公开(公告)号：US20130216805A1

公开(公告)日：2013-08-22

申请号：US13846168

申请日：2013-03-18

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 ,  B05D5/10 ,  C09J7/02

CPC classification number: G02B5/3025 ,  B05D5/10 ,  C09J7/385 ,  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：US10101514B2

公开(公告)日：2018-10-16

申请号：US15263293

申请日：2016-09-12

Applicant: NITTO DENKO CORPORATION

Inventor： Shusaku Goto ,  Minoru Miyatake ,  Takashi Kamijo ,  Satoru Kunikata

IPC: G02B5/30 ,  B29C55/02

Abstract: Provided is a laminate comprising a thermoplastic resin substrate and a polyvinyl alcohol based resin layer formed on the thermoplastic resin substrate, being used to form a polarizing film of the polyvinyl alcohol based resin layer treated with a post-process comprising at least a dyeing step of dyeing the polyvinyl alcohol based resin layer with a dichroic material, the post-process being performed after the polyvinyl alcohol based resin layer formed on the thermoplastic resin substrate is stretched together with the thermoplastic resin substrate, wherein the polyvinyl alcohol based resin layer comprises a polyvinyl alcohol based resin and a halide.

公开(公告)号：US20180188421A1

公开(公告)日：2018-07-05

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

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.

公开(公告)号：US09529131B2

公开(公告)日：2016-12-27

申请号：US14816718

申请日：2015-08-03

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu Kitagawa ,  Takashi Kamijo ,  Takeshi Saitou

IPC: G02B5/30 ,  G02B1/14 ,  G02B1/08

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.

Abstract translation: 根据本发明实施例的偏振片包括厚度为10μm以下的偏振片和通过粘附层设置在偏振膜的至少一侧上的保护层。 粘合层的厚度为0.7μm以上，粘附层的体积吸水率为10重量％以下。

公开(公告)号：US20160195644A1

公开(公告)日：2016-07-07

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

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.

公开(公告)号：US09340718B2

公开(公告)日：2016-05-17

申请号：US14169270

申请日：2014-01-31

Applicant: NITTO DENKO CORPORATION

Inventor： Satoru Kunikata ,  Takashi Kamijo ,  Tomohiro Mori

IPC: C09K3/16 ,  G02B1/10 ,  C08J7/04 ,  G02B5/30

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：US20160047960A1

公开(公告)日：2016-02-18

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 ,  B29D11/00

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: 本发明提供一种环境负荷小且光学特性优异的薄偏光膜。 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：US20160033699A1

公开(公告)日：2016-02-04

申请号：US14802071

申请日：2015-07-17

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu Kitagawa ,  Takashi Kamijo ,  Takeshi Saitou

IPC: G02B5/30 ,  G02F1/1335 ,  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.

Abstract translation: 根据本发明实施例的偏振片包括厚度为10μm以下的偏振片和通过粘附层设置在偏振膜的至少一侧上的保护层。 粘合层的厚度为0.7μm以上，粘附层的体积吸水率为10重量％以下。

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：US09354372B2

公开(公告)日：2016-05-31

申请号：US14647534

申请日：2014-02-06

Applicant: NITTO DENKO CORPORATION

Inventor： Takashi Kamijo ,  Akinori Izaki ,  Takeharu Kitagawa ,  Shusaku Goto ,  Daigoro Nakagawa

IPC: G02B5/30 ,  G02B1/14 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/30 ,  G02B1/111

CPC classification number: G02B1/14 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/306 ,  B32B2307/412 ,  B32B2307/418 ,  B32B2307/42 ,  B32B2457/20 ,  B32B2457/202 ,  B32B2457/206 ,  G02B1/11 ,  G02B1/111 ,  G02B5/3033 ,  G02B5/3083

Abstract: An optical laminate in which a polarizing film including a polyvinyl alcohol-based resin having oriented iodine is bonded on a first surface of the polarizing film to an optical film through an optically transparent adhesive layer is provided. The polarizing film exhibits a property that a value expressed by the following formula: Aa×(Is/Ia), is 0.53 or more, where: Aa represents an absorbance; Ia represents a value obtained by integrating a distribution of integrated intensities in the thickness direction of the polarizing film; and Is represents a value obtained by integrating, a distribution of integrated intensities in the thickness direction of the polarizing film; and the adhesive layer exhibits a property that a difference between a refractive index of the adhesive layer and a refractive index in the absorption axis direction of the polarizing film at the first surface of the polarizing film is 0.08 or less.

Abstract translation: 提供了一种光学层叠体，其中包括具有取向碘的聚乙烯醇系树脂的偏振膜通过光学透明粘合剂层粘合在偏振膜的第一表面上与光学膜。 该偏光膜具有下述式所表示的值：Aa×（Is / Ia）为0.53以上，其中：Aa表示吸光度; Ia表示通过对偏振膜的厚度方向的积分强度分布进行积分而得到的值; Is表示通过对偏振膜的厚度方向的积分强度的分布进行积分而得到的值; 并且粘合剂层具有粘合剂层的折射率与偏振膜的第一表面的偏振膜的吸收轴方向的折射率之间的差为0.08以下的性质。