Invention Grant
- Patent Title: Flexible packaging structure with a built-in opening and reclose feature
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Application No.: US16678558Application Date: 2019-11-08
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Publication No.: US11338977B2Publication Date: 2022-05-24
- Inventor: Robert Charles Hebert , Scott William Huffer , Barry Roland Reese , John A. Prizzi
- Applicant: Sonoco Development, Inc.
- Applicant Address: US SC Hartsville
- Assignee: Sonoco Development, Inc.
- Current Assignee: Sonoco Development, Inc.
- Current Assignee Address: US SC Hartsville
- Agency: Nelson Mullins Riley & Scarborough LLP
- Main IPC: B65D75/58
- IPC: B65D75/58 ; B65D75/64 ; B29C59/00 ; B31B70/74 ; B31B70/855 ; B32B27/32 ; B32B37/12 ; B32B38/00 ; B65D77/20 ; B31B70/81 ; B31B160/10 ; B31B170/20 ; B31B155/00

Abstract:
The invention comprises, in an embodiment, a resealable packaging structure comprising a container having a bottom and at least one sidewall extending upwardly therefrom, wherein the sidewall terminates in a flange. A flexible resealable lid is sealed to the flange. The lid comprises a polyethylene terephthalate layer disposed adjacent the flange, a pressure sensitive adhesive layer disposed adjacent the polyethylene terephthalate layer, and an oriented polypropylene layer disposed adjacent the pressure sensitive adhesive layer. The polyethylene terephthalate layer comprises a laser scored line which penetrates through the thickness of the inner layer but not through the outer layer and defines an opening portion that can be lifted out of the plane of the inner layer, thereby creating an opening through the lid defined by the laser score line.
Public/Granted literature
- US20200071046A1 FLEXIBLE PACKAGING STRUCTURE WITH A BUILT-IN OPENING AND RECLOSE FEATURE Public/Granted day:2020-03-05
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