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1. 发明公开

EP4316827A1 RADIATIVE COOLING DEVICE 审中-实审
公开(公告)号：EP4316827A1
公开(公告)日：2024-02-07
申请号：EP22775771.3
申请日：2022-03-24
申请人： Osaka Gas Co., Ltd.
发明人： SUEMITSU Masahiro , SUGIMOTO Masayuki
IPC分类号： B32B27/30 , F24S70/60 , B32B7/023 , G02B5/26
摘要： Provided is a radiative cooling device that is flexible, has increased weather resistance, and can be produced at a low cost. The radiative cooling device includes: an infrared radiative layer A having a radiative surface H for radiating infrared light IR; and a light reflective layer B on a side of the infrared radiative layer A, which is opposite to the radiative surface H. The infrared radiative layer A is a resin material layer J having a thickness adjusted so that the resin material layer emits heat radiation energy greater than absorbed solar energy in a wavelength range from 8 µm to 14 µm. The resin material layer J includes a vinyl chloride-based resin as a resin material in which a plasticizer is mixed. The plasticizer is any of phthalic acid esters, aliphatic dibasic acid esters, and phosphoric acid esters.

2. 发明公开

EP4316807A1 RADIATION COOLING FILM MATERIAL 审中-实审
公开(公告)号：EP4316807A1
公开(公告)日：2024-02-07
申请号：EP22775773.9
申请日：2022-03-24
申请人： Osaka Gas Co., Ltd.
发明人： SUEMITSU Masahiro , SUGIMOTO Masayuki
IPC分类号： B32B15/082 , F24S70/225 , F24S70/60
摘要： Provided is a radiative cooling film material that can cool a film material under solar radiation during the day due to a radiative cooling effect and increase the productivity of canvas. The radiative cooling film material includes: a film material E; and a radiative cooling layer CP on an outer surface of the film material E, wherein the radiative cooling layer CP includes: an infrared radiative layer A having a radiative surface H for radiating infrared light; and a light reflective layer B on a side of the infrared radiative layer A, which is opposite to the radiative surface H, wherein the infrared radiative layer A is a resin material layer J including a vinyl chloride resin or a vinylidene chloride resin and having a thickness adjusted so that the resin material layer J emits heat radiation energy greater than absorbed solar energy in a wavelength range from 8 µm to 14 µm, the light reflective layer B includes silver or a silver alloy, and the radiative cooling film material further includes a film material-side resin layer Ej including a vinyl chloride resin or a vinylidene chloride resin as a rear surface portion of the film material E, which is apart from the radiative cooling layer CP.

3. 发明公开

EP4317832A1 RADIATIVE COOLING DEVICE 审中-实审
公开(公告)号：EP4317832A1
公开(公告)日：2024-02-07
申请号：EP22775772.1
申请日：2022-03-24
申请人： Osaka Gas Co., Ltd.
发明人： SUEMITSU Masahiro , SUGIMOTO Masayuki
IPC分类号： F24S70/60 , G02B5/08 , G02B5/26
摘要： Provided is a radiative cooling device that appears white as viewed from a radiative surface side and has increased durability. The radiative cooling device includes an infrared radiative layer A having a radiative surface H for radiating infrared light, a light reflective layer B on a side of the infrared radiative layer A, which is opposite to the radiative surface H, and a protective layer D between the infrared radiative layer A and the light reflective layer B. The infrared radiative layer A is a resin material layer J having a thickness adjusted so that the resin material layer J emits heat radiation energy greater than absorbed solar energy in a wavelength range from 8 µm to 14 µm. The light reflective layer B includes silver or a silver alloy. The radiative cooling device further includes an adhesive layer N between the resin material layer J and the protective layer D, the adhesive layer N joining the resin material layer J to the protective layer D. The adhesive layer N includes a filler Q made of an inorganic material.

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