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：US20210221102A1

公开(公告)日：2021-07-22

申请号：US15734368

申请日：2019-07-02

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuki ISHIKAWA ,  Tatsuya IWAMOTO ,  Shinji KAWADA

IPC: B32B17/10 ,  B32B27/30 ,  B32B27/22 ,  B32B27/08 ,  C08F220/18

Abstract: Provided is an interlayer film for laminated glass capable of enhancing the adhesive force between a layer containing a (meth)acryloyl polymer, and an adherend arranged on the layer, and enhancing the sound insulating property of the laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer or two or more-layer structure, the interlayer film includes a first layer containing a (meth)acryloyl polymer prepared by polymerizing polymerization components including at least one kind of cyclic skeleton-containing (meth)acryloyl monomer selected from the group consisting of a (meth)acryloyl monomer having an aromatic skeleton, a (meth)acryloyl monomer having an alicyclic skeleton and a (meth)acryloyl monomer having a cyclic ether skeleton, and a content of the cyclic skeleton-containing (meth)acryloyl monomer is 50% by weight or more in 100% by weight of the polymerization components.

公开(公告)号：US20240141082A1

公开(公告)日：2024-05-02

申请号：US18280026

申请日：2022-03-07

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuki ISHIKAWA ,  Masumi FUJITA ,  Shizuka SUGIHARA

IPC: C08F216/06

CPC classification number: C08F216/06

Abstract: The present invention provides a polyvinyl alcohol resin with which a polyvinyl acetal resin having a controlled particle size and forming less lumps during dissolution to exhibit excellent solubility can be produced. Provided is a polyvinyl alcohol resin containing: methyl acetate; a vinyl alcohol unit; and a vinyl acetate unit, the methyl acetate being contained in an amount of 0.05 to 3% by weight, the vinyl alcohol unit being contained in an amount of 80 to 99.5 mol %, the vinyl acetate unit having a mean chain length LA of 1 to 4.5, the vinyl alcohol unit having a mean chain length LO of 1 to 30.

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：US20230357476A1

公开(公告)日：2023-11-09

申请号：US18025941

申请日：2021-09-13

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shinji KAWADA ,  Yuki ISHIKAWA ,  Tatsuya IWAMOTO ,  Yuuki OKADA

IPC: C08F265/06 ,  C08F2/50

CPC classification number: C08F265/06 ,  C08F2/50

Abstract: Provided is a resin composition capable of enhancing the application property, and enhancing the grindability and the oil resistance of a cured body. A resin composition according to the present invention comprises a (meth)acrylic monomer, and a (meth)acrylic polymer, the (meth)acrylic monomer includes a first (meth)acrylic monomer, the first (meth)acrylic monomer has a glass transition temperature of homopolymer thereof of 65° C. or more and 110° C. or less, a content of the first (meth)acrylic monomer in 100% by weight of the (meth)acrylic monomer is 50% by weight or more and 85% by weight or less, the (meth)acrylic polymer has a weight average molecular weight of 400000 or more and 1900000 or less, and a content of the (meth)acrylic polymer, relative to 100 parts by weight of the (meth)acrylic monomer is 5 parts by weight or more and 30 parts by weight or less.

公开(公告)号：US20220332095A1

公开(公告)日：2022-10-20

申请号：US17622416

申请日：2019-11-20

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuki ISHIKAWA ,  Tatsuya IWAMOTO ,  Shinji KAWADA ,  Yuuki OKADA

IPC: B32B17/10 ,  B32B27/08 ,  B32B27/30 ,  B32B27/22

Abstract: Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property of laminated glass over a wide resonance frequency region. An interlayer film for laminated glass according to the present invention has a one-layer or two or more-layer structure, and when the interlayer film is arranged between two sheets of clear float glass having a width of 25 mm, a length of 300 mm and a thickness of 2 mm to obtain a laminated glass X, a loss factor at a second resonance frequency, a loss factor at a third resonance frequency, and a loss factor at a fourth resonance frequency measured by a central exciting method at 20° C. in mechanical impedance measurement in accordance with ISO16940 of the laminated glass X are respectively 0.4 or more.

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.

公开(公告)号：US20220363039A1

公开(公告)日：2022-11-17

申请号：US17620888

申请日：2019-11-20

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shinji KAWADA ,  Yuki ISHIKAWA

IPC: B32B17/10 ,  B32B27/08 ,  B32B27/30 ,  B32B27/22

Abstract: Provided is an interlayer film for laminated glass capable of enhancing the pour stability at the time of extrusion during production of the interlayer film for laminated glass, and having excellent shape stability. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or two or more-layer structure, and includes a first layer containing a thermoplastic (meth)acrylic polymer and satisfies at least one of a first configuration that the thermoplastic (meth)acrylic polymer contained in the first layer is a thermoplastic (meth)acrylic polymer having a molecular weight distribution ratio of weight average molecular weight to number average molecular weight of 1 or more and 6 or less, and a second configuration that the thermoplastic (meth)acrylic polymer contained in the first layer is a thermoplastic (meth)acrylic polymer having a gel fraction of 5% by weight or less.

公开(公告)号：US20220288896A1

公开(公告)日：2022-09-15

申请号：US17623011

申请日：2019-11-20

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuuma TAKEDA ,  Tatsuya IWAMOTO ,  Yuki ISHIKAWA ,  Shinji KAWADA

IPC: B32B17/10 ,  B32B7/12

Abstract: Provided is an interlayer film for laminated glass capable of suppressing the generation of an optical strain in laminated glass, and enhancing the damping performance of laminated glass. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or two or more-layer structure, and includes a first layer containing a resin, and when the interlayer film is arranged between two sheets of clear float glass having a thickness of 2.5 mm to obtain a laminated glass X with a size of 150 mm in length and 300 mm in width, and the obtained laminated glass X is subjected to a specific measurement of optical strain, an optical strain value is 3.00 or less, whereas when the interlayer film is arranged between two sheets of clear float glass having a thickness of 2.1 mm to obtain a laminated glass Y having a size of 950 mm in length and 1500 mm in width, and the obtained laminated glass Y is subjected to a specific measurement of damping ratio, a damping ratio at a resonance frequency of 50 Hz or more and 80 Hz or less is 5.0% or more.

公开(公告)号：US20160053039A1

公开(公告)日：2016-02-25

申请号：US14781061

申请日：2014-01-09

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kaoru MIKAYAMA ,  Yasuharu NAGAI ,  Yuki ISHIKAWA

IPC: C08F261/08 ,  C04B35/468

CPC classification number: C08F261/08 ,  B32B18/00 ,  C04B35/4682 ,  C04B35/634 ,  C04B35/645 ,  C04B2235/5445 ,  C04B2237/346 ,  C08F261/12 ,  H01G4/12 ,  C08F220/06

Abstract: The present invention provides a binder for manufacturing an inorganic sintered body that has excellent adhesiveness upon heat pressing and thermal decomposability and, especially when used as a binder for a ceramic green sheet, provides a ceramic green sheet having sufficient mechanical strength and flexibility. The present invention also provides a paste for manufacturing an inorganic sintered body, a ceramic green sheet, and a ceramic laminate individually manufactured using the binder for manufacturing an inorganic sintered body. The present invention provides a binder for manufacturing an inorganic sintered body containing a graft copolymer having a unit including polyvinyl butyral and a unit including a poly(meth)acrylic compound, the polyvinyl butyral having a polymerization degree of 800 to 5000, a hydroxy group content of 20 to 40 mol %, and a butyralization degree of 60 to 80 mol %, the unit including a poly(meth)acrylic compound having a glass transition temperature of 0 to 110° C.

Abstract translation: 本发明提供了一种用于制造具有优异的热压粘合性和热分解性的无机烧结体的粘合剂，特别是当用作陶瓷生片的粘合剂时，提供了具有足够机械强度和柔性的陶瓷生坯片。 本发明还提供了一种用于制造无机烧结体，陶瓷生片和陶瓷层压体的浆料，该粘合剂使用用于制造无机烧结体的粘结剂单独制造。 本发明提供一种用于制造无机烧结体的粘结剂，其包含具有包含聚乙烯醇缩丁醛的单元的接枝共聚物和包含聚（甲基）丙烯酸化合物的单元，聚合度为800至5000的聚乙烯醇缩丁醛，羟基含量 为20〜40摩尔％，丁缩醛化度为60〜80摩尔％，该单元包含玻璃化转变温度为0〜110℃的聚（甲基）丙烯酸类化合物。