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1. (WO2017033741) ADHESIVE LAYER FOR OPTICAL MEMBERS, ADHESIVE LAYER-PROVIDED OPTICAL MEMBER, AND IMAGE DISPLAY DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/033741 International Application No.: PCT/JP2016/073457
Publication Date: 02.03.2017 International Filing Date: 09.08.2016
IPC:
C09J 133/04 (2006.01) ,C09J 7/00 (2006.01) ,C09J 11/08 (2006.01) ,C09J 133/06 (2006.01) ,G02B 5/02 (2006.01)
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133
Adhesives 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
04
Homopolymers or copolymers of esters
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7
Adhesives in the form of films or foils
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
11
Features of adhesives not provided for in group C09J9/76
08
Macromolecular additives
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133
Adhesives 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
04
Homopolymers or copolymers of esters
06
of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
02
Diffusing elements; Afocal 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:
保井 淳 YASUI,Atsushi; JP
寳田 翔 TAKARADA,Shou; JP
澤▲崎▼ 良平 SAWAZAKI,Ryohei; JP
山本 真也 YAMAMOTO,Shinya; 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:
2015-16588825.08.2015JP
Title (EN) ADHESIVE LAYER FOR OPTICAL MEMBERS, ADHESIVE LAYER-PROVIDED OPTICAL MEMBER, AND IMAGE DISPLAY DEVICE
(FR) COUCHE ADHÉSIVE POUR ÉLÉMENTS OPTIQUES, ÉLÉMENT OPTIQUE POURVU D'UNE COUCHE ADHÉSIVE, ET DISPOSITIF D'AFFICHAGE D'IMAGES
(JA) 光学部材用粘着剤層、粘着剤層付光学部材、及び画像表示装置
Abstract:
(EN) A purpose of the present invention is to provide an adhesive layer for optical members, which can be used to attach large and thin optical members or uneven optical members to each other, and which has a light diffusing function. Another purpose of the present invention is to provide: an adhesive layer-provided optical member having at least one layer of the adhesive layer for optical members, on at least one surface of the optical member; and an image display device including the adhesive layer-provided optical member. The adhesive layer for optical members is characterized by: being formed of a base adhesive composition containing a (meth)acrylic polymer and light diffusing particles; including at least one layer of a light diffusing adhesive layer having a thickness of 5-300 μm; having an overall thickness of 20 μm or more; and having a haze of 10-96%.
(FR) Un des objets de la présente invention est de pourvoir à une couche adhésive pour éléments optiques, qui peut être utilisée pour fixer des éléments optiques minces et de grandes dimensions, voire des éléments optiques irréguliers les uns aux autres, et qui a une fonction de diffusion de lumière. Un autre objet de la présente invention est de pourvoir à : un élément optique pourvu d'une couche adhésive comportant au moins une couche de ladite couche adhésive pour éléments optiques, sur au moins une de ses surfaces ; et un dispositif d'affichage d'images comprenant l'élément optique pourvu d'une couche adhésive. La couche adhésive pour éléments optiques selon l'invention est caractérisée en ce qu'elle est formée à partir d'une composition adhésive de base contenant un polymère (méth)acrylique et des particules de diffusion de lumière ; en ce qu'elle comprend au moins une couche de ladite couche adhésive à diffusion de lumière d'une épaisseur de 5 à 300 µm ; et en ce qu'elle a une épaisseur totale de 20 µm ou plus ; et un voile de 10 à 96 %.
(JA) 本発明は、大型化、薄膜化された各種光学部材や段差を有する光学部材を貼り合せることができ、かつ、光拡散機能を有する光学部材用粘着剤層を提供することを目的とする。また、本発明は、光学部材の少なくとも一方の面に、前記光学部材用粘着剤層を少なくとも1層有する粘着剤層付光学部材、前記粘着剤層付光学部材を含む画像表示装置を提供することも目的とする。 (メタ)アクリル系ポリマーを含有するベース粘着剤組成物及び光拡散性微粒子から形成され、厚みが5~300μmである光拡散粘着剤層を少なくとも1層含み、粘着剤層全体としての厚みが20μm以上であり、ヘイズが10~96%であることを特徴とする光学部材用粘着剤層である。
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, KE, KG, KN, KP, KR, 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)