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1. (WO2018123693) SURFACE-PROTECTIVE FILM
PCT Biblio. Data
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Pub. No.:
WO/2018/123693
International Application No.:
PCT/JP2017/045339
Publication Date:
05.07.2018
International Filing Date:
18.12.2017
IPC:
C09J 7/20
(2018.01) ,
C09J 7/40
(2018.01) ,
B32B 5/18
(2006.01) ,
B32B 27/00
(2006.01) ,
G02B 5/30
(2006.01)
[IPC code unknown for C09J 7/20][IPC code unknown for C09J 7/40]
B
PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5
Layered products characterised by the non-homogeneity or physical structure of a layer
18
characterised by features of a layer containing foamed or specifically porous material
B
PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
G
PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
Applicants:
日東電工株式会社 NITTO DENKO CORPORATION
[JP/JP]; 大阪府茨木市下穂積1丁目1番2号 1-1-2,Shimohozumi,Ibaraki-shi, Osaka 5678680, JP
Inventors:
渡部 奈津子 WATANABE,Natsuko
; JP
三井 数馬 MITSUI,Kazuma
; JP
野中 崇弘 NONAKA,Takahiro
; JP
Agent:
特許業務法人 ユニアス国際特許事務所 UNIUS PATENT ATTORNEYS OFFICE
; 大阪府大阪市淀川区西中島5丁目13-9 新大阪MTビル1号館2階 First Shin-Osaka MT Bldg. 2nd Floor, 5-13-9 Nishinakajima, Yodogawa-ku, Osaka-shi, Osaka 5320011, JP
Priority Data:
2016-256362
28.12.2016
JP
Title
(EN)
SURFACE-PROTECTIVE FILM
(FR)
FILM PROTECTEUR DE SURFACE
(JA)
表面保護フィルム
Abstract:
(EN)
The present invention provides a surface-protective film for optical use provided with a separator layered on the surface-protective film for optical use, in which voids are provided in a polyester-based substrate constituting the separator and the specific gravity of the polyester-based substrate is kept low, whereby the weight of the separator as such is kept low and the separator has excellent workability, and the occurrence of dents due to the separator can be suppressed by the excellent cushioning properties of the separator obtained by having voids. This surface-protective film for optical use provided with a separator has a surface-protective film for optical use having an adhesive layer on at least one surface of a substrate film, and a separator on the reverse surface of the substrate film from the surface thereof in contact with the adhesive layer, and is characterized in that the separator has a release layer and a polyester-based substrate, the separator having voids in the polyester-based substrate, and the specific gravity of the polyester-based substrate being 1.2 g/cm
3
or less.
(FR)
La présente invention concerne un film protecteur de surface à usage optique comprenant un séparateur stratifié sur le film protecteur de surface à usage optique, dans lequel des vides sont formés dans un substrat à base de polyester constituant le séparateur et la masse volumique du substrat à base de polyester est maintenue basse, ce par quoi le poids du séparateur en tant que tel est maintenu bas et le séparateur a une excellente aptitude au façonnage, et l'apparition de bosses due au séparateur peut être supprimée par les excellentes propriétés d'amortissement du séparateur obtenues par la présence des vides. Le film protecteur de surface à usage optique comprenant un séparateur comprend un film protecteur de surface à usage optique ayant une couche adhésive sur au moins une surface d'un film de substrat, et un séparateur sur la surface verso du film de substrat à partir de sa surface en contact avec la couche adhésive, et est caractérisé en ce que le séparateur comprend une couche de décollement et un substrat à base de polyester, le séparateur ayant des vides dans le substrat à base de polyester, et la masse volumique du substrat à base de polyester étant de 1,2 g/cm
3
ou moins.
(JA)
本発明は、光学用表面保護フィルムに積層するセパレータを構成するポリエステル系基材に空洞を設け、ポリエステル系基材の比重を低く抑えることで、セパレータ自体の重量を低く抑え、作業性に優れ、更に、空洞を有することで、クッション性に優れたセパレータにより、セパレータに起因する打痕の発生を抑えることができるセパレータ付き光学用表面保護フィルムを提供する。本発明のセパレータ付き光学用表面保護フィルムは、基材フィルムの少なくとも片面に粘着剤層を有する光学用表面保護フィルム、及び、前記基材フィルムの粘着剤層と接触する面と反対面に、セパレータを有するセパレータ付き光学用表面保護フィルムであって、前記セパレータが、離型層とポリエステル系基材を有し、前記ポリエステル系基材中に空洞を有し、前記ポリエステル系基材の比重が1.2g/cm
3
以下であることを特徴とする。
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language:
Japanese (
JA
)
Filing Language:
Japanese (
JA
)