公开(公告)号：US20240294806A1

公开(公告)日：2024-09-05

申请号：US18569826

申请日：2022-06-16

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuji OOHIGASHI ,  Yuki ISHIKAWA ,  Yumiko TERAGUCHI ,  Naoki KAMOSHIDA ,  Yuuki OKADA ,  Kanako URADOKORO

IPC: C09J7/38 ,  B32B17/10 ,  C09J7/10 ,  G02F1/1333

CPC classification number: C09J7/38 ,  B32B17/10036 ,  B32B17/10605 ,  B32B17/10761 ,  C09J7/10 ,  G02F1/133302 ,  B32B2457/202 ,  B32B2457/208 ,  C09J2203/318 ,  C09J2301/302 ,  C09J2400/146 ,  C09J2451/00 ,  G02F2202/28

Abstract: A pressure-sensitive adhesive film which is a pressure-sensitive adhesive film comprising a thermoplastic resin, wherein a maximum peak temperature of tan δ is 0° C. or more and 52° C. or less, a shear storage elastic modulus at 20° C. is 3×105 Pa or more, and a proportion of an undissolved component in dissolution of 1.0 g of the pressure-sensitive adhesive film in 10 g of isopropyl alcohol is 35% by mass or more and 100% by mass or less.

公开(公告)号：US20240287355A1

公开(公告)日：2024-08-29

申请号：US18570824

申请日：2022-06-16

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuji OOHIGASHI ,  Yuki ISHIKAWA ,  Yumiko TERAGUCHI ,  Naoki KAMOSHIDA ,  Yuuki OKADA ,  Kanako URADOKORO

IPC: C09J7/38 ,  B32B7/12 ,  B32B17/10 ,  B32B27/08 ,  B32B27/30 ,  C09J131/04

CPC classification number: C09J7/381 ,  B32B7/12 ,  B32B17/10 ,  B32B17/10036 ,  B32B17/10541 ,  B32B17/10605 ,  B32B17/10761 ,  B32B27/08 ,  B32B27/306 ,  C09J131/04 ,  B32B2307/54 ,  B32B2307/548 ,  B32B2307/7376 ,  B32B2307/748 ,  B32B2457/202 ,  B32B2457/208 ,  C09J2203/318 ,  C09J2431/00

Abstract: The pressure-sensitive adhesive film of the present invention comprises a thermoplastic resin and has a thickness of 150 μm or more and 2000 μm or less, in which an amount of change in thickness of a test sample A in a predetermined compression creep test performed is 50 μm or more and 325 μm or less, and an adhesive force to a polycarbonate base material, as measured by a predetermined pressure-sensitive adhesive force measurement method, is 100 N or more. The laminate of the present invention comprises the pressure-sensitive adhesive film of the present invention, a first organic material substrate, and at least one base material of second organic material substrate and inorganic material substrate. The liquid crystal display of the present invention and the laminated glass of the present invention each comprises the laminate of the present invention. According to the present invention, there can be provided a pressure-sensitive adhesive film, a laminate comprising the pressure-sensitive adhesive film, and a liquid crystal display and a laminated glass each comprising the laminate, in which a transparency in low-temperature sticking is favorable, foaming in an end portion in low-temperature sticking is small, and adhesiveness to a resin material such as a polarization film is favorable.

公开(公告)号：US20230399475A1

公开(公告)日：2023-12-14

申请号：US18034947

申请日：2021-11-09

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yumiko TERAGUCHI ,  Yuji OOHIGASHI ,  Yuuki OKADA ,  Kanako URADOKORO ,  Naoki KAMOSHIDA ,  Yuki ISHIKAWA

IPC: C08J5/18 ,  C08K5/103 ,  B32B17/10 ,  G02F1/137

CPC classification number: C08J5/18 ,  C08K5/103 ,  B32B17/10036 ,  B32B17/10761 ,  B32B17/10605 ,  B32B17/10504 ,  G02F1/137 ,  C08J2351/08 ,  C08J2329/14 ,  C08J2467/00 ,  C08J2471/02 ,  C08J2463/00 ,  B32B2457/202 ,  G02F2202/08 ,  G02F2202/025

Abstract: The present invention provides a film for a liquid crystal device that is a film (15 or 16) used for a liquid crystal device (10) and contains a thermoplastic resin, in which the NI point change of liquid crystal upon contacting the film with the liquid crystal is −2° C. to +2° C.

公开(公告)号：US20240294807A1

公开(公告)日：2024-09-05

申请号：US18570825

申请日：2022-06-16

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuji OOHIGASHI ,  Yuki ISHIKAWA ,  Naoki KAMOSHIDA

IPC: C09J7/38 ,  C09J129/10

CPC classification number: C09J7/38 ,  C09J129/10 ,  C09J2203/318 ,  C09J2301/302 ,  C09J2301/312 ,  C09J2400/226

Abstract: The pressure-sensitive adhesive film of the present invention comprises a thermoplastic resin, wherein a shear storage elastic modulus at 85° C. is 0.06×106 Pa or more and 1.00×106 Pa or less, the pressure-sensitive adhesive film comprises no plasticizer or comprises less than 20 parts by mass of a plasticizer based on 100 parts by mass of the thermoplastic resin, and a gel fraction is 15% or less. The laminate of the present invention comprises the pressure-sensitive adhesive film of the present invention, a first organic material substrate, and at least one base material of a second organic material substrate and an inorganic material substrate. The liquid crystal display of the present invention and the laminated glass of the present invention each comprise the laminate of the present invention. The present invention can provide a pressure-sensitive adhesive film excellent in level-difference conformability, bleed performance and recyclability, a laminate comprising the pressure-sensitive adhesive film, and a liquid crystal display and a laminated glass each comprising the laminate.