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1. WO2020184137 - POLARIZING FILM, POLARIZING PLATE AND METHOD FOR PRODUCING POLARIZING FILM

Publication Number WO/2020/184137
Publication Date 17.09.2020
International Application No. PCT/JP2020/006839
International Filing Date 20.02.2020
IPC
G02B 5/30 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
B29C 55/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
06parallel with the direction of feed
B29K 29/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
29Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals as moulding material
B29L 9/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
9Layered products
CPC
B29C 55/06
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
06parallel with the direction of feed
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
Applicants
  • 日東電工株式会社 NITTO DENKO CORPORATION [JP]/[JP]
Inventors
  • 森崎 真由美 MORISAKI Mayumi
  • 後藤 周作 GOTO Shusaku
  • 嶋津 亮 SHIMAZU Ryo
Agents
  • 籾井 孝文 MOMII Takafumi
Priority Data
2019-04549913.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POLARIZING FILM, POLARIZING PLATE AND METHOD FOR PRODUCING POLARIZING FILM
(FR) FILM POLARISANT, PLAQUE POLARISANTE ET PROCÉDÉ DE PRODUCTION DE FILM POLARISANT
(JA) 偏光膜、偏光板、および該偏光膜の製造方法
Abstract
(EN)
The present invention provides a polarizing film which has high single transmittance, while exhibiting excellent durability in a high-temperature high-humidity environment. A polarizing film according to the present invention is configured of a polyvinyl alcohol resin film that contains iodine; and at least one surface of this polarizing film is provided with a layer that contains a titanium compound. In one embodiment of the present invention, the titanium compound is a water-soluble organic titanium compound. A polarizing plate according to the present invention comprises the above-described polarizing film and a protective layer that is arranged on at least one side of the polarizing film.
(FR)
La présente invention concerne un film polarisant qui a une transmittance unique élevée, tout en présentant une excellente durabilité dans un environnement à haute température et humidité élevée. Un film polarisant selon la présente invention est constitué d'un film de résine d'alcool polyvinylique qui contient de l'iode ; et au moins une surface de ce film polarisant est pourvue d'une couche qui contient un composé de titane. Dans un mode de réalisation de la présente invention, le composé de titane est un composé de titane organique soluble dans l'eau. Une plaque polarisante selon la présente invention comprend le film polarisant décrit ci-dessus et une couche protectrice qui est disposée sur au moins un côté du film polarisant.
(JA)
高い単体透過率を有し、かつ、高温高湿環境下における耐久性に優れた偏光膜が提供される。本発明の偏光膜は、ヨウ素を含むポリビニルアルコール系樹脂フィルムで構成され、少なくとも一方の面にチタン化合物を含む層を有する。1つの実施形態においては、チタン化合物は水溶性の有機チタン化合物である。本発明の偏光板は、上記の偏光膜と、偏光膜の少なくとも一方の側に配置された保護層とを有する。
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