公开(公告)号：US20170299920A1

公开(公告)日：2017-10-19

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 ,  G02B5/30 ,  C09J133/06 ,  C09J133/02 ,  C09J129/04 ,  G02F1/13363 ,  C08K5/00

CPC classification number: G02F1/133528 ,  C08K3/38 ,  C08K5/0025 ,  C09J129/04 ,  C09J133/02 ,  C09J133/06 ,  G02B5/3033 ,  G02B5/305 ,  G02F1/133632 ,  C08L29/04

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.

公开(公告)号：US20190049642A1

公开(公告)日：2019-02-14

申请号：US16079685

申请日：2017-01-23

Applicant: NITTO DENKO CORPORATION

Inventor： Tomonori Ueno ,  Satoshi Mita ,  Jingfan Xu ,  Yusuke Motegi ,  Atsushi Kishi

IPC: G02B5/30 ,  C09J7/38 ,  G02F1/1335 ,  B29D11/00

Abstract: A polarizer according to the patent invention is configured to contain boric acid and a polyvinyl alcohol-based resin, to have a thickness of 10 μm or less, and to have an optical property satisfying the condition represented by the expression: P>−(100.929T-42.4−1)×100 (when T

公开(公告)号：US10094954B2

公开(公告)日：2018-10-09

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

IPC: G02B1/14 ,  C09J7/29 ,  C09J5/00 ,  G02B5/30

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

公开(公告)号：US20180031746A1

公开(公告)日：2018-02-01

申请号：US15550202

申请日：2016-02-10

Applicant: NITTO DENKO CORPORATION

Inventor： Tomonori Ueno ,  Satoshi Mita ,  Yusuke Motegi ,  Jingfan Xu ,  Atsushi Kishi

IPC: G02B5/30 ,  B32B37/12 ,  B32B27/30 ,  B32B27/08 ,  G02F1/1335 ,  C09J7/02

CPC classification number: G02B5/305 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/18 ,  B32B27/26 ,  B32B27/30 ,  B32B27/304 ,  B32B27/306 ,  B32B27/36 ,  B32B37/1284 ,  B32B2037/243 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2260/046 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2457/20 ,  B32B2457/206 ,  C08K3/105 ,  C08K5/42 ,  C08K5/435 ,  C09J7/385 ,  C09J2201/122 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2429/006 ,  G02B5/3033 ,  G02F1/1335

Abstract: The pressure-sensitive-adhesive-layer-attached polarizing film of the present invention has, in this order, a polarizer containing a polyvinyl alcohol-based resin, a transparent resin layer containing a polyvinyl alcohol-based resin, and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition containing at least 0.1 parts by weight of an alkali metal salt with respect to 100 parts by weight of a base polymer, and satisfying the general expression (Y/X)≦3, where X is the abundance ratio of the alkali metal salt in a center part in the thickness direction of the pressure-sensitive adhesive layer, and Y is the abundance ratio of the alkali metal salt in the interface between the pressure-sensitive adhesive layer and the transparent resin layer. In the pressure-sensitive-adhesive-layer-attached polarizing film, the anchoring power of the transparent resin layer and the pressure-sensitive adhesive layer is good, and the antistatic function of the pressure-sensitive adhesive layer is also good.

公开(公告)号：US20170299790A1

公开(公告)日：2017-10-19

申请号：US15515887

申请日：2015-09-29

Applicant: NITTO DENKO CORPORATION

Inventor： Tomonori Ueno ,  Satoshi Mita ,  Yusuke Motegi ,  Jingfan Xu ,  Atsushi Kishi ,  Minoru Miyatake

IPC: G02B5/30 ,  B32B7/02 ,  G02B1/14 ,  B32B27/08 ,  B32B27/30 ,  B32B37/12

CPC classification number: G02B5/305 ,  B32B7/02 ,  B32B27/08 ,  B32B27/306 ,  B32B37/02 ,  B32B37/12 ,  B32B37/182 ,  B32B38/10 ,  B32B2038/045 ,  B32B2307/308 ,  B32B2307/42 ,  B32B2457/20 ,  B32B2551/00 ,  G02B1/14 ,  G02B5/3025 ,  G02B5/3033 ,  G02B5/3041

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

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

公开(公告)号：US20190129072A1

公开(公告)日：2019-05-02

申请号：US16086751

申请日：2017-03-16

Applicant: NITTO DENKO CORPORATION

Inventor： Tomonori Ueno ,  Satoshi Mita ,  Atsushi Kishi ,  Kentaro Ikeshima ,  Yusuke Motegi

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

Abstract: A surface-protective film-attached polarizing film is disclosed which includes a polarizing film (A) having a thickness of 100 μm or less, and a surface-protective film (B) provided on at least one surface of the polarizing film (A), wherein the polarizing film (A) comprises a polarizer, and a protective film provided on at least one surface of the polarizer, the polarizer comprises a polyvinyl alcohol-based resin and has a thickness of 10 μm or less, the polarizing film (A) has a width WA, the surface-protective film (B) has a width WB, a difference between the widths WA and WB (WA−WB) is 3 mm or more, and a peel strength of the surface-protective film (B) to the polarizing film (A) is 0.2 N/25-mm or less. The surface-protective film-attached polarizing film allows to be restrained the polarizing film from being broken, when the surface-protective film is peeled from the polarizing film.

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

IPC: G02B5/30 ,  B32B7/12 ,  B32B27/30 ,  B32B27/18 ,  C08L29/04 ,  C08K3/38

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.

公开(公告)号：US20170235023A1

公开(公告)日：2017-08-17

申请号：US15514710

申请日：2015-09-29

Applicant: NITTO DENKO CORPORATION

Inventor： Satoshi Mita ,  Tomonori Ueno ,  Yusuke Motegi ,  Yasutaka Ishihara ,  Ayami Nakato ,  Atsushi Kishi

IPC: G02B1/14 ,  G02F1/1335 ,  C09J7/02 ,  C09D129/04 ,  C09D7/12

CPC classification number: G02B1/14 ,  C08K3/38 ,  C09D129/04 ,  C09J7/29 ,  C09J133/26 ,  C09J2201/122 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2203/326 ,  C09J2429/006 ,  C09J2433/00 ,  C09J2467/00 ,  G02B5/3033 ,  G02F1/133528 ,  G02F2202/28

Abstract: 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