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公开(公告)号：US10302829B2
公开(公告)日：2019-05-28
申请号：US15549788
申请日：2016-02-09
Applicant: NITTO DENKO CORPORATION
Inventor： Yusuke Motegi , Satoshi Mita , Tomonori Ueno , Atsushi Kishi , Jingfan Xu
Abstract: The present invention pertains to a polarizing film having a transparent resin layer on at least one side of a polarizer containing a polyvinyl alcohol-based resin, wherein the transparent resin layer has a thickness of 0.2 μm or more and is formed from a layer-forming material containing a polyvinyl alcohol-based resin having a saponification degree of 96 mol % or more, and wherein the combined total content of sodium acetate and potassium acetate contained in the transparent resin layer is less than 1 wt %. This polarizing film has crack-resistant properties, and can minimize degradation of the optical characteristics in a heating and humidifying test.
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公开(公告)号：US10247979B2
公开(公告)日：2019-04-02
申请号：US15515890
申请日：2015-09-29
Applicant: NITTO DENKO CORPORATION
Inventor： Satoshi Mita , Tomonori Ueno , Yusuke Motegi , Jingfan Xu , Atsushi Kishi
IPC: G02F1/1335 , C08K5/00 , C09J129/04 , C09J133/02 , C09J133/06 , G02B5/30 , G02F1/133 , G02F1/13363
Abstract: The present invention pertains to a polarizing film having a transparent layer on at least one surface of a polarizer, wherein: the polarizer contains a polyvinyl alcohol-based resin and has a thickness of 15 μm or less; the transparent layer-side of the polarizer has a compatible layer thereon having compatibility with the transparent layer; and the thickness A of the polarizer and the thickness B of the compatible layer satisfy the general formula (100×B/A)≥1. This polarizing film has crack resistance and suppresses changes in the dimensions of the polarizer.
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公开(公告)号：US20170235024A1
公开(公告)日：2017-08-17
申请号：US15515385
申请日：2015-09-29
Applicant: NITTO DENKO CORPORATION
Inventor： Jingfan Xu , Tomonori Ueno , Satoshi Mita , Yusuke Motegi , Atsushi Kishi
CPC classification number: G02B1/14 , C09J5/00 , C09J7/29 , C09J2201/122 , C09J2201/606 , C09J2201/622 , C09J2203/318 , C09J2203/326 , C09J2429/006 , C09J2433/00 , G02B5/3033
Abstract: The present invention pertains to a one-side-protected polarizing film having a transparent protective film on only one surface of a polarizer, wherein: the polarizer contains a polyvinyl alcohol-based resin, has a thickness of 10 μm or less, and is designed to have a single-body transmittance T and a polarization degree P representing optical properties satisfying the condition of the following formula: P>−(100.929T−42.4−1)×100 (provided that T
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公开(公告)号：US10345500B2
公开(公告)日：2019-07-09
申请号：US15549788
申请日：2016-02-09
Applicant: NITTO DENKO CORPORATION
Inventor： Yusuke Motegi , Satoshi Mita , Tomonori Ueno , Atsushi Kishi , Jingfan Xu
Abstract: The present invention pertains to a polarizing film having a transparent resin layer on at least one side of a polarizer containing a polyvinyl alcohol-based resin, wherein the transparent resin layer has a thickness of 0.2 μm or more and is formed from a layer-forming material containing a polyvinyl alcohol-based resin having a saponification degree of 96 mol % or more, and wherein the combined total content of sodium acetate and potassium acetate contained in the transparent resin layer is less than 1 wt %. This polarizing film has crack-resistant properties, and can minimize degradation of the optical characteristics in a heating and humidifying test.
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公开(公告)号：US20180024283A1
公开(公告)日：2018-01-25
申请号：US15549788
申请日：2016-02-09
Applicant: NITTO DENKO CORPORATION
Inventor： Yusuke Motegi , Satoshi Mita , Tomonori Ueno , Atsushi Kishi , Jingfan Xu
Abstract: The present invention pertains to a polarizing film having a transparent resin layer on at least one side of a polarizer containing a polyvinyl alcohol-based resin, wherein the transparent resin layer has a thickness of 0.2 μm or more and is formed from a layer-forming material containing a polyvinyl alcohol-based resin having a saponification degree of 96 mol % or more, and wherein the combined total content of sodium acetate and potassium acetate contained in the transparent resin layer is less than 1 wt %. This polarizing film has crack-resistant properties, and can minimize degradation of the optical characteristics in a heating and humidifying test.
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Patent Agency Ranking
公开(公告)号：US20170299779A1
公开(公告)日：2017-10-19
申请号：US15515948
申请日：2015-09-29
Applicant: NITTO DENKO CORPORATION
Inventor： Satoshi Mita , Tomonori Ueno , Jingfan Xu , Yusuke Motegi , Atsushi Kishi
IPC: G02B1/14 , G02B5/30 , B32B37/12 , B32B7/12 , C09J129/04 , C09J133/02 , G02F1/1335 , C09J163/00
Abstract: The present invention pertains to a one-side-protected polarizing film having a protective film or films on only one surface of a polarizer, wherein: the polarizer contains a polyvinyl alcohol-based resin, and is designed to have a single-body transmittance T and a polarization degree P representing optical properties satisfying the condition of the following formula: P>−(100.99T−42.4−1)×100 (provided that T
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公开(公告)号：US11137522B2
公开(公告)日：2021-10-05
申请号：US15515948
申请日：2015-09-29
Applicant: NITTO DENKO CORPORATION
Inventor： Satoshi Mita , Tomonori Ueno , Jingfan Xu , Yusuke Motegi , Atsushi Kishi
IPC: G02B1/14 , C08F222/10 , C09D129/04 , B32B7/12 , B32B37/12 , C09J129/04 , C09J133/02 , C09J163/00 , G02B5/30 , G02F1/1335 , C09J133/06 , B32B37/00
Abstract: The present invention pertains to a one-side-protected polarizing film having a protective film or films on only one surface of a polarizer, wherein: the polarizer contains a polyvinyl alcohol-based resin, and is designed to have a single-body transmittance T and a polarization degree P representing optical properties satisfying the condition of the following formula: P>−(100.929T−42.4−1)×100 (provided that T
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公开(公告)号：US20200292738A1
公开(公告)日：2020-09-17
申请号：US16086076
申请日：2017-03-17
Applicant: NITTO DENKO CORPORATION
Inventor： Satoshi Mita , Tomonori Ueno , Jingfan Xu , Atsushi Kishi
Abstract: A polarizing film is disclosed including a polarizer having a thickness of 10 μm or less, and a transparent resin layer on at least one surface of the polarizer, wherein the polarizer includes a polyvinyl alcohol-based resin, and has a single-body transmittance T and a polarization degree P representing optical properties satisfying the condition of the following formula: P>−(100.929T-42.4−1)×100(provided that T
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公开(公告)号：US20190025485A1
公开(公告)日：2019-01-24
申请号：US16070082
申请日：2017-01-12
Applicant: NITTO DENKO CORPORATION
Inventor： Satoshi Mita , Tomonori Ueno , Jingfan Xu , Yusuke Motegi , Atsushi Kishi
Abstract: This pressure-sensitive-adhesive-layer-attached one-side-protected polarizing film has a polarizer that contains a polyvinyl alcohol-based resin, contains 20 wt % or less of boric acid relative to the total quantity of the polarizer, has a thickness of 10 μm or less, and has prescribed optical characteristics. The film thickness of the pressure-sensitive adhesive layer is less than 50 μm, and if the storage elastic modulus of the pressure-sensitive adhesive layer at 23° C. is termed G (Pa) and the film thickness of the pressure-sensitive adhesive layer is termed H (μm), G>210e0.2035H is satisfied when 50>H≥32, and G>35000e0.0433H is satisfied when 32>H>0. In this pressure-sensitive-adhesive-layer-attached one-side-protected polarizing film, the polarizer has prescribed optical characteristics, and defects resulting from through cracks and nano-slits can be suppressed.
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公开(公告)号：US11079526B2
公开(公告)日：2021-08-03
申请号：US16086076
申请日：2017-03-17
Applicant: NITTO DENKO CORPORATION
Inventor： Satoshi Mita , Tomonori Ueno , Jingfan Xu , Atsushi Kishi
IPC: G02B5/30 , G02B1/14 , G02F1/1335
Abstract: A polarizing film is disclosed including a polarizer having a thickness of 10 μm or less, and a transparent resin layer on at least one surface of the polarizer, wherein the polarizer includes a polyvinyl alcohol-based resin, and has a single-body transmittance T and a polarization degree P representing optical properties satisfying the condition of the following formula: P>−(100.929T−42.4−1)×100 (provided that T
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