公开(公告)号：US20200346833A1

公开(公告)日：2020-11-05

申请号：US16929989

申请日：2020-07-15

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B65D77/20 ,  B65D25/14 ,  B65D51/24 ,  B65B7/16 ,  B65D53/02 ,  B65B7/28 ,  B29C65/04 ,  B65B25/04 ,  B65B61/20

Abstract: A packaging container for holding contents such as fresh food. The container comprises a tray having a flange, a pre-formed scaling ring and a flexible film for sealing in the contents of the tray. The sealing ring is made from fiber, filament or tape (“FFT”) that is shaped into a shape that matches the shape of the tray flange. The sealing ring is adhered to the tray flange by heat welding or other means and the flexible film is adhered to the sealing ring.

公开(公告)号：US12208596B2

公开(公告)日：2025-01-28

申请号：US17990826

申请日：2022-11-21

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B32B27/30 ,  B29C48/18 ,  B29C51/14 ,  B32B7/12 ,  B32B18/00 ,  B32B27/26 ,  B32B27/32 ,  B32B37/12

Abstract: An improved sheet for making a three-dimensional article for holding food, such as a food tray, and a method of making a three-dimensional article. The sheet comprises a substrate and a laminate film. The laminate film may comprise a ceramic film and a copolymer layer. The copolymer layer can repair any cracks that occur due in the ceramic film when the sheet is thermoformed. The food tray is considered a single material that is recyclable.

公开(公告)号：US20230092236A1

公开(公告)日：2023-03-23

申请号：US17990826

申请日：2022-11-21

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B32B27/30 ,  B32B27/32 ,  B32B7/12 ,  B32B18/00 ,  B32B27/26 ,  B29C51/14 ,  B29C48/18

Abstract: An improved sheet for making a three-dimensional article for holding food, such as a food tray, and a method of making a three-dimensional article. The sheet comprises a substrate and a laminate film. The laminate film may comprise a ceramic film and a copolymer layer. The copolymer layer can repair any cracks that occur due in the ceramic film when the sheet is thermoformed. The food tray is considered a single material that is recyclable.

公开(公告)号：US20190225401A1

公开(公告)日：2019-07-25

申请号：US15877540

申请日：2018-01-23

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B65D77/20 ,  B65B7/16 ,  B65D51/24 ,  B65D25/14

Abstract: A packaging container for holding contents such as fresh food. The container comprises a tray having a flange, a pre-formed sealing ring and a flexible film for sealing in the contents of the tray. The sealing ring is made from fiber, filament or tape (“FFT”) that is shaped into a shape that matches the shape of the tray flange. The sealing ring is adhered to the tray flange by heat welding or other means and the flexible film is adhered to the sealing ring.

公开(公告)号：US11565512B2

公开(公告)日：2023-01-31

申请号：US17126352

申请日：2020-12-18

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B32B27/30 ,  B32B27/32 ,  B32B7/12 ,  B32B18/00 ,  B32B27/26 ,  B29C51/14 ,  B29C48/18 ,  B32B37/12

Abstract: An improved sheet for making a three-dimensional article for holding food, such as a food tray, and a method of making a three-dimensional article. The sheet comprises a substrate and a laminate film. The laminate film may comprise a ceramic film and a copolymer layer. The copolymer layer can repair any cracks that occur in the ceramic film when the sheet is thermoformed. The food tray is considered a single material that is recyclable.

公开(公告)号：US11325767B2

公开(公告)日：2022-05-10

申请号：US16929989

申请日：2020-07-15

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B65D77/20 ,  B65D25/14 ,  B65D51/24 ,  B65B7/16 ,  B65D53/02 ,  B65B7/28 ,  B29C65/04 ,  B65B25/04 ,  B65B61/20 ,  B65B25/00 ,  B29C65/48 ,  B29C65/50 ,  B29C65/00 ,  B29C65/18 ,  B29C65/08 ,  B29C65/76 ,  B32B27/08

Abstract: A packaging container for holding contents such as fresh food. The container comprises a tray having a flange, a pre-formed scaling ring and a flexible film for sealing in the contents of the tray. The sealing ring is made from fiber, filament or tape (“FFT”) that is shaped into a shape that matches the shape of the tray flange. The sealing ring is adhered to the tray flange by heat welding or other means and the flexible film is adhered to the sealing ring.

公开(公告)号：US20210206151A1

公开(公告)日：2021-07-08

申请号：US17126352

申请日：2020-12-18

Applicant: Sonoco Development, Inc.

Inventor： Richard A. Schwarz

IPC: B32B27/30 ,  B32B27/32 ,  B32B7/12 ,  B32B18/00 ,  B32B27/26 ,  B29C48/18 ,  B29C51/14

Abstract: An improved sheet for making a three-dimensional article for holding food, such as a food tray, and a method of making a three-dimensional article. The sheet comprises a substrate and a laminate film. The laminate film may comprise a ceramic film and a copolymer layer. The copolymer layer can repair any cracks that occur in the ceramic film when the sheet is thermoformed. The food tray is considered a single material that is recyclable.