公开(公告)号：US20180052256A1

公开(公告)日：2018-02-22

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 ,  G02F1/1335 ,  G02B5/30 ,  C08J7/04 ,  B32B7/02

CPC classification number: G02B1/16 ,  B32B7/02 ,  B32B7/12 ,  B32B27/00 ,  B32B2307/40 ,  B32B2457/202 ,  C08J7/045 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/305 ,  G02F1/1303 ,  G02F1/1335 ,  G02F1/133528 ,  G02F2202/22 ,  G02F2202/28 ,  Y10T428/1055

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：US20140030519A1

公开(公告)日：2014-01-30

申请号：US13952307

申请日：2013-07-26

Applicant: NITTO DENKO CORPORATION

Inventor： Yu MORIMOTO ,  Kousuke YONEZAKI ,  Tatsumi AMANO ,  Kazuma MITSUI

IPC: C09J7/02

CPC classification number: C09J7/385 ,  C09J2203/306 ,  Y10T428/2857 ,  Y10T428/2891

Abstract: An aim of the present invention is to provide a pressure-sensitive adhesive sheet excellent in antistatic property, re-peelable property, and adherability (tackiness). A pressure-sensitive adhesive sheet according to the present invention includes a substrate and a pressure-sensitive adhesive layer on at least one surface of the substrate, wherein the pressure-sensitive adhesive layer is formed of a water dispersion type acryl-based pressure-sensitive adhesive composition containing an acrylic emulsion-based polymer containing at least 70 to 99.5% by weight of a (meth)acrylic acid alkyl ester (A) and 0.5 to 10% by weight of a carboxyl-containing unsaturated monomer (B) as raw material monomers and an ionic compound; a peeling power ratio ((B)/(A)) of a peeling power (B) for an adherend surface with a surface roughness Ra of 250 to 450 μm and low polarity to a peeling power (A) for an adherend surface with a surface roughness Ra of 5 to 50 μm and high polarity measured at a peeling speed of 30 m/minute and a peeling angle of 180° is 0.7 to 1.5; the adhesion to the low polarity adherend surface is 99.0% or higher; and an initial peeling electrification voltage (absolute value) is 1.0 kV or lower.

Abstract translation: 本发明的目的是提供抗静电性，再剥离性和粘合性（粘合性）优异的粘合片。 根据本发明的压敏粘合片包括在基材的至少一个表面上的基材和压敏粘合剂层，其中压敏粘合剂层由水分散型丙烯酸类压敏粘合剂形成 含有至少70-99.5重量％的（甲基）丙烯酸烷基酯（A）和0.5-10重量％的含羧基的不饱和单体（B）作为原料的丙烯酸乳液基聚合物的粘合剂组合物 单体和离子化合物; 表面粗糙度Ra为250〜450μm的被粘物表面的剥离力（B）/剥离强度（B）/（A）），对于被粘物表面的剥离强度（A）为低 表面粗糙度Ra为5〜50μm，剥离速度为30m /分，剥离角为180°时测定的极性为0.7〜1.5， 对低极性被粘物表面的粘附性为99.0％以上; 初始剥离带电电压（绝对值）为1.0kV以下。

公开(公告)号：US20130280527A1

公开(公告)日：2013-10-24

申请号：US13867353

申请日：2013-04-22

Applicant: NITTO DENKO CORPORATION

Inventor： Kenjiro NIIMI ,  Natsuki UKEI ,  Hiromoto HARUTA ,  Kenichi KATAOKA ,  Kazuma MITSUI ,  Yu MORIMOTO ,  Tatsumi AMANO

IPC: C09J7/02

CPC classification number: G02B1/16 ,  C09J7/29 ,  C09J7/385 ,  C09J2433/00 ,  G02B1/105 ,  G02B1/14 ,  Y10T428/2848

Abstract: The invention provides a surface protection film including a top coat layer on a first face of a substrate, and a pressure-sensitive adhesive layer on a second face. The top coat layer includes a wax as a slip agent, and a polyester resin as a binder. Here, the wax is an ester of a higher fatty acid and a higher alcohol.

Abstract translation: 本发明提供一种表面保护膜，其包括在基板的第一面上的顶涂层和在第二面上的压敏粘合剂层。 顶涂层包括作为增滑剂的蜡和作为粘合剂的聚酯树脂。 这里，蜡是高级脂肪酸和高级醇的酯。

公开(公告)号：US20140030515A1

公开(公告)日：2014-01-30

申请号：US13951968

申请日：2013-07-26

Applicant: NITTO DENKO CORPORATION

Inventor： Yu MORIMOTO ,  Kazuma MITSUI ,  Tatsumi AMANO ,  Kousuke YONEZAKI

IPC: C09J11/06 ,  C09J7/02

CPC classification number: C09J11/06 ,  C08K5/1515 ,  C08K5/3445 ,  C08L2201/54 ,  C09J7/385 ,  C09J133/08 ,  C09J2203/318 ,  C09J2205/102 ,  Y10T428/2848 ,  Y10T428/2861 ,  C08K5/0025 ,  C08F2220/1858 ,  C08F220/14 ,  C08F220/06

Abstract: An aim of the prevention invention is to provide a re-peelable water dispersion type acryl-based pressure-sensitive adhesive composition, which can prevent electrification at the time of peeling off under low humidity environments (an antistatic property for peeling off in low humidity) independently of an adherend and which can form a pressure-sensitive adhesive layer excellent in adherability and re-peelable properties. 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 in an amount of 70 to 99.5% by weight and a carboxyl-containing unsaturated monomer in an amount of 0.5 to 10% by weight as raw material monomers, a crosslinking agent, and an ionic compound, wherein the acrylic emulsion-based polymer has an average particle diameter of 130 to 550 nm.

Abstract translation: 本发明的目的在于提供一种可剥离水分散型丙烯酸系粘合剂组合物，其可以防止在低湿度环境下剥离时的起电（在低湿度下剥离的抗静电性） 独立于被粘物，并且可以形成粘合性和再剥离性优异的压敏粘合剂层。 本发明的可再剥离型水性分散型丙烯酸系粘合剂组合物含有由（甲基）丙烯酸烷基酯组成的丙烯酸系乳液系聚合物，其含量为70〜99.5重量％ 含有0.5〜10重量％的不饱和单体作为原料单体，交联剂和离子性化合物，其中丙烯酸乳液类聚合物的平均粒径为130〜550nm。

公开(公告)号：US20190079216A1

公开(公告)日：2019-03-14

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

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 1012Ω/sq or less.

公开(公告)号：US20190056533A1

公开(公告)日：2019-02-21

申请号：US16169775

申请日：2018-10-24

Applicant: NITTO DENKO CORPORATION

Inventor： Yu MORIMOTO ,  Yusuke TOYAMA ,  Takaaki ISHII ,  Kazuo KITADA ,  Satoshi HASHIMOTO ,  Akihiro NAGURA

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

Abstract: A method for continuously manufacturing an optical display device comprises feeding a continuous web of optical film laminate including a continuous web of releasable film that includes a conductive layer and an optical film sheet that includes a conductive layer formed on the releasable film, bending the releasable film at a peeling body located in close vicinity of a lamination position, collecting the releasable film and thereby peeling the optical film sheet from the optical film laminate, sending the optical film sheet to the lamination position, and laminating the optical film sheet with a panel member which is conveyed to the lamination position by a panel conveying channel which makes at least a double-storied structure with a portion of a collecting channel where the releasable film is collected, attenuating static electrification generated on the optical film sheet, and continuously laminating the optical film sheet with the panel member.