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1. WO2020095828 - SURFACE PROTECTION FILM AND OPTICAL MEMBER

Publication Number WO/2020/095828
Publication Date 14.05.2020
International Application No. PCT/JP2019/042963
International Filing Date 01.11.2019
IPC
C09J 7/29 2018.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
20characterised by their carriers
29Laminated material
C09J 7/25 2018.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
20characterised by their carriers
22Plastics; Metallised plastics
25based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
C09J 7/38 2018.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
30characterised by the adhesive composition
38Pressure-sensitive adhesives
C09J 133/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
C09J 175/04 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
04Polyurethanes
Applicants
  • 日東電工株式会社 NITTO DENKO CORPORATION [JP]/[JP]
Inventors
  • 山形真人 YAMAGATA, Masato
  • 沖田奈津子 OKITA, Natsuko
Agents
  • 特許業務法人後藤特許事務所 GOTO & CO.
Priority Data
2018-20882606.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SURFACE PROTECTION FILM AND OPTICAL MEMBER
(FR) FILM DE PROTECTION DE SURFACE ET ÉLÉMENT OPTIQUE
(JA) 表面保護フィルムおよび光学部材
Abstract
(EN)
The purpose of the present invention is to provide: a surface protection film that is suitable for coating and protecting a to-be-protected surface having a non-flat part such as a curved part or a bent part; and an optical member equipped with such a surface protection film. The surface protection film according to the present invention is a film 10 having a laminate structure comprising a substrate film 11 and an adhesive layer 12. The storage elastic modulus of the substrate film 11 at 130°C is 700 MPa or less. The storage elastic modulus of the substrate film 11 at 30°C is 1000 MPa or more. The optical member 20 according to the present invention comprises the film 10 as a surface protection film.
(FR)
La présente invention a pour objet : un film de protection de surface qui est approprié pour le revêtement et la protection d'une surface à protéger comprenant une partie non plate telle qu'une partie incurvée ou une partie cintrée ; et un élément optique pourvu d'un tel film de protection de surface. Le film de protection de surface selon la présente invention est un film (10) ayant une structure stratifiée comprenant un film de substrat (11) et une couche adhésive (12). Le module d'élasticité de stockage du film de substrat (11) à 130 °C est inférieur ou égal à 700 MPa. Le module d'élasticité de stockage du film de substrat (11) à 30 °C est supérieur ou égal à 1000 MPa. L'élément optique (20) selon la présente invention comprend le film (10) en tant que film de protection de surface.
(JA)
本発明は、湾曲箇所や屈曲箇所など非平坦箇所を有する保護対象面を被覆保護するのに適した表面保護フィルム、および、そのような表面保護フィルムを伴う光学部材を、提供することを目的とする。 本発明の表面保護フィルムであるフィルム10は、基材フィルム11と粘着剤層12とを含む積層構造を有する。基材フィルム11の130℃での貯蔵弾性率は700MPa以下であり、且つ、基材フィルム11の30℃での貯蔵弾性率は1000MPa以上である。本発明の光学部材20は、表面保護フィルムとしてのフィルム10を含む。
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