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公开(公告)号：WO2022075988A1
公开(公告)日：2022-04-14
申请号：PCT/US2020/054694
申请日：2020-10-08
申请人： BEMIS COMPANY, INC.
摘要： A laminated polypropylene-based film suitable for use as a lidding film having an exterior film, a barrier layer, and a sealing layer. The lidding film has a total composition including high levels of polyolefin-based polymers and polypropylene- based polymers such that the material can be processed efficiently in a polypropylene recycling process. Advantageously, the film retains the properties required to suitably withstand sterilization and pasteurization processes and produce a high-quality packaged product.
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公开(公告)号：WO2021251945A1
公开(公告)日：2021-12-16
申请号：PCT/US2020/036639
申请日：2020-06-08
申请人： BEMIS COMPANY, INC.
摘要： A laminated polypropylene-based film suitable for retort packaging having an exterior film, a barrier layer, and a sealing layer. The retort packaging film has a total composition including high levels of polyolefin-based polymers and polypropylene- based polymers such that the material can be processed efficiently in a polypropylene recycling process. Advantageously, the film retains the properties required to suitably withstand the retort process and produce a high-quality shelf-stable packaged product.
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公开(公告)号：WO2021221613A1
公开(公告)日：2021-11-04
申请号：PCT/US2020/030255
申请日：2020-04-28
申请人： BEMIS COMPANY, INC.
IPC分类号： B32B3/00
摘要： A multilayer barrier film for food packaging comprises an outer layer comprising a first polymeric material having a moisture vapor transmission rate (MVTR) of greater than or equal to 10 gram.mil/100in2/day; a first inner layer adjacent to the outer layer, the first inner layer comprising a first retortable grade ethylene vinyl alcohol (EVOH) copolymer; a second inner layer adjacent to the first inner layer, the second inner layer comprising a second polymeric material having a moisture vapor transmission rate (MVTR) of greater than or equal to 10 gram.mil/100in2/day; a third inner layer adjacent to the second inner layer, the third inner layer comprising a second retortable grade EVOH copolymer; and a sealing layer adjacent to the third inner layer; wherein the first polymeric material is not a retortable grade EVOH copolymer. Excellent recovery of oxygen barrier over time is achieved by these films and retortable containers made therefrom.
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公开(公告)号：WO2020204984A1
公开(公告)日：2020-10-08
申请号：PCT/US2019/047523
申请日：2019-08-21
申请人： BEMIS COMPANY, INC.
摘要： Recyclable films having at least a first layer containing a high-density polyethylene and a nucleating agent, a second layer containing a high-density polyethylene and a third layer containing a high-density polyethylene and a nucleating agent may be used for thermoforming packaging components. The film structure is advantageous as it can be more easily thermoformed that traditional high-density polyethylene films and can maintain the shape taken during thermoforming, exhibiting minimal warping or shrinking.
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公开(公告)号：WO2020190308A1
公开(公告)日：2020-09-24
申请号：PCT/US2019/023476
申请日：2019-03-21
申请人： BEMIS COMPANY, INC.
IPC分类号： B32B7/04 , B41M7/00 , C09D11/101 , G09F3/00
摘要： An adhesive-free laminate and a process for producing such a laminate are described herein. The process includes printing an ink on the surface of a first film, exposure of the printed film to UV radiation such that the ink is at least partially cured, attaching the first film to a second film such that the ink is between the first and second film, and exposing the combination of the first film, the ink and the second film to a second UV radiation. It has been found that this process can produce a unique laminate, without the presence of an adhesive.
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公开(公告)号：WO2020162963A1
公开(公告)日：2020-08-13
申请号：PCT/US2019/039810
申请日：2019-06-28
申请人： BEMIS COMPANY, INC.
摘要： The present disclosure relates to flexible, multilayered packaging films and packages produced from the films. In particular, the films include a machine direction linear tear layer that comprises from 60 percent to 95 percent ethylene vinyl alcohol copolymer (EVOH) and from 5 percent to 40 percent polyethylene. The films and packages demonstrate improved machine directional linear tear.
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公开(公告)号：WO2020131105A1
公开(公告)日：2020-06-25
申请号：PCT/US2018/067167
申请日：2018-12-21
申请人： BEMIS COMPANY, INC.
摘要： Described herein are recyclable films with an outer surface comprising a polar polymer, such as polyamide, an inner surface comprising a sealant, and a polar polymer compatibilizer located between the polar polymer and the sealant. Preferably the outer surface is an outer layer of biaxially oriented polyamide and the inner surface is a multilayer inner film comprising the sealant and the compatibilizer.
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公开(公告)号：WO2020068053A1
公开(公告)日：2020-04-02
申请号：PCT/US2018/052666
申请日：2018-09-25
申请人： BEMIS COMPANY, INC.
摘要： Described are liners for bulk containers that are abuse resistant. The liners include at least one sidewall. The sidewall includes at least an exterior ply and an interior ply. Optionally, the sidewall may include at least one intermediate ply. One of the plies includes a first polyolefin-silicone copolymer. The adhesion between the plies is from 0 g/25.4 cm to 50 g/25.4 cm (0 g/in to 50 g/in).
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公开(公告)号：WO2020046360A1
公开(公告)日：2020-03-05
申请号：PCT/US2018/049019
申请日：2018-08-31
申请人： BEMIS COMPANY, INC.
摘要： A first layer that is a peelable film includes a bonding sublayer and a sealing sublayer. The bonding sublayer includes a non-neutralized ethylene acid copolymer, The sealing sublayer includes a first polyethylene and an ethylene acid copolymer or blends thereof. The first layer is adapted to withstand exposure to sterilization processes and the first layer can be essentially free of blistering.
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公开(公告)号：WO2020027799A2
公开(公告)日：2020-02-06
申请号：PCT/US2018/044569
申请日：2018-07-31
申请人： BEMIS COMPANY, INC.
IPC分类号： B32B27/30
摘要： A multilayer film that has improved ultrasonic sealing properties is disclosed. The multilayer film includes a first layer and a second layer. The second Iayer includes a first sublayer composed of a polypropylene copolymer, a thermoplastic polyolefin having a modulus of 1,700 MPa or less, and olefin block copolymer. The second layer further includes a second sublayer composed of a polypropylene homopolymer or polypropylene copolymer. A laminating agent may be positioned between the first layer and the second Iayer. The multilayer film has a seal initiation temperature of greater than 105 degrees Celsius, in some embodiments, packages made from the multilayer film are adapted to withstand exposure to high heat pasteurization of greater than 70 degrees Celsius.
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