公开(公告)号：US20190352547A1

公开(公告)日：2019-11-21

申请号：US16525979

申请日：2019-07-30

Applicant: NITTO DENKO CORPORATION

Inventor： Masakuni Fujita ,  Yusuke Toyama ,  Yu Morimoto

IPC: C09J133/08 ,  C09J7/38 ,  G02F1/1347 ,  C09J133/10 ,  G02F1/1335 ,  G02B5/30 ,  G02F1/1333

Abstract: A pressure-sensitive-adhesive-layer-attached polarizing film including a pressure-sensitive adhesive layer and a polarizing film, and is used, together with a transparent conductive substrate having a transparent conductive layer and a transparent substrate, in the state of being bonded to the transparent conductive layer, wherein a pressure-sensitive adhesive composition for forming the pressure-sensitive adhesive layer includes a (meth)acryl-based polymer and a thiol-group-containing silane coupling agent. The pressure-sensitive-adhesive-layer-attached polarizing film has a pressure-sensitive adhesive layer, having a high endurance even in the case of being bonded to a transparent conductive substrate having a transparent conductive layer and a transparent substrate, in particular, having an excellent endurance in a humidified environment and an excellent re-workability even in the same case, attached to a polarizing film.

公开(公告)号：US20190193374A1

公开(公告)日：2019-06-27

申请号：US16325529

申请日：2017-08-02

Applicant: NITTO DENKO CORPORATION

Inventor： Mizue Yamasaki ,  Yusuke Toyama ,  Yu Morimoto

IPC: B32B7/023 ,  G02B5/30 ,  G02F1/13363 ,  G09F9/30 ,  H01L27/32 ,  H05B33/02 ,  H01L51/50 ,  G02F1/1335

CPC classification number: B32B7/023 ,  B32B7/02 ,  G02B5/30 ,  G02B5/3025 ,  G02B5/3083 ,  G02F1/1335 ,  G02F1/133528 ,  G02F1/13363 ,  G09F9/30 ,  G09F9/301 ,  H01L27/32 ,  H01L51/50 ,  H01L51/5012 ,  H05B33/02

Abstract: The disclosure provides a laminate for a flexible image display device by using an optical film including at least a polarizer and a plurality of specific pressure-sensitive adhesive layers, which exhibits excellent bending resistance and adhesiveness and does not peel or break even after repeated bending; and a flexible image display device in which the laminate for a flexible image display device is disposed. The laminate includes a plurality of pressure-sensitive adhesive layers and an optical film including at least a polarizer, wherein a thickness of the polarizer is 20 μm or less, and a storage elastic modulus G′ at 25° C. of the pressure-sensitive adhesive layer at an outermost surface on a convex side when the laminate is folded, among the plurality of pressure-sensitive adhesive layers, is substantially equal to or lower than the storage elastic modulus G′ at 25° C. of another pressure-sensitive adhesive layer.

公开(公告)号：US20190211234A1

公开(公告)日：2019-07-11

申请号：US16325552

申请日：2017-08-02

Applicant: NITTO DENKO CORPORATION

Inventor： Mizue Yamasaki ,  Yusuke Toyama ,  Yu Morimoto

IPC: C09J7/40 ,  C09J133/24 ,  G02B5/30 ,  G02F1/1333 ,  G09F9/30 ,  H01L27/32 ,  H01L51/50 ,  H05B33/02

CPC classification number: C09J7/40 ,  C09J7/00 ,  C09J133/00 ,  C09J133/24 ,  G02B5/30 ,  G02B5/3025 ,  G02F1/1333 ,  G02F1/133305 ,  G09F9/00 ,  G09F9/301 ,  H01L27/32 ,  H01L51/50 ,  H01L51/5012 ,  H05B33/02

Abstract: The purpose of the present invention is to provide: a pressure-sensitive adhesive layer for a flexible image display device which exhibits excellent bending resistance and adhesiveness, and which does not peel or break even after repeated bending; a laminate for a flexible image display device which includes the pressure-sensitive adhesive layer for a flexible image display device; and a flexible image display device in which the laminate for a flexible image display device is provided. A pressure-sensitive adhesive layer for a flexible image display device formed from a pressure-sensitive adhesive composition containing a (meth)acrylic polymer, wherein a weight average molecular weight (Mw) of the (meth)acrylic polymer is from 1,000,000 to 2,500,000, and a glass transition temperature (Tg) of the pressure-sensitive adhesive layer is 0° C. or less.

公开(公告)号：US20190177577A1

公开(公告)日：2019-06-13

申请号：US16325585

申请日：2017-08-02

Applicant: NITTO DENKO CORPORATION

Inventor： Mizue Yamasaki ,  Yusuke Toyama ,  Yu Morimoto

IPC: C09J7/38 ,  C09J7/29 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  G06F3/041

Abstract: The disclosure provides: a pressure-sensitive adhesive composition for a flexible image display device; a pressure-sensitive adhesive layer for a flexible image display device; a laminate for a flexible image display device, which, as a result of using the pressure-sensitive adhesive layer and au optical laminate, exhibits excellent bending resistance and adhesiveness, and does not peel even after repeated bending; and a flexible image display device. The pressure-sensitive adhesive composition includes a (meth)acrylic polymer including as monomer units: at least one monomer having a reactive functional group selected from the group consisting of hydroxyl group-containing monomers, carboxyl group-containing monomers, amino group-containing monomers, and amide group-containing monomers; and a (meth)acrylic monomer having a linear or branched alkyl group of 1 to 24 carbon atoms, wherein the monomer having the reactive functional group in all monomers constituting the (meth)acrylic polymer is 0.02 to 10% by weight.

公开(公告)号：US20140302314A1

公开(公告)日：2014-10-09

申请号：US14247704

申请日：2014-04-08

Applicant: NITTO DENKO CORPORATION

Inventor： Kyoko Takashima ,  Yu Morimoto ,  Kazuma Mitsui ,  Kousuke Yonezaki ,  Tsunaki Kitahara

IPC: C09J133/08 ,  C09J7/02

CPC classification number: C09J133/08 ,  C08F220/18 ,  C08L2201/54 ,  C08L2312/00 ,  C09J7/385 ,  Y10T428/2891 ,  C08F2220/1858 ,  C08F220/06 ,  C08F220/14

Abstract: Provided is a water-dispersible acrylic pressure-sensitive adhesive composition which can form a pressure-sensitive adhesive layer excellent in antistatic property, repeeling property (light peeling property), and appearance property. The repeelable water-dispersible acrylic pressure-sensitive adhesive composition of the present invention contains an acrylic emulsion-based polymer composed of 70 to 99.5% by weight of a (meth)acrylic acid alkyl ester and 0.5 to 10% by weight of a carboxyl group-containing unsaturated monomer as monomer components, a crosslinking agent, an ionic compound, and a nonionic surfactant with an HLB value of 6 or more.

Abstract translation: 本发明提供一种能够形成抗静电性，重复性（光剥离性）和外观性优异的压敏粘合剂层的水分散性丙烯酸类粘合剂组合物。 本发明的可重复使用的水分散性丙烯酸类粘合剂组合物含有由70〜99.5重量％的（甲基）丙烯酸烷基酯和0.5〜10重量％的羧基组成的丙烯酸系乳液系聚合物 作为单体成分的不饱和单体，HLB值为6以上的交联剂，离子性化合物和非离子表面活性剂。

公开(公告)号：US20140255690A1

公开(公告)日：2014-09-11

申请号：US14352435

申请日：2012-10-12

Applicant: NITTO DENKO CORPORATION

Inventor： Tatsumi Amano ,  Yu Morimoto ,  Kazuma Mitsui ,  Kousuke Yonezaki ,  Kyoko Takashima

IPC: C09J7/02

CPC classification number: C09J7/22 ,  C08F220/08 ,  C08K5/0075 ,  C08K5/19 ,  C08K5/34 ,  C09J7/38 ,  C09J9/02 ,  C09J133/08 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2433/00 ,  Y10T428/2891 ,  C08F2220/1858 ,  C08F220/06

Abstract: Provided is a water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer that is superior in adhesive properties, antistatic properties, removability, the ability to prevent an increase in peel strength (adhesive strength) over time, and superior in less-staining properties on adherends, particularly, in the ability to prevent white staining on adherends in a high-humidity environment (the ability to prevent white staining), and also superior in appearance properties. The invention is directed to a water-dispersible acrylic pressure-sensitive adhesive composition, including: an acrylic emulsion polymer including 70 to 99.5% by weight of a monomer unit derived from an alkyl (meth)acrylate and 0.5 to 10% by weight of a monomer unit derived from a carboxyl group-containing unsaturated monomer; a non-water-soluble (hydrophobic) ionic liquid; and an acetylene diol compound with an HLB value of less than 13 and/or a derivative thereof with an HLB value of less than 13.

Abstract translation: 提供一种能够形成粘合性，抗静电性，可除去性，防止随时间推移的剥离强度（粘合强度）增加的能力的粘合剂层的水分散性丙烯酸类压敏粘合剂组合物，以及 特别是在高湿度环境下（特别是防止白色染色的能力）防止白色染色的能力，以及外观性能也优异。 本发明涉及一种水分散性丙烯酸类压敏粘合剂组合物，其包括：丙烯酸乳液聚合物，其包含70-99.5重量％的衍生自（甲基）丙烯酸烷基酯的单体单元和0.5至10重量％的 衍生自含羧基的不饱和单体的单体单元; 非水溶性（疏水）离子液体; 和HLB值小于13的乙炔二醇化合物和/或其HLB值小于13的衍生物。

公开(公告)号：US10197709B2

公开(公告)日：2019-02-05

申请号：US15557688

申请日：2015-11-04

Applicant: NITTO DENKO CORPORATION

Inventor： Yu Morimoto ,  Yusuke Toyama ,  Takaaki Ishii ,  Kazuo Kitada ,  Satoshi Hashimoto ,  Akihiro Nagura

IPC: G02B1/16 ,  B32B27/00 ,  G02F1/1335 ,  B32B7/02 ,  C08J7/04 ,  G02B5/30 ,  G02B1/14 ,  B32B7/12 ,  G02F1/13

Abstract: To provide a continuous web of optical film laminate provided with static electrification prevention function which allows for promptly attenuating static charge of optical film sheet and carrier film electrified by peeling action in RTP lamination method and apparatus. The problem has been solved with a continuous web of optical film laminate for using in RTP lamination method and apparatus, in which static electrification prevention function is provided to optical film sheets and a carrier film configuring the continuous web of optical film laminate, such that sheet resistance of each of the optical film sheets and the carrier film is 1012 Ω/sq or less so as to promptly attenuate static charge of the carrier film to be collected, which is statically electrified by peeling action, and the optical film sheets to be laminated to panel components, which are also statically electrified by peeling action.

公开(公告)号：US09096781B2

公开(公告)日：2015-08-04

申请号：US13891592

申请日：2013-05-10

Applicant: Nitto Denko Corporation

Inventor： Yu Morimoto ,  Kousuke Yonezaki ,  Tatsumi Amano ,  Kazuma Mitsui ,  Kyoko Takashima

IPC: C09J133/02 ,  C08L101/04 ,  C09J133/04 ,  C09J133/16

CPC classification number: C09J133/02 ,  C08L101/04 ,  C08L2201/54 ,  C09J133/04 ,  C09J133/16

Abstract: An aim of the prevention invention is to provide a water dispersion type acryl-based pressure-sensitive adhesive composition for re-peeling, which can prevent electrification of an adherend at the time of peeling (peeling antistatic properties) and which can form a pressure-sensitive adhesive layer excellent in adherability and re-peelable properties, and also to provide a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed of the pressure-sensitive adhesive composition. The re-peelable water dispersion type acryl-based pressure-sensitive adhesive composition of the present invention contains an acrylic emulsion-based polymer composed of a (meth)acrylic acid alkyl ester and a carboxyl-containing unsaturated monomer as raw material monomers, a perfluoroalkyl-containing oligomer, and an ionic compound.

Abstract translation: 本发明的目的在于提供一种用于再剥离的水分散型丙烯酸类压敏粘合剂组合物，其可以防止剥离时的被粘物带电（剥离抗静电性），并且可以形成压敏粘合剂， 粘合性和再剥离性优异的粘合剂层，以及提供具有由压敏粘合剂组合物形成的粘合剂层的压敏粘合片。 本发明的可再剥离型水分散型丙烯酸系粘合剂组合物含有由（甲基）丙烯酸烷基酯和含羧基的不饱和单体作为原料单体构成的丙烯酸乳液系聚合物，全氟烷基 的低聚物和离子化合物。

公开(公告)号：US20140308516A1

公开(公告)日：2014-10-16

申请号：US14352502

申请日：2012-10-12

Applicant: NITTO DENKO CORPORATION

Inventor： Kousuke Yonezaki ,  Tatsumi Amano ,  Yu Morimoto ,  Kazuma Mitsui ,  Kyoko Takashima

IPC: C09J7/02

CPC classification number: C09J7/38 ,  C08F220/18 ,  C08G77/46 ,  C09J7/22 ,  C09J133/02 ,  C09J133/08 ,  C09J2203/318 ,  C09J2205/114 ,  C09J2433/00 ,  C09J2483/00 ,  G02F2202/28 ,  Y10T428/2891 ,  Y10T428/31663 ,  C08F2220/1858 ,  C08F220/06 ,  C08F220/14

Abstract: Provided is a removable water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer that is superior in antistatic properties (resistance to peeling-induced static build-up), removability, adhesion (adhesive properties), and the ability to prevent an increase in peel strength (adhesive strength) over time and also superior in less-staining properties on adherends, particularly, the ability to prevent white staining on adherends in a high-humidity environment. Also provided is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer made from such a pressure-sensitive adhesive composition. The removable water-dispersible acrylic pressure-sensitive adhesive composition contains an acrylic emulsion polymer including units derived from raw material monomers including at least (A) an alkyl (meth)acrylate and (B) 0.5 to 10% by weight of a carboxyl group-containing unsaturated monomer; and an alkylene oxide group-containing polysiloxane.

Abstract translation: 本发明提供能够形成抗静电性（耐剥离性静电累积性），可除去性，粘合性（粘合性）优异的压敏粘合剂层的可除去的水分散性丙烯酸系压敏粘合剂组合物， 防止随着时间的推移剥离强度（粘合强度）增加的能力，并且在被粘物上的染色性能也优异，特别是在高湿度环境下防止被粘附物白色染色的能力。 还提供了具有由这种压敏粘合剂组合物制成的压敏粘合剂层的压敏粘合片。 可拆卸的水分散性丙烯酸类压敏粘合剂组合物包含丙烯酸乳液聚合物，其包含衍生自至少包含（A）（甲基）丙烯酸烷基酯的原料单体的单元和（B）0.5至10重量％的羧基 - 含不饱和单体; 和含环氧烷基团的聚硅氧烷。

公开(公告)号：US10578778B2

公开(公告)日：2020-03-03

申请号：US16179835

申请日：2018-11-02

Applicant: NITTO DENKO CORPORATION

Inventor： Yu Morimoto ,  Yusuke Toyama ,  Takaaki Ishii ,  Kazuo Kitada ,  Satoshi Hashimoto ,  Akihiro Nagura

IPC: G02B1/16 ,  B32B27/00 ,  G02F1/1335 ,  G02B1/14 ,  B32B7/02 ,  C08J7/04 ,  G02B5/30 ,  B32B7/12 ,  G02F1/13

Abstract: A continuous web of optical film laminate comprising, an optical film comprising a first substrate and an adhesive layer on the first substrate, a releasable film comprising a second substrate and a releasably treated layer on the second substrate, the releasably treated layer being in contact with the adhesive layer, a first conductive layer between the first substrate and the adhesive layer, and a second conductive layer between the second substrate and the releasably treated layer. The first conductive layer and the second conductive layer comprise a static electrification prevention material, such that the optical film with the first conductive layer, and the releasable film with the second conductive layer, both have a sheet resistance of 1012 Ω/sq or less.