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1. WO2020196659 - METHOD FOR PRODUCING CHOLESTERIC LIQUID CRYSTAL FILM

Publication Number WO/2020/196659
Publication Date 01.10.2020
International Application No. PCT/JP2020/013430
International Filing Date 25.03.2020
IPC
G02B 5/30 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
B05D 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05D 3/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
12by mechanical means
B05D 5/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
5Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
06to obtain multicolour or other optical effects
G02B 5/08 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
08Mirrors
Applicants
  • 富士フイルム株式会社 FUJIFILM CORPORATION [JP]/[JP]
Inventors
  • 國安 諭司 KUNIYASU, Satoshi
  • 齋川 保 SAIKAWA, Tamotsu
  • 市橋 光芳 ICHIHASHI, Mitsuyoshi
  • 中山 元 NAKAYAMA, Hajime
  • 遠山 浩史 TOYAMA, Hirofumi
Agents
  • 特許業務法人太陽国際特許事務所 TAIYO, NAKAJIMA & KATO
Priority Data
2019-06485328.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCING CHOLESTERIC LIQUID CRYSTAL FILM
(FR) PROCÉDÉ DE PRODUCTION D'UN FILM DE CRISTAUX LIQUIDES CHOLESTÉRIQUE
(JA) コレステリック液晶膜の製造方法
Abstract
(EN)
One embodiment of the present invention provides a method for producing a cholesteric liquid crystal film wherein helical axes are aligned to be parallel to the film plane direction, while being perpendicular to the shear direction. This method for producing a cholesteric liquid crystal film comprises: a step A wherein a coating film is formed by applying a coating liquid, which contains a solvent, a calamitic thermotropic liquid crystal compound and a chiral agent, onto a base material; a step B wherein the formed coating film is dried until the residual solvent ratio in the formed coating film falls to 50% by mass or less; and a step C wherein a shear force is applied to the surface of the coating film after drying.
(FR)
Un mode de réalisation de la présente invention concerne un procédé de production d'un film à cristaux liquides cholestérique dans lequel des axes hélicoïdaux sont alignés pour être parallèles à la direction du plan de film, tout en étant perpendiculaires à la direction de cisaillement. Ce procédé de production d'un film à cristaux liquides cholestériques comprend une étape A dans laquelle un film de revêtement est formé par application d'un liquide de revêtement qui contient un solvant, un composé de cristaux liquides thermotropes calamitiques et un agent chiral, sur un matériau de base ; une étape B dans laquelle le film de revêtement formé est séché jusqu'à ce que le rapport de solvant résiduel dans le film de revêtement formé tombe à 50 % en masse ou moins ; et une étape C dans laquelle une force de cisaillement est appliquée à la surface du film de revêtement après séchage.
(JA)
本発明の一実施形態は、基材上に、溶媒、棒状サーモトロピック液晶化合物、及びキラル剤を含む塗布液を塗布し、塗膜を形成する工程Aと、形成された塗膜中の残存溶媒率を50質量%以下まで乾燥させる工程Bと、乾燥後の塗膜表面にせん断力を付与する工程Cと、を有する、らせん軸が膜面方向に平行で且つせん断方向に垂直に沿って並ぶコレステリック液晶膜の製造方法を提供する。
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