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.

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

IPC: B32B17/10 ,  B32B27/22 ,  B32B27/08 ,  B32B7/022 ,  B32B27/16 ,  B32B7/027 ,  B32B27/20

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.