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1. WO2020111056 - POLARIZING FILM, METHOD FOR PRODUCING SAME, AND IMAGE DISPLAY DEVICE

Publication Number WO/2020/111056
Publication Date 04.06.2020
International Application No. PCT/JP2019/046153
International Filing Date 26.11.2019
IPC
B32B 27/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
40comprising polyurethanes
H05B 33/02 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
02Details
H01L 51/50 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
C08G 18/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/32 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
32Polyhydroxy compounds; Polyamines; Hydroxy amines
C08G 18/76 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
74cyclic
76aromatic
CPC
B32B 27/40
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
40comprising polyurethanes
B32B 7/023
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
02Physical, chemical or physicochemical properties
023Optical properties
C08G 18/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/32
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
32Polyhydroxy compounds; Polyamines; Hydroxyamines
C08G 18/76
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
74cyclic
76aromatic
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
  • 石原 康隆 ISHIHARA,Yasutaka
  • 上野 友徳 UENO,Tomonori
Agents
  • 特許業務法人 ユニアス国際特許事務所 UNIUS PATENT ATTORNEYS OFFICE
Priority Data
2018-22365929.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POLARIZING FILM, METHOD FOR PRODUCING SAME, AND IMAGE DISPLAY DEVICE
(FR) FILM POLARISANT, PROCÉDÉ DE PRODUCTION D’UN TEL FILM POLARISANT ET DISPOSITIF D'AFFICHAGE D'IMAGE
(JA) 偏光フィルム、その製造方法および画像表示装置
Abstract
(EN)
The present invention refers to a polarizing film that comprises a polarizer and a functional layer that is directly formed on at least one side of the polarizer, wherein the functional layer is the cured product from a starting material containing (a) a urethane prepolymer that is the reaction product of an isocyanate compound and a polyhydric alcohol and (b) a compound that has at least two functional groups having isocyanate group-reactive active hydrogen, and whose molecular weight is divided by the number of the functional groups to yield a value of not more than 350. A functional layer exhibiting a good adhesiveness to the polarizer and a good cohesion can be efficiently formed with the polarizing film according to the present invention.
(FR)
La présente invention concerne un film polarisant qui comprend un polariseur et une couche fonctionnelle qui est directement formée sur au moins un côté du polariseur, la couche fonctionnelle étant le produit durci provenant d'un matériau de départ contenant (a) un prépolymère d'uréthane qui est le produit de réaction d'un composé isocyanate et d'un alcool polyhydrique et (b) un composé qui comprend au moins deux groupes fonctionnels comprenant un hydrogène actif qui réagit avec le groupe isocyanate, et dont le poids moléculaire est divisé par le nombre de groupes fonctionnels pour obtenir une valeur inférieure ou égale à 350. Une couche fonctionnelle présentant une bonne adhérence au polariseur et une bonne cohésion peut être efficacement formée avec le film polarisant selon la présente invention.
(JA)
本発明は、偏光子、および前記偏光子の少なくとも片面に、直接、形成されている機能層を有する偏光フィルムであって、前記機能層は、イソシアネート化合物と多価アルコールとの反応物であるウレタンプレポリマー(a)、およびイソシアネート基と反応性を有する活性水素を有する官能基を少なくとも2個有し、かつ、分子量を前記官能基の個数で除した値が350以下である化合物(b)を含有する形成材の硬化物である。本発明の偏光フィルムは、偏光子との密着性および凝集力の良好な機能層を効率よく形成することができる。
Also published as
Latest bibliographic data on file with the International Bureau