Patents Assigned to WINPAK LTD.
  • 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
  • Publication number: 20220297900
    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: Application
    Filed: March 14, 2022
    Publication date: September 22, 2022
    Applicant: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Publication number: 20220267072
    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: Application
    Filed: February 19, 2021
    Publication date: August 25, 2022
    Applicant: Winpak Ltd.
    Inventors: Manuel Jose Moreno Brociner, Mustafa Bilgen, Olivier Yves Muggli, Ashley Robert Andrews
  • Publication number: 20140134302
    Abstract: A package has inner and outer layers of formed web material. The outer layer has a bottom wall portion, and has a side wall portion projecting upward from the bottom wall portion. A flange portion of the outer layer projects outward from an upper end of the side wall portion. The inner layer has bottom and side wall portions defining a cavity for containing a product. The inner layer further has a flange portion that is sealed to the flange portion of the outer layer fully around the upper end of the cavity. The bottom and side wall portions of the inner layer are nested within the bottom and side wall portions of the outer layer, and are unattached to the bottom and side wall portions of the outer layer.
    Type: Application
    Filed: March 8, 2013
    Publication date: May 15, 2014
    Applicant: WINPAK LTD.
    Inventor: Brian Hodge