−(CqF2q+1SO2)  (4) in formula (4), p and q are each an integer of 2 to 10.

Abstract translation: 一种压敏粘合剂组合物，其包含（A）（甲基）丙烯酸类聚合物，（B1）包含阳离子组分的离子化合物和具有三个或更多个碳原子的有机基团的阴离子组分和（B2）离子 包含阳离子组分和具有两个或更少碳原子的有机基团的阴离子组分的化合物。 具有三个以上碳原子的有机基团的阴离子成分优选为式（1）表示的阴离子成分中的至少一种：式（1）中的（CnF2n + 1SO2）2N-（1），n为3的整数 式（2）中的式（2）：式（2）中的CF 2（CmF 2 m SO 2）2 N-（2），m为2〜10的整数，式（3）：式（3）中的-O 3 S（CF 2） 3）中，l为3〜10的整数，式（4）中，式（4）中的（CpF 2 p + 1 SO 2）N-（C q F 2 q + 1 SO 2）（4）中，p和q各自为2〜10的整数 。

公开(公告)号：US20150070603A1

公开(公告)日：2015-03-12

申请号：US14479998

申请日：2014-09-08

Applicant: NITTO DENKO CORPORATION

Inventor： Mizue Yamasaki ,  Atsushi Yasui ,  Yuusuke Toyama

IPC: G02F1/1335 ,  G02F1/1343 ,  C09J133/08 ,  G02F1/1333

CPC classification number: C09J133/08 ,  C08F220/18 ,  C09D133/066 ,  C09D139/06 ,  C09J2201/606 ,  G02F1/1335 ,  Y10T428/1041 ,  Y10T428/1055 ,  Y10T428/1059 ,  Y10T428/264 ,  C08F2220/1825 ,  C08F226/10 ,  C08F220/20 ,  C08F220/06 ,  C08F2220/1858 ,  C08F2222/1053

Abstract: A pressure-sensitive adhesive layer-bearing polarizing film for a transparent conductive coating, includes an iodine-based polarizing film and a pressure-sensitive adhesive layer placed on at least one side of the polarizing film, wherein the iodine-based polarizing film includes an iodine-based polarizer containing 1 to 14% by weight of iodine and/or iodide ions and having a thickness of 2 to 40 μm and a transparent protective film provided on at least one side of the polarizer and having a water-vapor permeability of 1,000 g/(m2·24 hours) or less at 60° C. and 90% R.H., and the pressure-sensitive adhesive layer has a saturated water content of 3.5% by weight or less at 60° C. and 90% R.H.

Abstract translation: 一种用于透明导电涂层的压敏粘合剂层偏振膜包括放置在偏振膜的至少一侧上的碘系偏振膜和粘合剂层，其中碘系偏振膜包括 含有1〜14重量％的碘和/或碘离子并且具有2〜40μm的厚度的碘系偏振片，以及设置在偏振片的至少一侧的透明保护膜，水蒸气透过度为1000 在60℃，90％RH下，g /（m2·24小时）以下，在60℃，90％RH下，粘合剂层的饱和含水量为3.5重量％以下