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公开(公告)号：EP4036160A2
公开(公告)日：2022-08-03
申请号：EP21193708.1
申请日：2021-08-30
IPC分类号： C08J5/18
摘要： A matte polyester film and a method for manufacturing the same are provided. The method for manufacturing the matte polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity less than the first intrinsic viscosity; mixing matte regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester masterbatch material; melting and then extruding the polyester masterbatch material to obtain the matte polyester film having the predetermined intrinsic viscosity.
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公开(公告)号：EP4036160A3
公开(公告)日：2022-08-10
申请号：EP21193708.1
申请日：2021-08-30
IPC分类号： C08J5/18
摘要： A matte polyester film and a method for manufacturing the same are provided. The method for manufacturing the matte polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity less than the first intrinsic viscosity; mixing matte regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester masterbatch material; melting and then extruding the polyester masterbatch material to obtain the matte polyester film having the predetermined intrinsic viscosity.
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公开(公告)号：EP3940023A1
公开(公告)日：2022-01-19
申请号：EP21165540.2
申请日：2021-03-29
摘要： A flame-retardant polyester film and a method for manufacturing the same are provided. The flame-retardant polyester film includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed by a plurality of physically recycled polyester chips. The chemically recycled polyester resin is formed by a plurality of chemically recycled polyester chips and mixed with the physically recycled polyester resin. The plurality of chemically recycled polyester chips further include chemically recycled electrostatic pinning polyester chips. The chemically recycled electrostatic pinning polyester chips contain electrostatic pinning additives, and the electrostatic pinning additives are metal salts. Expressed in percent by weight based on a total weight of the polyester film, a content of the electrostatic pinning additives in the polyester film is between 0.005% and 0.1% by weight. The flame-retardant polyester film further includes a flame-retardant additive.
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