公开(公告)号：US20160377774A1

公开(公告)日：2016-12-29

申请号：US15263297

申请日：2016-09-12

Applicant: NITTO DENKO CORPORATION

Inventor： Shusaku GOTO ,  Minoru MIYATAKE ,  Takashi KAMIJO ,  Satoru KUNIKATA

IPC: G02B5/30

CPC classification number: G02B5/305 ,  B29C55/005 ,  B29C55/023 ,  B29K2029/04 ,  B32B27/08 ,  B32B27/306 ,  B32B2307/40 ,  B32B2307/42 ,  B32B2457/00 ,  G02B5/3033

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 glycerin.

Abstract translation: 提供了一种层压体，其包含热塑性树脂基材和形成在热塑性树脂基材上的聚乙烯醇类树脂层，用于形成用后处理的聚乙烯醇类树脂层的偏振膜，所述后处理至少包含染色步骤 用二向色材料对聚乙烯醇系树脂层进行染色，在形成于热塑性树脂基板上的聚乙烯醇系树脂层之后进行的后处理与热塑性树脂基材一起拉伸，其中，聚乙烯醇类树脂层包含聚乙烯醇系树脂层 醇基树脂和甘油。

公开(公告)号：US20150043070A1

公开(公告)日：2015-02-12

申请号：US14448313

申请日：2014-07-31

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu KITAGAWA ,  Shusaku GOTO

IPC: G02B5/30 ,  H05B33/02 ,  G02B1/10 ,  G02B1/08

CPC classification number: G02B5/305 ,  B29C55/023 ,  B29C55/06 ,  B29K2029/04 ,  B29K2067/003 ,  B29K2995/0034 ,  G02B1/10 ,  G02B5/3033 ,  H05B33/02

Abstract: The present invention addresses a problem that a conventional thinned and high-transmittance polarizing plate has poor durability.Provided is a polarizing film in the form of a continuous web, which is comprised of a polyvinyl alcohol-based resin containing potassium and molecularly-oriented iodine, wherein the polarizing film has a thickness of 7 μm or less, and exhibits a single transmittance of 44.0% or more, and wherein a mole ratio (PK) of elemental iodine (I) to elemental potassium (K) contained in the polarizing film is 1.8 or more.

Abstract translation: 本发明解决了传统的薄型和高透光性偏振片的耐久性差的问题。 本发明提供一种由含有钾和分子取向的碘的聚乙烯醇类树脂构成的连续纤维网形式的偏振膜，其中偏振膜的厚度为7μm以下，并且具有单一透射率 44.0％以上，偏光膜中所含的元素碘（I）与元素钾（K）的摩尔比（PK）为1.8以上。

公开(公告)号：US20150316696A1

公开(公告)日：2015-11-05

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

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。

公开(公告)号：US20130329289A1

公开(公告)日：2013-12-12

申请号：US13907391

申请日：2013-05-31

Applicant: NITTO DENKO CORPORATION

Inventor： Nobuyuki HAIDA ,  Shusaku GOTO ,  Takeharu KITAGAWA

IPC: G02B1/04

CPC classification number: G02B1/04 ,  G02B1/08 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  C08L29/04

Abstract: [TECHNICAL PROBLEM]Provided a polarizing film which comprising a substrate and a PVA-based resin, wherein it has good adhesion between the substrate and the PVA-based resin to allow the PVA-based resin to become less likely to be peeled off from the substrate during stretching and/or conveyance, and exhibits excellent appearance.[SOLUTION]The polarizing film is obtained by providing a layer of a PVA-based resin on a substrate and stretching the substrate and the PVA-based resin layer together. The PVA-based resin contains a modified PVA, wherein the modified PVA exists in an amount allowing a modification rate with respect to the entire PVA-based resin to be in a range of 0.04 mol % to 1.4 mol %.

Abstract translation: 技术问题提供一种偏振膜，其包含基材和PVA类树脂，其中基材和PVA类树脂之间具有良好的粘附性，以使PVA类树脂变得不太可能从 基材在拉伸和/或输送过程中，并且表现出优异的外观。 [解决方案]通过在基板上设置PVA基树脂层并将基板和PVA类树脂层一起拉伸而获得偏振膜。 PVA类树脂含有改性PVA，其中改性PVA的存在量允许相对于整个PVA类树脂的改性率在0.04mol％至1.4mol％的范围内。

公开(公告)号：US20140186568A1

公开(公告)日：2014-07-03

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

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：US20130114139A1

公开(公告)日：2013-05-09

申请号：US13728473

申请日：2012-12-27

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu KITAGAWA ,  Takuya NAKAZONO ,  Shusaku GOTO ,  Minoru MIYATAKE ,  Tomohiro MORI ,  Takashi KAMIJO

IPC: G02B5/30

CPC classification number: G02B5/305 ,  B32B41/00 ,  B32B2457/20 ,  G02B5/3033

Abstract: A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll.

Abstract translation: 一种制造包括偏光膜的光学膜层压条的卷的方法包括以下步骤：形成包括由聚乙烯醇型树脂层组成的并具有10μm厚度的偏振膜的光学膜层压材料的连续幅材，或者 其特征在于，所述偏光膜是通过对形成在所述基材上的聚乙烯醇类树脂层的包含连续纤维网的层叠体在层叠体的长度方向进行单轴拉伸的拉伸工序进行拉伸， 基于由初步空气中拉伸和硼酸溶液拉伸组成的2段拉伸; 沿着与长度方向平行的方向切割光学膜层压板的连续卷材以形成具有给定宽度的至少一个连续的层压条带; 并将具有给定宽度的层压带的连续卷材卷绕成卷。

公开(公告)号：US20160377773A1

公开(公告)日：2016-12-29

申请号：US15263294

申请日：2016-09-12

Applicant: NITTO DENKO CORPORATION

Inventor： Shusaku GOTO ,  Minoru MIYATAKE ,  Takashi KAMIJO ,  Satoru KUNIKATA

IPC: G02B5/30

CPC classification number: G02B5/305 ,  B29C55/005 ,  B29C55/023 ,  B29D11/00644 ,  B29D11/0073 ,  B29K2029/04 ,  G02B5/3033

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 urea.

Abstract translation: 提供了一种层压体，其包含热塑性树脂基材和形成在热塑性树脂基材上的聚乙烯醇类树脂层，用于形成用后处理的聚乙烯醇类树脂层的偏振膜，所述后处理至少包含染色步骤 用二向色材料对聚乙烯醇系树脂层进行染色，在形成于热塑性树脂基板上的聚乙烯醇系树脂层之后进行的后处理与热塑性树脂基材一起拉伸，其中，聚乙烯醇类树脂层包含聚乙烯醇系树脂层 醇基树脂和尿素。

公开(公告)号：US20160370502A1

公开(公告)日：2016-12-22

申请号：US15218083

申请日：2016-07-25

Applicant: NITTO DENKO CORPORATION

Inventor： Nobuyuki HAIDA ,  Shusaku GOTO ,  Takeharu KITAGAWA

IPC: G02B1/04 ,  G02B5/30

CPC classification number: G02B1/04 ,  G02B1/08 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  C08L29/04

Abstract: [TECHNICAL PROBLEM]Provided a polarizing film which comprising a substrate and a PVA-based resin, wherein it has good adhesion between the substrate and the PVA-based resin to allow the PVA-based resin to become less likely to be peeled off from the substrate during stretching and/or conveyance, and exhibits excellent appearance.[SOLUTION]The polarizing film is obtained by providing a layer of a PVA-based resin on a substrate and stretching the substrate and the PVA-based resin layer together. The PVA-based resin contains a modified PVA, wherein the modified PVA exists in an amount allowing a modification rate with respect to the entire PVA-based resin to be in a range of 0.04 mol % to 1.4 mol %.

Abstract translation: 通过在基板上设置PVA类树脂层并将基板和PVA类树脂层一起拉伸来获得偏振膜。 PVA类树脂含有改性PVA，其中改性PVA的存在量允许相对于整个PVA类树脂的改性率在0.04mol％至1.4mol％的范围内。

公开(公告)号：US20160377772A1

公开(公告)日：2016-12-29

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

CPC classification number: G02B5/305 ,  B29C55/02 ,  G02B5/30 ,  G02B5/3025 ,  G02B5/3033 ,  G02B5/3041

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.

Abstract translation: 提供了一种层压体，其包含热塑性树脂基材和形成在热塑性树脂基材上的聚乙烯醇类树脂层，用于形成用后处理的聚乙烯醇类树脂层的偏振膜，所述后处理至少包含染色步骤 用二向色材料对聚乙烯醇系树脂层进行染色，在形成于热塑性树脂基板上的聚乙烯醇系树脂层之后进行的后处理与热塑性树脂基材一起拉伸，其中，聚乙烯醇类树脂层包含聚乙烯醇系树脂层 醇基树脂和卤化物。

公开(公告)号：US20160103258A1

公开(公告)日：2016-04-14

申请号：US14970113

申请日：2015-12-15

Applicant: NITTO DENKO CORPORATION

Inventor： Takeharu KITAGAWA ,  Takuya NAKAZONO ,  Shusaku GOTO ,  Minoru MIYATAKE ,  Tomohiro MORI ,  Takashi KAMIJO

IPC: G02B5/30

CPC classification number: G02B5/305 ,  B32B41/00 ,  B32B2457/20 ,  G02B5/3033

Abstract: Disclosed is a method of producing a roll of an optical film laminate strip including a polarizing film which has a thickness of 10 μm or less. The method comprises the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching, to attain a stretching ratio of 5 to 8.5 to thereby reduce a thickness of the polyvinyl alcohol type resin layer to 10 μm or less, and an absorption sub-step of causing a dichroic material to be absorbed in the polyvinyl alcohol type resin layer; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll.

Abstract translation: 公开了一种制造包括厚度为10μm以下的偏光膜的光学膜层叠条的卷的方法。 该方法包括以下步骤：形成包括由聚乙烯醇型树脂层组成的厚度为10μm以下的偏振膜的光学膜层叠体的连续纤维网，其中通过进行拉伸子层而形成偏振膜， 将包含热塑性树脂基材的连续纤维网和形成在基材上的聚乙烯醇型树脂层的层压体在基于预备的空气内拉伸的2段拉伸和层压板的长度方向上的单轴拉伸下进行的步骤 硼酸 - 酸溶液拉伸，达到5〜8.5的拉伸比，从而将聚乙烯醇型树脂层的厚度减小到10μm以下，以及使二色性材料吸收的吸收子步骤 在聚乙烯醇型树脂层中; 沿着与长度方向平行的方向切割光学膜层压板的连续卷材以形成具有给定宽度的至少一个连续的层压条带; 并将具有给定宽度的层压带的连续卷材卷绕成卷。