公开(公告)号：US10569505B2

公开(公告)日：2020-02-25

申请号：US15569244

申请日：2016-07-20

申请人： NITTO DENKO CORPORATION

发明人： Hirofumi Katami ,  Atsushi Yasui

IPC分类号： B32B7/02 ,  C09J11/04 ,  C09J201/00 ,  G02B5/30 ,  C09J7/20 ,  B32B7/12

摘要： Provided is a polarizing film laminate comprising a pressure-sensitive adhesive layer, and a polarizing film wherein the adhesive layer comprises: a base adhesive zone made of a transparent base pressure-sensitive adhesive material and formed over a given range from one principal surface of the adhesive layer in a thickness direction of the adhesive layer; and a refractive index adjustment zone formed over a given range from the other principal surface of the adhesive layer in the thickness direction and comprising the base pressure-sensitive adhesive material and material infiltrated into the base pressure-sensitive adhesive material and different from the base pressure-sensitive adhesive material, the refractive index adjustment zone having an average refractive index greater than a refractive index of the base pressure-sensitive adhesive material, and wherein the base pressure-sensitive adhesive material zone of the pressure-sensitive adhesive layer is located on the side of the polarizing film.

公开(公告)号：US20190154898A1

公开(公告)日：2019-05-23

申请号：US16241286

申请日：2019-01-07

申请人： NITTO DENKO CORPORATION

发明人： Atsushi Yasui ,  Yuusuke Toyama ,  Shinsuke Akizuki

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

摘要： 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.

公开(公告)号：US20180044556A1

公开(公告)日：2018-02-15

申请号：US15729412

申请日：2017-10-10

申请人： Nitto Denko Corporation

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

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

CPC分类号： 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

摘要： 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

申请人： NITTO DENKO CORPORATION

发明人： Atsushi Yasui ,  Yuusuke Toyama ,  Shinsuke Akizuki

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

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

摘要： 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.

摘要翻译： 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：US20150293287A1

公开(公告)日：2015-10-15

申请号：US14424899

申请日：2013-08-27

申请人： NITTO DENKO CORPORATION

发明人： Atsushi Yasui ,  Yuusuke Toyama ,  Arata Fujihara ,  Tomoyuki Kimura

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

摘要： 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.

摘要翻译： 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：US10852455B2

公开(公告)日：2020-12-01

申请号：US14891492

申请日：2015-01-16

申请人： NITTO DENKO CORPORATION

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

IPC分类号： G02B1/111 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  B32B27/06 ,  B32B7/02 ,  B32B37/12 ,  C09J7/38 ,  C09J11/02 ,  C09J11/04 ,  C09J5/02 ,  B29D11/00

摘要： A laminate of optical elements comprises a transparent first optical element, a second optical element, and a transparent pressure-sensitive adhesive layer for bonding the first optical element to the second optical element. The pressure-sensitive adhesive layer comprises a base adhesive zone, a transparent refractive index-adjusting zone. The base adhesive zone is 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 facing the first optical element, in a thickness direction of the pressure-sensitive adhesive layer. The a transparent, adherent, refractive index-adjusting zone is formed over a given range from a second principal surface of the pressure-sensitive adhesive layer facing the second optical element.

公开(公告)号：US10087347B2

公开(公告)日：2018-10-02

申请号：US14479998

申请日：2014-09-08

申请人： NITTO DENKO CORPORATION

发明人： Mizue Yamasaki ,  Atsushi Yasui ,  Yuusuke Toyama

IPC分类号： G02F1/1335 ,  C09J133/08 ,  C09D133/06 ,  C09D139/06 ,  C08F220/18

摘要： 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.

公开(公告)号：US10023766B2

公开(公告)日：2018-07-17

申请号：US15545124

申请日：2016-07-11

申请人： NITTO DENKO CORPORATION

发明人： Hirofumi Katami ,  Toru Umemoto ,  Hiroyuki Takao ,  Atsushi Yasui

IPC分类号： B32B7/12 ,  C09J7/02 ,  B05D1/28 ,  C09J201/00 ,  C23C14/08

摘要： As one sensor layer structure for a capacitive touch panel, a layer structure in which a transparent electroconductive layer is formed on each of opposite surfaces of a single film substrate, so-called GFD structure, is used. In the structure, for sufficiently suppressing internal reflection from the transparent electroconductive layer, it is necessary to employ a technique of forming one or more refractive index adjustment (IM) layers on each of the opposite surfaces of the single film substrate. This causes a problem that production yield is likely to deteriorate, and a production cost is increased. The present invention is directed to solving such a problem and, specifically, to laminating a refractive index adjustment zone-formed pressure-sensitive adhesive layer capable of being produced easily and at low cost, to each transparent electroconductive layer of a double-sided transparent electroconductive film, so as to effectively suppress internal reflection in the resulting laminate.

公开(公告)号：US20160195645A1

公开(公告)日：2016-07-07

申请号：US15069004

申请日：2016-03-14

申请人： NITTO DENKO CORPORATION

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

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

CPC分类号： 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

摘要： 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.

摘要翻译： 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片和仅设置在所述偏振片一侧的透明保护膜，所述粘合剂层设置在所述偏振片的一侧， 透明保护膜不存在，并且压敏粘合剂层由含有（甲基）丙烯酸类聚合物（A）和碱金属盐（B）的压敏粘合剂组合物制成。 带有粘合剂层的偏光膜具有抗静电功能和令人满意的耐久性的粘合剂层，其光学性能不太可能劣化。

公开(公告)号：US20140363667A1

公开(公告)日：2014-12-11

申请号：US14299214

申请日：2014-06-09

申请人： NITTO DENKO CORPORATION

发明人： Atsushi Yasui ,  Yuusuke Toyama ,  Takaaki Ishii ,  Masakuni Fujita

IPC分类号： C09J7/02 ,  C09J5/06 ,  B32B7/12

CPC分类号： B32B7/12 ,  C09J7/40 ,  C09J2433/00 ,  Y10T428/2839 ,  Y10T428/31855

摘要： A separator-attached pressure-sensitive adhesive layer of the present invention including a pressure-sensitive adhesive layer on a separator, wherein the separator includes a base film and an oligomer prevention layer, and a release layer provided in this order on the base film, and the release layer has a surface resistance value of 1.0×1013Ω/□ or more, and the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition including a base polymer and an ionic compound and is provided on the release layer of the separator. The separator-attached pressure-sensitive adhesive layer is capable of inhibiting an oligomer contained in the base film used for the separator from migrating into the pressure-sensitive adhesive layer.

摘要翻译： 本发明的带隔膜的压敏粘合剂层包括在隔膜上的压敏粘合剂层，其中隔膜包括基膜和低聚物防止层，以及依次设置在基膜上的剥离层， 所述剥离层的表面电阻值为1.0×10 13Ω·cm〜/□以上，并且所述粘合剂层由包含基础聚合物和离子性化合物的压敏粘合剂组合物形成，并且设置在所述剥离层上 的分离器。 分隔件粘合剂层能够抑制用于隔板的基膜中所含的低聚物迁移到压敏粘合剂层中。