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1. (WO2019026577) TRANSPARENT ADHESIVE OPTICAL SHEET, LAMINATE AND BONDED STRUCTURE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/026577 International Application No.: PCT/JP2018/026156
Publication Date: 07.02.2019 International Filing Date: 11.07.2018
IPC:
C09J 7/38 (2018.01) ,B32B 7/02 (2006.01) ,B32B 27/00 (2006.01) ,B32B 27/40 (2006.01) ,C09J 133/00 (2006.01) ,C09J 175/04 (2006.01) ,C09J 201/00 (2006.01)
[IPC code unknown for C09J 7/38]
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
7
Layered products characterised by the relation between layers, i.e. products essentially comprising layers having different physical properties or products characterised by the interconnection of layers
02
in respect of physical properties, e.g. hardness
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
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
40
comprising polyurethanes
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
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
175
Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
04
Polyurethanes
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
201
Adhesives based on unspecified macromolecular compounds
Applicants:
バンドー化学株式会社 BANDO CHEMICAL INDUSTRIES, LTD. [JP/JP]; 兵庫県神戸市中央区港島南町4丁目6番6号 6-6, Minatojima Minamimachi 4-chome, Chuo-ku, Kobe-shi, Hyogo 6500047, JP
Inventors:
内藤 寛樹 NAITO, Hiroki; JP
高木 大輔 TAKAGI, Daisuke; JP
Agent:
特許業務法人 安富国際特許事務所 YASUTOMI & ASSOCIATES; 大阪府大阪市淀川区宮原3丁目5番36号 5-36, Miyahara 3-chome, Yodogawa-ku, Osaka-shi, Osaka 5320003, JP
Priority Data:
2017-15027602.08.2017JP
Title (EN) TRANSPARENT ADHESIVE OPTICAL SHEET, LAMINATE AND BONDED STRUCTURE
(FR) FEUILLE OPTIQUE ADHÉSIVE TRANSPARENTE, STRATIFIÉ ET STRUCTURE LIÉE
(JA) 光学透明粘着シート、積層体、及び、貼り合わせ構造物
Abstract:
(EN) The present invention provides a transparent adhesive optical sheet which has excellent flexibility, while being suppressed in the occurrence of delayed bubbles in a high-temperature high-humidity environment. A transparent adhesive optical sheet according to the present invention sequentially comprises a first surficial adhesive layer, an intermediate adhesive layer and a second surficial adhesive layer in this order. The storage elastic moduli of the first surficial adhesive layer and the second surficial adhesive layer at 85°C are higher than the storage elastic modulus of the intermediate adhesive layer at 85°C; the storage elastic moduli of the first surficial adhesive layer and the second surficial adhesive layer at 85°C are from 3.0 × 104 Pa to 30.0 × 104 Pa (inclusive); the storage elastic modulus of the intermediate adhesive layer at 85°C is from 1.0 × 104 Pa to 15.0 × 104 Pa (inclusive); and the intermediate adhesive layer contains a polyurethane.
(FR) La présente invention concerne une feuille optique adhésive transparente qui présente une excellente flexibilité, sans être sujette à l'apparition de bulles retardées dans un environnement à haute température et humidité élevée. Une feuille optique adhésive transparente selon la présente invention comprend séquentiellement une première couche adhésive superficielle, une couche adhésive intermédiaire et une seconde couche adhésive superficielle dans cet ordre. Les modules d'élasticité de stockage de la première couche adhésive superficielle et de la seconde couche adhésive superficielle à 85 °C sont supérieurs au module d'élasticité de stockage de la couche adhésive intermédiaire à 85 °C ; les modules d'élasticité de stockage de la première couche adhésive superficielle et de la seconde couche adhésive superficielle à 85 °C sont de 3,0 × 104 Pa à 30,0 × 104 Pa (inclus) ; le module d'élasticité de stockage de la couche adhésive intermédiaire à 85 °C est de 1,0 × 104 Pa à 15,0 × 104 Pa (inclus) ; et la couche adhésive intermédiaire contient un polyuréthane.
(JA) 本発明は、柔軟性に優れ、かつ、高温・高湿環境下におけるディレイバブルの発生が抑制された光学透明粘着シートを提供する。本発明の光学透明粘着シートは、第一の表面粘着剤層と、中間粘着剤層と、第二の表面粘着剤層とをこの順に有し、85℃における上記第一の表面粘着剤層及び上記第二の表面粘着剤層の貯蔵弾性率は、85℃における上記中間粘着剤層の貯蔵弾性率よりも高く、85℃における上記第一の表面粘着剤層及び上記第二の表面粘着剤層の貯蔵弾性率は、3.0×10Pa以上、30.0×10Pa以下であり、85℃における上記中間粘着剤層の貯蔵弾性率は、1.0×10Pa以上、15.0×10Pa以下であり、上記中間粘着剤層はポリウレタンを含有する光学透明粘着シートである。
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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, 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, JP, 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)