Patents Assigned to WINPAK LTD.
  • Patent number: 12649849
    Abstract: Described herein are high stiffness, high impact strength and clarified polypropylene-containing compositions. The disclosed compositions comprise a polypropylene, a nucleating agent, and optionally one or more additives. In certain aspects, the polypropylene includes a first polypropylene and a second polypropylene that is different from the first. The disclosed compositions exhibit high stiffness, high impact strength, improved clarity, and improved thermoformability. Also described herein are articles comprising the disclosed compositions and methods of manufacturing such articles.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: June 9, 2026
    Assignee: Winpak Ltd.
    Inventors: Chen Wan, Ming-Lun Wu
  • Publication number: 20260084400
    Abstract: Described herein are multi-layer laminates and methods of manufacturing said laminates, including multi-layer laminates having improved tear resistance without compromising on other properties such as strength or processability. The disclosed multi-layer laminates include at least a first layer that is suitable for use in a food packaging article, and provides easy tearability (i.e., low or very low tear resistance). In embodiments, this easy tear layer may form the outermost layer of the food packaging article and thereby enable a consumer to tear the food packaging article without the use of a tool such as a knife or a pair of scissors.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 26, 2026
    Applicant: Winpak Ltd.
    Inventors: Mustafa Bilgen, Antonietta Splendiani, Bradley Ranville, Mozerti Azfeltiza Harwood, James Imburgia, Christopher Dartiailh, Mehdi Rafei
  • Publication number: 20260078244
    Abstract: A thermoplastic packaging material composition is provided. The thermoplastic packaging material composition includes from about 30 wt % to 96 wt % of a starch, from about 1 wt % to 60 wt % of a plasticizer, and from about 0.05 wt % to 10 wt % of an adhesion promoter. The adhesion promoter may comprise an amine functional polymer, such as polyethylenimine (PEI). A multilayer packaging article may also be provided. The multilayer packaging article comprises at least a first layer formed from the thermoplastic packaging material composition described above. The multilayer packaging article further may include a second layer adhered to the first layer. The second layer may comprise a thermoplastic resin. The multilayer packaging article may further include a third layer adhered to the second layer. The third layer may comprise a thermoplastic resin such as polyester.
    Type: Application
    Filed: September 17, 2024
    Publication date: March 19, 2026
    Applicant: Winpak Ltd.
    Inventors: Mustafa Bilgen, Sam Grimshaw, Mehdi Rafei, Ronald Asmundson
  • Publication number: 20260054906
    Abstract: A container including a tray and a lidding film is provided. The lidding film is removably coupled to the tray and includes a breakable layer, a lidding layer coupled to the breakable layer, and a PSA layer. A reseal portion of the breakable layer is sealed to a flange of the tray. The PSA layer is arranged between the lidding layer and the breakable layer. The PSA layer includes a reseal portion to adhere to the reseal portion of the breakable layer. The reseal portion of the breakable layer separates from an inner portion when the container is initially opened such that the reseal portion of the breakable layer remains sealed to the flange and the inner portion of the breakable layer remains coupled to the lidding layer. The container is resealed by adhering the reseal portion of the PSA layer to the reseal portion of the breakable layer.
    Type: Application
    Filed: October 30, 2025
    Publication date: February 26, 2026
    Applicant: Winpak Ltd.
    Inventors: Eduard Boja, Christopher Dartiailh, Mustafa Bilgen, James Imburgia, Bradley Ranville
  • Publication number: 20250361388
    Abstract: Described herein are high stiffness, snappable food contact material compositions containing at least one polypropylene, a hydrocarbon resin, and optionally one or more other additives. The disclosed compositions exhibit a combination of mechanical, chemical, and/or optical properties that enable wider use of such polypropylene-based compositions in food packaging applications, including in Form-Fill-Seal food packaging where high stiffness, snappability, thin walls, and good clarity are important factors. Also described herein are articles comprising the disclosed compositions and methods of manufacturing such articles.
    Type: Application
    Filed: August 4, 2025
    Publication date: November 27, 2025
    Applicant: Winpak Ltd.
    Inventors: Chen Wan, Ming-Lun Wu, Ganesan Kumar, Michael Restaino, Jiang Li, Jerald William Knitter
  • Patent number: 12479642
    Abstract: A container including a tray and a lidding film is provided. The lidding film is removably coupled to the tray and includes a breakable layer, a lidding layer coupled to the breakable layer, and a PSA layer. A reseal portion of the breakable layer is sealed to a flange of the tray. The PSA layer is arranged between the lidding layer and the breakable layer. The PSA layer includes a reseal portion to adhere to the reseal portion of the breakable layer. The reseal portion of the breakable layer separates from an inner portion when the container is initially opened such that the reseal portion of the breakable layer remains sealed to the flange and the inner portion of the breakable layer remains coupled to the lidding layer. The container is resealed by adhering the reseal portion of the PSA layer to the reseal portion of the breakable layer.
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: November 25, 2025
    Assignee: Winpak Ltd.
    Inventors: Eduard Boja, Christopher Dartiailh, Mustafa Bilgen, James Imburgia, Bradley Ranville
  • Publication number: 20250326207
    Abstract: A drug resistant laminate is provided. The drug resistant laminate includes a polyamide sealing layer, an aluminum foil layer, and a support layer. The polyamide sealing layer is configured to contact a drug. The aluminum foil layer is affixed to the polyamide sealing layer via a first lamination layer. The support layer is affixed to the aluminum foil layer via a second lamination layer. The polyamide sealing layer may be a coextruded layer including a sealing sublayer arranged to contact the drug and a backing sublayer arranged to be affixed to the aluminum foil layer via the first lamination layer. A melting point of the sealing sublayer may be is less than a melting point of the backing sublayer. Similarly, a melting point of the support layer may be greater than the melting point of the backing sublayer of the polyamide sealing layer.
    Type: Application
    Filed: April 23, 2024
    Publication date: October 23, 2025
    Applicant: Winpak Ltd.
    Inventors: Mustafa Bilgen, Sébastien Fily, Lionel Ventura
  • Publication number: 20250178312
    Abstract: A drug resistant film is provided. The drug resistant film includes a drug contact sealing layer, an aluminum foil layer, a biaxially oriented polyamide layer, and a paper layer. The drug contact layer is configured to contact a drug, such as lidocaine, nicotine, or fentanyl. The aluminum foil layer is affixed to the drug contact sealing layer via a first lamination adhesive. The biaxially oriented polyamide layer is affixed to the aluminum foil layer via a second lamination adhesive. The paper layer is affixed to the biaxially orientated polyamide layer via a third lamination adhesive. According to an example, the drug contact sealing layer comprises an extruded monolayer of COC, EVOH, or PETG. According to an example, the drug contact sealing layer is a coextruded layer comprising a plurality of sublayers.
    Type: Application
    Filed: November 22, 2024
    Publication date: June 5, 2025
    Applicant: Winpak Ltd.
    Inventors: Christopher Neil Bergman Dartiailh, Antonio Jose Cipriano, Juho Lauri Korkala, Mehdi Rafei, Ronald Asmundson
  • Patent number: 12263997
    Abstract: A closure system including a cap and a spout, where the cap and/or spout contain at least one discrete layer of barrier material. In one example, the spout includes a conduit and a seal member, the conduit being arranged about an imaginary axis and the seal member having one or more surfaces configured to be secured to a container. The cap includes an inner circumferential surface, the inner circumferential surface arranged to encompass the conduit. The cap also includes a first discrete layer of thermoplastic resin and a first discrete layer of barrier material and the seal member includes a second discrete layer of thermoplastic resin and a second discrete layer of barrier material.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: April 1, 2025
    Assignee: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Publication number: 20250083885
    Abstract: A container including a tray and a lidding film is provided. The lidding film is removably coupled to the tray and includes a breakable layer, a lidding layer coupled to the breakable layer, and a PSA layer. A reseal portion of the breakable layer is sealed to a flange of the tray. The PSA layer is arranged between the lidding layer and the breakable layer. The PSA layer includes a reseal portion to adhere to the reseal portion of the breakable layer. The reseal portion of the breakable layer separates from an inner portion when the container is initially opened such that the reseal portion of the breakable layer remains sealed to the flange and the inner portion of the breakable layer remains coupled to the lidding layer. The container is resealed by adhering the reseal portion of the PSA layer to the reseal portion of the breakable layer.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 13, 2025
    Applicant: Winpak Ltd.
    Inventors: Eduard Boja, Christopher Dartiailh, Mustafa Bilgen, James Imburgia, Bradley Ranville
  • Publication number: 20250074037
    Abstract: An oriented film having a combination of polyolefin and polyamide layers. The film is low shrink and can be monoaxially or biaxially oriented. The polyolefin layer is positioned between two polyamide layers. A tie resin layer may be included between the polyolefin layer and either or both of the polyamide layers. A barrier layer, such as one formed from ethylene vinyl alcohol, may be positioned inside of the polyamide layers. The polyolefin layer may additionally incorporate a polyamide. The overall composition of the oriented film is selected so that the polyamide content is minimized enough that the film may be recycled in current polyethylene recycling streams.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 6, 2025
    Applicant: Winpak Ltd.
    Inventors: Mustafa Bilgen, Olivier Yves Muggli
  • Publication number: 20250066091
    Abstract: The present disclosure provides semirigid pouch designs and methods of manufacturing pouches. Such pouches can be made of plastic or non-plastic materials and may be easily sorted and recycled within existing rigid packaging recycling streams. The pouches are semirigid, while flexible, and will substantially retain their shape during and following product dispensing. This is accomplished by sealing a lower edge of a wall of semirigid plastic or non-plastic materials to a rigid or semirigid base, enabling the pouch to stand up on the base. Portions of an upper edge of the wall are affixed together to form a space to hold the foodstuffs. Further, the present pouch design does not require an additional label to be applied by the manufacturer, as the present design provides a large, uninterrupted, surface area for printing of advertisements and/or labels directly to the outer surface of the pouch.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 27, 2025
    Applicant: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Publication number: 20250042636
    Abstract: A spill-resistant spout and method of injection molding a spill-resistant spout. The spill-resistant spout includes a conduit portion having an exit aperture in fluid communication with a central channel; and a seal portion having a bottom surface, the seal portion secured to the conduit portion and in fluid communication with the central channel, the bottom surface comprising at least two intake apertures configured to receive foodstuffs from a container. The use of multiple intake apertures increases the surface tension on the foodstuffs attempting to pass through the intake apertures while maintaining or increasing the total flow volume of foodstuffs through the spill-resistant spout. Additionally, the barrier qualities of the spill-resistant spout can be enhanced by providing one or more discrete layers of thermoplastic material and one or more layers of barrier material within at least one portion of the spill-resistant spout.
    Type: Application
    Filed: October 22, 2024
    Publication date: February 6, 2025
    Applicant: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Patent number: 12151865
    Abstract: A spill-resistant spout and method of injection molding a spill-resistant spout. The spill-resistant spout includes a conduit portion having an exit aperture in fluid communication with a central channel; and a seal portion having a bottom surface, the seal portion secured to the conduit portion and in fluid communication with the central channel, the bottom surface comprising at least two intake apertures configured to receive foodstuffs from a container. The use of multiple intake apertures increases the surface tension on the foodstuffs attempting to pass through the intake apertures while maintaining or increasing the total flow volume of foodstuffs through the spill-resistant spout. Additionally, the barrier qualities of the spill-resistant spout can be enhanced by providing one or more discrete layers of thermoplastic material and one or more layers of barrier material within at least one portion of the spill-resistant spout.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: November 26, 2024
    Assignee: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Publication number: 20240384082
    Abstract: Described herein are high stiffness, snappable food contact material compositions containing at least one polypropylene, a hydrocarbon resin, and optionally one or more other additives. The disclosed compositions exhibit a combination of mechanical, chemical, and/or optical properties that enable wider use of such polypropylene-based compositions in food packaging applications, including in Form-Fill-Seal food packaging where high stiffness, snappability, thin walls, and good clarity are important factors. Also described herein are articles comprising the disclosed compositions and methods of manufacturing such articles.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Applicant: Winpak Ltd.
    Inventors: Chen Wan, Ming-Lun Wu
  • Patent number: 12077661
    Abstract: Described herein are high stiffness, snappable food contact material compositions containing at least one polypropylene, a hydrocarbon resin, and optionally one or more other additives. The disclosed compositions exhibit a combination of mechanical, chemical, and/or optical properties that enable wider use of such polypropylene-based compositions in food packaging applications, including in Form-Fill-Seal food packaging where high stiffness, snappability, thin walls, and good clarity are important factors. Also described herein are articles comprising the disclosed compositions and methods of manufacturing such articles.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: September 3, 2024
    Assignee: Winpak Ltd.
    Inventors: Chen Wan, Ming-Lun Wu
  • Publication number: 20230193005
    Abstract: Described herein are high stiffness, snappable food contact material compositions containing at least one polypropylene, a hydrocarbon resin, and optionally one or more other additives. The disclosed compositions exhibit a combination of mechanical, chemical, and/or optical properties that enable wider use of such polypropylene-based compositions in food packaging applications, including in Form-Fill-Seal food packaging where high stiffness, snappability, thin walls, and good clarity are important factors. Also described herein are articles comprising the disclosed compositions and methods of manufacturing such articles.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Applicant: Winpak Ltd.
    Inventors: Chen Wan, Ming-Lun Wu
  • Publication number: 20230193006
    Abstract: Described herein are high stiffness, high impact strength and clarified polypropylene-containing compositions. The disclosed compositions comprise a polypropylene, a nucleating agent, and optionally one or more additives. In certain aspects, the polypropylene includes a first polypropylene and a second polypropylene that is different from the first. The disclosed compositions exhibit high stiffness, high impact strength, improved clarity, and improved thermoformability. Also described herein are articles comprising the disclosed compositions and methods of manufacturing such articles.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Applicant: Winpak Ltd.
    Inventors: Chen Wan, Ming-Lun Wu
  • Patent number: 11613417
    Abstract: A container and method of manufacture of a container made of a single material is provided. The container includes a base having a base perimeter with a surface, and a wall having an upper edge and a lower edge, the upper edge comprising two upper edge portions, wherein the lower edge is affixed about the entire perimeter surface, and the first upper edge portion is affixed to the second upper edge portion, thereby forming a space to hold foodstuffs. The base stock material is cut and formed into a base with the base perimeter. A seal is applied between the lower edge of the wall and the surface of the base perimeter. Another seal is applied to two vertical end portions of the wall, forming a cup-like container with an internal space. A final seal is applied between two portions of the upper edge of the wall completing the container.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: March 28, 2023
    Assignee: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Publication number: 20230040290
    Abstract: A spill-resistant spout and method of injection molding a spill-resistant spout. The spill-resistant spout includes a conduit portion having an exit aperture in fluid communication with a central channel; and a seal portion having a bottom surface, the seal portion secured to the conduit portion and in fluid communication with the central channel, the bottom surface comprising at least two intake apertures configured to receive foodstuffs from a container. The use of multiple intake apertures increases the surface tension on the foodstuffs attempting to pass through the intake apertures while maintaining or increasing the total flow volume of foodstuffs through the spill-resistant spout. Additionally, the barrier qualities of the spill-resistant spout can be enhanced by providing one or more discrete layers of thermoplastic material and one or more layers of barrier material within at least one portion of the spill-resistant spout.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 9, 2023
    Applicant: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews