# US 2026/0098136 A1 · Laminate, touch panel member, and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0098136 A1 - Document ID: US20260098136A1 - Status: Published application - Kind: A1 - Application number: 19/112,929 - Filed: 2023-09-19 - Published: 2026-04-09 - Earliest claimed: 2022-09-20 - Assignees: Dai Nippon Printing Co., Ltd. - Applicants: Dai Nippon Printing Co., Ltd. - Inventors: Kazuki YABUMOTO; Norihiko WANITA; Kazuya HONDA; Kenichi ONODERA; Kohei SHIGEYOSHI; Asaka OKANO - Web page: https://patentgrep.com/patent/US20260098136A1 ## CPC - C08J 7/042: {with two or more layers, where at least one layer of a composition contains a polymer binder} - B32B 7/023: Optical properties - B32B 27/00: Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)} - B32B 27/30: comprising vinyl {(co)polymers; comprising acrylic (co)polymers} - B32B 27/34: comprising polyamides - B32B 27/36: comprising polyesters - C08J 7/046: Forming abrasion-resistant coatings; Forming surface-hardening coatings - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - C08J 2377/06: Polyamides derived from polyamines and polycarboxylic acids (C08J2377/10 takes precedence) - G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract The present disclosure provides a layered body including an optical resin layer, a first intermediate layer, a second intermediate layer, and a resin substrate in this order, wherein each of the first intermediate layer and the second intermediate layer contains a first component configuring the resin substrate. ## Claims ### Claim 1 A layered body comprising: an optical resin layer; a first intermediate layer; a second intermediate layer; and a resin substrate, in this order, wherein each of the first intermediate layer and the second intermediate layer comprises a first component forming the resin substrate. ### Claim 2 (depends on 1) The layered body according to claim 1, wherein a ratio of a content of the first component in each of the layers relative to a content of the first component in the resin substrate increases in an order of the optical resin layer, the first intermediate layer, the second intermediate layer, and the resin substrate. ### Claim 3 (depends on 2) The layered body according to claim 2, wherein as the content of the first component in the resin substrate is 100%, the ratio of the content of the first component in the second intermediate layer relative to the content of the first component in the resin substrate is in a range from 50% to 95%, the ratio of the content of the first component in the first intermediate layer relative to the content of the first component in the resin substrate is in a range from 10% to 50%, and the ratio of the content of the first component in the optical resin layer relative to the content of the first component in the resin substrate is in a range from 0% to 10%. ### Claim 4 (depends on 1) The layered body according to claim 1, wherein each of the first intermediate layer and the second intermediate layer comprises a second component forming the optical resin layer. ### Claim 5 (depends on 1) The layered body according to claim 1, wherein an indentation hardness of the optical resin layer is greater than each of an indentation hardness of the first intermediate layer and an indentation hardness of the second intermediate layer, and an indentation hardness of the resin substrate is greater than each of the indentation hardness of the first intermediate layer and the indentation hardness of the second intermediate layer. ### Claim 6 (depends on 5) The layered body according to claim 5, wherein the indentation hardness of the optical resin layer is 400 MPa or more, each of the indentation hardness of the first intermediate layer and the indentation hardness of the second intermediate layer is in a range from 100 MPa to 400 MPa, and the indentation hardness of the resin substrate is in a range from 240 MPa to 600 MPa. ### Claim 7 (depends on 1) The layered body according to claim 1, wherein each of a thickness of the first intermediate layer and a thickness of the second intermediate layer is in a range from 1 μm to 5 μm. ### Claim 8 A layered body comprising: an optical resin layer; an intermediate layer; and a resin substrate, in this order, wherein the intermediate layer comprises a first component forming the resin substrate, and a second component forming the optical resin layer. ### Claim 9 A layered body comprising: an optical resin layer; an intermediate layer; and a resin substrate, in this order, wherein the intermediate layer comprises a first component forming the resin substrate, when the layered body is subjected to an accelerated weathering test according to JIS K 5600-7-8: 1999 described below, and then an adhesive test is performed by a cross-cut tape method according to JIS K 5400-8.5.2, a number of remaining squares among 100 squares is 90 or more, wherein conditions of the accelerated weathering test are: Operation: Method A, Exposure including steam condensation UV lamp: Type 2 UVA (340) Irradiation: Radiated illuminance of 0.63 W/m2, temperature of 23±5° C., black panel temperature of 60±3° C., and irradiation time of 4 hours Steam Condensation: Black panel temperature of 50±3° C., and water condensation time of 4 hours One cycle: the irradiation and the water vapor condensation are sequentially performed to be one cycle, and Cycle number: 12 cycles. ### Claim 10 (depends on 9) The layered body according to claim 9, wherein the intermediate layer comprises a second component forming the optical resin layer. ### Claim 11 (depends on 8) The layered body according to claim 8, wherein a ratio of a content of the first component in each of the layers relative to a content of the first component in the resin substrate increases in an order of the optical resin layer, the intermediate layer, and the resin substrate. ### Claim 12 (depends on 11) The layered body according to claim 11, Wherein as the content of the first component in the resin substrate is 100%, a ratio of a content of the first component in the intermediate layer relative to a content of the first component in the resin substrate is in a range from 10% to 95%, and a ratio of a content of the first component in the optical resin layer relative to a content of the first component in the resin substrate is in a range from 0% to 10%. ### Claim 13 (depends on 8) The layered body according to claim 8, wherein an indentation hardness of the optical resin layer is greater than an indentation hardness of the intermediate layer, and an indentation hardness of the resin substrate is greater than the indentation hardness of the intermediate layer. ### Claim 14 (depends on 13) The layered body according to claim 13, wherein the indentation hardness of the optical resin layer is 400 MPa or more, the indentation hardness of the intermediate layer is in a range from 100 MPa to 400 MPa, and the indentation hardness of the resin substrate is in a range from 240 MPa to 600 MPa. ### Claim 15 (depends on 8) The layered body according to claim 8, wherein a thickness of the intermediate layer is in a range from 1 μm to 5 μm. ### Claim 16 (depends on 1) The layered body according to claim 1, wherein the resin substrate comprises a resin component including at least one structure selected from the group consisting of an imide skeleton, an amide skeleton, and an ester skeleton. ### Claim 17 (depends on 1) The layered body according to claim 1, wherein a thickness of the optical resin layer is in a range from 1 μm to 20 μm. ### Claim 18 (depends on 1) A touch panel member comprising the layered body according to claim 1, on a surface thereof. ### Claim 19 (depends on 1) A display device comprising: a display panel; and the layered body according to claim 1, disposed on an observer side of the display panel.