公开(公告)号：US20220009205A1

公开(公告)日：2022-01-13

申请号：US17414554

申请日：2019-12-20

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yui HIGASHIONNA ,  Nobuo MATSUKI ,  Shinji KAWADA

IPC: B32B17/10

Abstract: The interlayer film for laminated glass of the present invention is an interlayer film for laminated glass that is disposed between an inorganic glass and an organic glass to bond the inorganic glass and the organic glass together, wherein the interlayer film for laminated glass comprises at least a first resin portion and a second resin portion, the interlayer film for laminated glass has a total thickness of 50 μm or more and 2.0 mm or less, a product (kG1′) of a storage modulus (G1′) of the first resin portion measured at 80° C. at a frequency of 1 Hz in a shear mode and a coefficient (k) calculated by the following formula is less than 1.1×107 Pa, and a storage modulus (G2′) of the second resin portion measured at 80° C. at a frequency of 1 Hz in a shear mode is larger than 2.5×104 Pa, k=(Cb×Tb)/(Ca×Ta) wherein Ca is a linear expansion coefficient of the inorganic glass, Cb is a linear expansion coefficient of the organic glass, Ta is a thickness of the inorganic glass, and Tb is a thickness of the organic glass.

公开(公告)号：US20240271019A1

公开(公告)日：2024-08-15

申请号：US18565754

申请日：2022-05-30

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shinji KAWADA ,  Tomoki TODA ,  Shuuji KAGE ,  Chiharu OKUHARA ,  Kaito NEMOTO

IPC: C09J133/10 ,  C08F2/44 ,  C08F2/50 ,  C08F220/18 ,  C09J4/00 ,  C09J11/06 ,  C09J11/08

CPC classification number: C09J133/10 ,  C08F2/44 ,  C08F2/50 ,  C08F220/1811 ,  C09J4/00 ,  C09J11/06 ,  C09J11/08

Abstract: The present invention aims to provide a UV-curable adhesive composition having excellent printability, excellent UV reactivity in the presence of oxygen, and excellent adhesion to various substrates. The present invention also aims to provide an adhesive containing the UV-curable adhesive composition. Provided is a UV-curable adhesive composition containing: (A) a nitrogen-containing monomer; (B) a monofunctional (meth)acrylate monomer; (C) a crosslinking component; (D) a photopolymerization initiator; and (E) a thermoplastic resin having no reactivity with the nitrogen-containing monomer (A) nor with the monofunctional (meth)acrylate monomer (B), a cured product being obtained by applying the composition to a substrate at a thickness of 150 μm and irradiating the composition with UV light having a wavelength of 315 nm to 480 nm at an irradiance of 90 mW/cm2 and a dose of 1,350 mJ/cm2 in an atmospheric environment, the cured product having a reaction percentage of 80% or higher on both a surface facing the atmosphere and a surface facing the substrate.

公开(公告)号：US20180141315A1

公开(公告)日：2018-05-24

申请号：US15570844

申请日：2016-05-13

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shinji KAWADA ,  Juichi FUKATANI ,  Tomoki TODA ,  Yasuharu NAGAI

IPC: B32B17/10

CPC classification number: B32B17/10761 ,  B32B27/30 ,  B32B2457/208 ,  C09J11/06 ,  C09J129/14 ,  G02F1/13338 ,  G02F1/133528 ,  G06F3/041

Abstract: The present invention aims to provide an interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant, which is excellent in followability to steps, which can provide a touch panel laminate that is less likely to suffer cracks or breakage. The present invention also aims to provide a touch panel laminate produced using the interlayer filling material for a touch panel. The present invention relates to an interlayer filling material for a touch panel used for filling an interlayer space between a touch panel and another component, or at least one of interlayer spaces included in the touch panel between transparent conductive films, between a glass sheet and one of the transparent conductive films, between a glass sheet and another glass sheet, between a glass sheet and a polarizing film, between a substrate and a glass sheet, between a substrate and one of the transparent conductive films, and between a substrate and a polarizing film, the interlayer filling material including: a polyvinyl acetal; a reactive diluent; and a photopolymerization initiator.

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：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：US20220063248A1

公开(公告)日：2022-03-03

申请号：US17414163

申请日：2019-12-20

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Nobuo MATSUKI ,  Shinji KAWADA

IPC: B32B17/10

Abstract: An interlayer film for laminated glass of the present invention has an average storage modulus (G′) at 110 to 150° C. measured at a frequency of 1 Hz in a shear mode of 15000 Pa or less, and has an adhesive strength of 0.3 N/mm2 or more as measured in a cross peeling test performed under the following conditions on a cross peeling test sample produced by a predetermined method. Cross peeling test: A maximum load (N) when the polycarbonate plate glass is peeled from the clear float plate glass in a direction perpendicular to an adhesive surface at a rate of 10 mm/min at 23° C. is measured, and that measured maximum load (N) is taken as the adhesive strength.

公开(公告)号：US20240368328A1

公开(公告)日：2024-11-07

申请号：US18565758

申请日：2022-05-30

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Chiharu OKUHARA ,  Kaito NEMOTO ,  Shinji KAWADA ,  Shuuyji KAGE ,  Tomoki TODA

IPC: C08F283/00 ,  C08F2/50 ,  C08K3/22 ,  C08K3/28 ,  C09J4/06

Abstract: The present invention aims to provide a UV-curable heat-dissipating resin composition having excellent printability, excellent heat dissipation properties, and excellent adhesion to various substrates. The present invention also aims to provide a heat-dissipating adhesive sheet containing the UV-curable heat-dissipating resin composition, a laminate, and a method for producing a laminate. Provided is a UV-curable heat-dissipating resin composition containing: (A) a nitrogen-containing monomer; (B) a monofunctional (meth) acrylate monomer; (C) a crosslinking component; (D) a photopolymerization initiator; and (E) a thermally conductive filler having a thermal conductivity of 3 W/m·K or higher, the thermally conductive filler (E) being contained in an amount of 20 to 70% by volume, the nitrogen-containing monomer (A) being contained in an amount of 10 to 35% by weight relative to a whole amount of the composition excluding the thermally conductive filler (E).

公开(公告)号：US20240301243A1

公开(公告)日：2024-09-12

申请号：US18564846

申请日：2022-05-30

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shinji KAWADA ,  Tomoki TODA ,  Shuuji KAGE ,  Chiharu OKUHARA ,  Kaito NEMOTO

IPC: C09J4/00 ,  B32B7/12 ,  B32B37/12 ,  C08F220/18 ,  C08F220/28 ,  C09J5/00 ,  C09J133/06 ,  C09J133/14

CPC classification number: C09J4/00 ,  B32B7/12 ,  B32B37/1284 ,  C08F220/1809 ,  C08F220/1811 ,  C08F220/282 ,  C09J5/00 ,  C09J133/062 ,  C09J133/14 ,  B32B2037/1253 ,  B32B2255/26 ,  B32B2307/558 ,  B32B2307/748 ,  C08F2810/20 ,  C09J2433/00

Abstract: The present invention aims to provide a UV-curable composition having excellent printability, excellent UV reactivity in the presence of oxygen, and excellent adhesiveness at room temperature and high temperature. Provided is a UV-curable composition containing: a curing component containing a (meth)acrylate monomer and a crosslinking component; and a UV curing agent, the (meth)acrylate monomer including, in 100% by weight of the curing component, 50 to 85% by weight of a monomer that, in a form of a homopolymer, has a glass transition temperature of −70° C. to −30° C., a cured product being obtained by applying the composition to a substrate at a thickness of 150 μm and irradiating the composition, without sealing an upper surface of the applied composition, with UV light having a wavelength of 315 nm to 480 nm at an irradiance of 90 mW/cm2 and a dose of 1,350 mJ/cm2 in an atmospheric environment, the cured product having a gel fraction of 0.4 to 78%, a glass transition temperature of −35° C. to 10° C., a reaction percentage of 83% or higher, and a reaction progress percentage on a surface facing the atmosphere of 93% or higher relative to a surface facing the substrate.