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1. WO2020067165 - COVER FILM

Publication Number WO/2020/067165
Publication Date 02.04.2020
International Application No. PCT/JP2019/037616
International Filing Date 25.09.2019
IPC
G02B 1/14 2015.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
10Optical coatings produced by application to, or surface treatment of, optical elements
14Protective coatings, e.g. hard coatings
B32B 7/022 2019.01
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
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
022Mechanical properties
B32B 27/18 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
18characterised by the use of special additives
CPC
B32B 27/18
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
18characterised by the use of special additives
B32B 7/022
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
022Mechanical properties
G02B 1/14
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
10Optical coatings produced by application to, or surface treatment of, optical elements
14Protective coatings, e.g. hard coatings
Applicants
  • グンゼ株式会社 GUNZE LIMITED [JP]/[JP]
Inventors
  • 斎藤 隆太 SAITOH, Ryuta
Agents
  • 立花 顕治 TACHIBANA, Kenji
  • 山下 未知子 YAMASHITA, Michiko
  • 桝田 剛 MASUDA, Tsuyoshi
Priority Data
2018-18251427.09.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COVER FILM
(FR) FILM DE RECOUVREMENT
(JA) カバーフィルム
Abstract
(EN)
A cover film according to the present invention comprises: a transparent base film; a first hard coat layer laminated on at least one surface of the base film; an adhesive layer laminated on the first hard coat layer; and a second hard coat layer laminated on the adhesive layer, having a film thickness that is thinner than that of the first hard coat layer, and containing a fluorine-based additive, wherein the surface pencil hardness of the first hard coat layer is 7 H or more, and the surface pencil hardness of the second hard coat layer is 2 H to 6 H inclusive.
(FR)
La présente invention concerne un film de recouvrement qui comporte : un film de base transparent, une première couche de revêtement dur stratifiée sur au moins une surface du film de base, une couche adhésive stratifiée sur la première couche de revêtement dur et une seconde couche de revêtement dur stratifiée sur la couche adhésive, ayant une épaisseur de film qui est plus fine que celle de la première couche de revêtement dur, et contenant un additif à base de fluor, où la dureté de crayon de surface de la première couche de revêtement dur est supérieure ou égale à 7 H, et la dureté de crayon de surface de la seconde couche de revêtement dur est de 2 H à 6 H inclus.
(JA)
本発明に係るカバーフィルムは、透明の基材フィルムと、前記基材フィルムの少なくとも一方の面に積層された第1ハードコート層と、前記第1ハードコート層上に積層される接着層と、前記接着層上に積層され、前記第1ハードコート層よりも膜厚が小さく、フッ素系添加剤が含有される第2ハードコート層と、を備え、前記第1ハードコート層の表面鉛筆硬度は、7H以上であり、前記第2ハードコート層の表面鉛筆硬度は、2H以上6H以下である。
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