Invention Grant
- Patent Title: Methods, apparatus, and chemical compositions for selectively coating fiber-based food containers
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Application No.: US16726180Application Date: 2019-12-23
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Publication No.: US11686050B2Publication Date: 2023-06-27
- Inventor: Yoke Dou Chung , Yiyun Zhang , Ric Gonzalez , Steve Lucero , Min Wang
- Applicant: Footprint International, LLC
- Applicant Address: US AZ Gilbert
- Assignee: Footprint International, LLC
- Current Assignee: Footprint International, LLC
- Current Assignee Address: US AZ Gilbert
- Agency: Jennings, Strouss & Salmon, P.L.C.
- Main IPC: D21J1/04
- IPC: D21J1/04 ; D21J1/06 ; B65D25/34 ; B05B1/02 ; B65D81/34 ; D21J1/10 ; B05B13/02 ; B65D1/34 ; B05B1/06 ; D21J7/00 ; D21H17/28 ; D21H17/17 ; B29C41/50 ; D21H23/50 ; D21H23/22 ; B05D1/02 ; B05B1/04

Abstract:
Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier. For food containers having deep sidewalls, a spray coating system includes a first nozzle for applying a full cone spray pattern to the bottom surface of the container, and a second nozzle for applying a hollow cone spray pattern to the inside surfaces of the side walls.
Public/Granted literature
- US20200208353A1 Methods, Apparatus, and Chemical Compositions for Selectively Coating Fiber-Based Food Containers Public/Granted day:2020-07-02
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