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公开(公告)号：US20160311200A1
公开(公告)日：2016-10-27
申请号：US15104321
申请日：2015-03-31
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Shougo YOSHIDA , Kazuhiko NAKAYAMA , Tatsuya IWAMOTO
CPC classification number: B32B17/10 , B32B3/30 , B32B17/10587 , B32B17/10596 , B32B17/10761 , B32B27/08 , B32B27/22 , B32B2250/03 , B32B2307/412
Abstract: The present invention aims to provide an interlayer film for laminated glass having small optical distortion while having a multilayer structure of two or more layers, and a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass including at least two resin layers laminated together, the interlayer film having a large number of minute recesses and a large number of minute projections on at least one surface, the at least two resin layers including a first surface layer and a second surface layer and each containing a thermoplastic resin and a plasticizer, wherein, provided that the interlayer film is allowed to stand at 23° C. and a humidity of 30% RH for three hours, and cut with a microtome at 23° C. and a humidity of 30% RH in the horizontal direction of the interlayer film at a portion of 80 to 90 μm distant on the first surface layer side from the interface between the first surface layer and a resin layer contacting the interior side of the first surface layer and then at a portion of 50 μm distant from the cut face on the second surface layer side to prepare a resin film 1 having a thickness of 50 μm, the resin film 1 after standing at a temperature of 23° C. and a humidity of 30% RH for three hours has a surface roughness (Rz) measured by a method in conformity with JIS B-0601 (1994) of less than 2.5 μm.
Abstract translation: 本发明的目的在于提供一种具有小的光学变形的夹层玻璃用中间膜，同时具有两层或更多层的多层结构，以及夹层玻璃，其包括夹层玻璃用中间膜。 本发明涉及一种层压玻璃用中间膜，其包括层叠在一起的至少两层树脂层，所述中间膜具有大量微小凹陷和至少一个表面上的大量微小突起，所述至少两层树脂层包括 第一表面层和第二表面层，并且各自含有热塑性树脂和增塑剂，其中，只要将中间膜在23℃和30％RH的湿度下放置3小时，并用 切片机在层间膜的水平方向上在23℃和湿度30％RH的范围内，在第一表面层和与第一表面层和与第一表面层接触的树脂层之间的界面处的第一表面层侧的80至90μm的部分 在第一表面层的内侧，然后在距离第二表面层侧的切割面50μm的部分，以制备厚度为50μm的树脂膜1，sta后的树脂膜1 在23℃的温度和30％RH的湿度下三小时，通过JIS B-0601（1994）的方法测定的表面粗糙度（Rz）小于2.5μm。
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公开(公告)号：US20220250357A1
公开(公告)日：2022-08-11
申请号：US17623731
申请日：2020-07-14
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Shougo YOSHIDA , Tatsuya IWAMOTO , Yuuma TAKEDA , Shingo OKAZAWA , Kinryou CHOU
IPC: B32B17/10
Abstract: Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property of laminated glass in a relatively low temperature region. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer structure or a two or more-layer structure, and when the interlayer film is sandwiched between two sheets of green glass having a thickness of 2 mm to obtain a laminated glass X with a size of 25 mm long×300 mm wide, an absolute value of difference between a secondary resonance frequency of the laminated glass X before irradiation with xenon light and a secondary resonance frequency of the laminated glass X after irradiation with xenon light determined by a specific xenon light irradiation test is 60 Hz or more, a loss factor at 20° C. of the laminated glass X is 0.25 or more, and a solar transmittance of the laminated glass X is 50% or less.
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公开(公告)号：US20230182450A1
公开(公告)日：2023-06-15
申请号：US17924006
申请日：2021-07-26
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Jun ISHIDA , Hiromitsu NISHINO , Tatsuya IWAMOTO
CPC classification number: B32B17/10761 , B32B17/10036 , B32B3/263 , B32B7/02 , B32B27/08 , B32B27/22 , B32B27/30 , B32B17/10605 , B32B2307/538 , B32B2307/732 , B32B2307/102 , B32B2605/006 , B32B2605/08 , B32B2605/10 , B32B2605/18 , B32B2605/12 , B32B2419/00
Abstract: Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property in a low-frequency region while keeping the sound insulating property in a high-frequency region high. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a two or more-layer structure, the interlayer film has one end, and the other end being at an opposite side of the one end, each layer contained in the interlayer film has one end, and the other end being at an opposite side of the one end, the one end of the each layer is located at the one end side of the interlayer film in a direction connecting the one end and the other end of the interlayer film, the other end of the each layer is located at the other end side of the interlayer film in the direction connecting the one end and the other end of the interlayer film, in the interlayer film, a thickness of the other end is larger than a thickness of the one end, and in at least one layer contained in the interlayer film, a thickness at the other end is smaller than a thickness at the one end.
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公开(公告)号：US20220339910A1
公开(公告)日：2022-10-27
申请号：US17623371
申请日：2020-07-14
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Kinryou CHOU , Yuuma TAKEDA , Tatsuya IWAMOTO , Shougo YOSHIDA , Shingo OKAZAWA
Abstract: Provided is an interlayer film for laminated glass capable of suppressing the change in sound insulating property of laminated glass in a relatively high temperature region. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer structure or a two or more-layer structure, and when the interlayer film is sandwiched between two sheets of green glass having a thickness of 2 mm to obtain a laminated glass X with a size of 25 mm long x 300 mm wide, an absolute value of difference between a secondary resonance frequency of the laminated glass X before irradiation with xenon light and a secondary resonance frequency of the laminated glass X after irradiation with xenon light determined by a specific xenon light irradiation test is 70 Hz or less, a loss factor at 20° C. of the laminated glass X is 0.24 or more, and a solar transmittance of the laminated glass X is 50 or less.
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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
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.
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Patent Agency Ranking
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.
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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
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.
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公开(公告)号：US20190047262A1
公开(公告)日：2019-02-14
申请号：US16075618
申请日：2017-02-03
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Nami MINAKUCHI , Tatsuya IWAMOTO , Kohei KANI , Jun SASAKI , Yuuma TAKEDA
IPC: B32B17/10
Abstract: Provided is an interlayer film for laminated glass capable of being enhanced in sound insulating properties of laminated glass at 30° C. The interlayer film for laminated glass according to the present invention includes first and second layers each containing a thermoplastic resin and a plasticizer, and when an absolute value of a difference in cloud point using the thermoplastic resin and the plasticizer in each of the first and second layers is represented by Xa, and a content based on parts by weight of the entire plasticizer in the interlayer film for laminated glass relative to 100 parts by weight of the entire thermoplastic resin in the interlayer film for laminated glass is represented by Z, the interlayer film satisfies at least one of the first constitution: “Xa≤115 and Z≤−0.16Xa+59” and the second constitution: “the thermoplastic resin in the first layer is a polyvinyl acetal resin, and when the acetylation degree on a mole percent basis of the polyvinyl acetal resin in the first layer is represented by Y, Y≥2 and Z≤−0.16Xa−0.2Y+59”.
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公开(公告)号：US20230011574A1
公开(公告)日：2023-01-12
申请号：US17778954
申请日：2020-12-03
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Tatsuya IWAMOTO , Koushi YAMAZAKI , Toshiki KANEKO
Abstract: Provided is an interlayer film for laminated glass capable of suppressing occurrence of foaming in an end part of the laminated glass, and increasing the transparency of the laminated glass without conducting a high-temperature and high-pressure process by an autoclave. The interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass, having a one-layer structure or a two or more-layer structure, and includes a first layer, and when a specific compression creep test is conducted for a test sample A having a diameter of 8 mm and a thickness of 0.8 mm obtained by cutting out the first layer, a variation in thickness of the test sample A before and after the compression creep test is 50 µm or more and 325 µm or less.
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公开(公告)号：US20210316536A1
公开(公告)日：2021-10-14
申请号：US17265331
申请日：2019-07-02
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Tatsuya IWAMOTO , Yuu SAKAMOTO
Abstract: Provided is an interlayer film for laminated glass having increased tan δ and excellent sound insulating property in an interlayer film having a low glass transition temperature. An interlayer film for laminated glass according to the present invention includes a resin layer containing a resin component and a plasticizer, and combination of the resin component and the plasticizer in the resin layer is such that when a composition having a glass transition temperature of −10° C. is obtained by blending only the plasticizer in 100 parts by weight of the resin component, a blending amount of the plasticizer per 100 parts by weight of the resin component in the composition is 60 parts by weight or less, and the interlayer film satisfies the formula tan δ1≥1.3, or satisfies the formula: (tan δ0−tan δ1)/(Tg0+10)≤0.01.
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