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：US09744750B2

公开(公告)日：2017-08-29

申请号：US14639818

申请日：2015-03-05

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu Kitagawa ,  Takuya Nakazono ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

IPC: B29C65/52 ,  B29C65/54 ,  B32B37/12 ,  B32B37/20 ,  B32B38/04 ,  B32B38/10 ,  B32B38/18 ,  B32B41/00 ,  B32B43/00 ,  B32B37/00 ,  B29C55/02 ,  B29C55/06 ,  G02B5/30 ,  B29K29/00 ,  B29K67/00 ,  B32B37/18 ,  B32B38/00 ,  B32B37/24

CPC classification number: B32B37/0046 ,  B29C55/023 ,  B29C55/026 ,  B29C55/065 ,  B29K2029/04 ,  B29K2067/003 ,  B29K2995/0034 ,  B32B37/025 ,  B32B37/12 ,  B32B37/18 ,  B32B37/182 ,  B32B37/203 ,  B32B38/0004 ,  B32B38/04 ,  B32B38/10 ,  B32B38/145 ,  B32B38/18 ,  B32B2037/243 ,  B32B2038/045 ,  B32B2307/42 ,  B32B2309/72 ,  B32B2457/20 ,  B32B2457/202 ,  B32B2457/206 ,  B32B2457/208 ,  B32B2551/00 ,  G02B5/305 ,  Y10T156/1059 ,  Y10T156/1062 ,  Y10T156/1082 ,  Y10T156/12 ,  Y10T156/1322

Abstract: A method of producing an optical panel assembly including the polarizing film in a continuous manner by laminating a polarizing film to a surface of a rectangular-shaped optical panel, is disclosed. The polarizing film is formed by performing a step of subjecting a laminate including a continuous web of a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to a 2-stage stretching consisting of a preliminary in-air stretching and an in-boric-acid-solution stretching, to reduce a thickness of the PVA type resin layer to 10 μm or less, and a step of causing a dichroic material to be absorbed in the PVA type resin layer.

公开(公告)号：US09488756B2

公开(公告)日：2016-11-08

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

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.

Abstract translation: 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：US09453953B2

公开(公告)日：2016-09-27

申请号：US14920322

申请日：2015-10-22

Applicant: NITTO DENKO CORPORATION

Inventor： Akinori Izaki ,  Takeharu Kitagawa ,  Shusaku Goto ,  Takashi Kamijo ,  Tomohiro Mori ,  Minoru Miyatake

IPC: G02B5/30 ,  B29C55/02 ,  B29C55/06 ,  B05D5/06 ,  C08J7/04 ,  B29D11/00 ,  B29K29/00 ,  G02F1/1335 ,  B29K67/00

CPC classification number: G02B5/305 ,  B05D5/06 ,  B29C55/026 ,  B29C55/06 ,  B29D11/00644 ,  B29K2029/04 ,  B29K2067/003 ,  B29K2995/0034 ,  C08J7/047 ,  C08J2323/20 ,  C08J2367/02 ,  C08J2429/04 ,  G02B5/3033 ,  G02F1/133528

Abstract: The present invention provides a thin polarizing film which has only a small environmental load and has excellent optical characteristics.The thin polarizing film is produced by forming a polyvinyl alcohol-based resin layer on a thermoplastic resin substrate. The thin polarizing film has a thickness of 10 μm or less, a single axis transmittance of 42.0% or more, a polarization degree of 99.95% or more, and an iodine content of 17.6 grams per 400×700 square millimeters or less, which is measured by an ion chromatography method.

Abstract translation: 薄偏光膜通过在热塑性树脂基板上形成聚乙烯醇类树脂层来制造。 薄偏光膜的厚度为10μm以下，单轴透射率为42.0％以上，偏光度为99.95％以上，碘含量为17.6克/ 400×700平方毫米以下，为 通过离子色谱法测定。

公开(公告)号：US09442235B2

公开(公告)日：2016-09-13

申请号：US14200721

申请日：2014-03-07

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu Kitagawa ,  Takuya Nakazono ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

IPC: G02B5/30 ,  G02B1/08 ,  G02B27/28

CPC classification number: G02B5/305 ,  G02B1/08 ,  G02B5/3033 ,  G02B27/288 ,  Y10T428/1041 ,  Y10T428/14 ,  Y10T428/15

Abstract: A method of producing a roll of a continuous web of an optical film laminate, usable in a process of laminating an optical film sheet including a polarizing film and formed to a size corresponding to that an optical panel to a surface of the optical panel being fed to a lamination position, is disclosed. The polarizing film is prepared by subjecting a laminate including a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to uniaxial 2-stage stretching to reduce a thickness of the PVA type resin layer to 10 μm or less, and causing a dichroic material to be absorbed in the PVA type resin layer. A carrier film is releasably attached to the continuous web of optical film laminate including the polarizing film, through an adhesive layer. A defect inspection is performed for the optical film laminate and the adhesive layer.

Abstract translation: 一种制造光学膜层叠体的连续卷筒纸的方法，可用于将包括偏振膜的光学膜片层压并且形成为与所述光学板相对应的尺寸的光学膜片的工艺，以提供给被馈送的光学板的表面 公开了层压位置。 通过对形成在基板上的热塑性树脂基板和PVA型树脂层的层叠体进行单轴2阶段拉伸，将PVA类树脂层的厚度缩小到10μm以下，制作偏光膜， 二色性材料被吸收在PVA型树脂层中。 载体膜通过粘合剂层可释放地附着到包括偏振膜的光学膜层压板的连续幅材上。 对光学膜层叠体和粘合剂层进行缺陷检查。

公开(公告)号：US20160033700A1

公开(公告)日：2016-02-04

申请号：US14816718

申请日：2015-08-03

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu Kitagawa ,  Takashi Kamijo ,  Takeshi Saitou

IPC: G02B5/30 ,  G02B1/08 ,  G02B1/14

CPC classification number: G02B5/3033 ,  G02B1/08 ,  G02B1/14

Abstract: A polarizing plate according to an embodiment of the present invention includes a polarizing film having a thickness of 10 μm or less and a protective layer provided on at least one side of the polarizing film through intermediation of an adhesion layer. The adhesion layer has a thickness of 0.7 μm or more, and the adhesion layer has a percentage of bulk water absorption of 10 wt % or less.

公开(公告)号：US20140248465A1

公开(公告)日：2014-09-04

申请号：US14169270

申请日：2014-01-31

Applicant: NITTO DENKO CORPORATION

Inventor： Satoru Kunikata ,  Takashi Kamijo ,  Tomohiro Mori

IPC: C09K3/16

CPC classification number: G02B1/16 ,  C08J7/04 ,  C08J2367/02 ,  C08J2475/04 ,  C09K3/16 ,  G02B1/10 ,  G02B5/305 ,  Y10T428/24355

Abstract: A laminate according to an embodiment of the present invention includes: a resin substrate; a polyvinyl alcohol-based resin layer formed on one side of the resin substrate; and an antistatic layer formed on another side of the resin substrate and comprising a binder resin and a conductive material. The antistatic layer has a fine uneven surface; and the fine uneven surface includes protrusions having an average height of 25 nm or more and a softening temperature of 150° C. or more.

Abstract translation: 根据本发明实施例的层压板包括：树脂基板; 形成在树脂基板一侧的聚乙烯醇类树脂层; 以及形成在树脂基板的另一侧上并且包括粘合剂树脂和导电材料的抗静电层。 抗静电层具有细小的不平坦表面; 微细凹凸表面包括平均高度为25nm以上且软化温度为150℃以上的突起。

公开(公告)号：US20140130955A1

公开(公告)日：2014-05-15

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: 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.

Abstract translation: 本发明的粘合型光学膜包括光学膜和设在该光学膜上的压敏粘合剂层，其中该粘合剂层的厚度（μm）标准偏差为0.12μm以下。 粘合型光学薄膜可以减少由粘合剂层引起的可见的不均匀性的问题。

公开(公告)号：US20140111858A1

公开(公告)日：2014-04-24

申请号：US14122587

申请日：2012-05-24

Applicant: NITTO DENKO CORPORATION

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

IPC: G02B5/30

CPC classification number: G02B5/305 ,  C08J5/18 ,  G02B5/3033 ,  G02F1/133528

Abstract: Provided is a polarizing plate with a pressure-sensitive adhesive layer which is excellent in reliability of optical properties and durability of pressure-sensitive adhesion. The polarizing plate with a pressure-sensitive adhesive layer comprises a polarizing film and a pressure-sensitive adhesive layer provided directly on at least one surface of the polarizing film. The pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive composition containing a pressure-sensitive adhesive polymer, and an amount of an acid component in a total monomer component constituting the pressure-sensitive adhesive polymer is less than 8 wt %.

Abstract translation: 本发明提供一种具有粘合剂层的偏光板，其光学性能的可靠性和压敏粘合剂的耐久性优异。 具有压敏粘合剂层的偏振片包括偏振膜和直接设置在偏振膜的至少一个表面上的压敏粘合剂层。 压敏粘合剂层包括含有压敏粘合剂聚合物的压敏粘合剂组合物，构成压敏粘合剂聚合物的总单体组分中的酸组分的量小于8重量％。

公开(公告)号：US08520171B2

公开(公告)日：2013-08-27

申请号：US13709932

申请日：2012-12-10

Applicant: Nitto Denko Corporation

Inventor： Takeharu Kitagawa ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo ,  Kentaro Yoshida ,  Satoru Kunikata

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02B5/30 ,  B29C55/026 ,  B29C65/00 ,  B29D11/00 ,  B29K2029/04 ,  B29K2067/00 ,  B29K2995/0034 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2001/133638 ,  G02F2201/50 ,  G02F2202/22 ,  G02F2202/28 ,  H01L2924/30107 ,  Y10T428/1041 ,  Y10T428/2495 ,  Y10T428/265 ,  H01L2924/00

Abstract: Provided is an optical display device using a polarizing film which has a thickness of 10 μm or less and exhibits high optical characteristics. The optical display device comprises a continuous web of polarizing film which is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and satisfy conditions expressed by the following formulas: P>−(100.929T-42.4−1)×100 (where T