Invention Grant
- Patent Title: Closure edge protection via polymer coated metal
- Patent Title (中): 通过聚合物涂层金属封闭边缘保护
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Application No.: US12052379Application Date: 2008-03-20
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Publication No.: US08210377B2Publication Date: 2012-07-03
- Inventor: James L. Martin , Larry A. Hottle
- Applicant: James L. Martin , Larry A. Hottle
- Applicant Address: US IL Alsip
- Assignee: Crown Packaging Technology, Inc.
- Current Assignee: Crown Packaging Technology, Inc.
- Current Assignee Address: US IL Alsip
- Agency: Woodcock Washburn LLP
- Main IPC: B65D41/16
- IPC: B65D41/16 ; B65D41/04 ; B65D53/00

Abstract:
Metal closure components and methods for making the same are provided. The closures may be formed from a metal sheet having a pre-formed polymer film adhered on at least one face. A circular blank may be cut from the sheet, such that the blank may have a circular “raw” cut edge unprotected by the polymer film. The metal blank may then be formed such that the cut edged may be embedded into the film.
Public/Granted literature
- US20090236353A1 CLOSURE EDGE PROTECTION VIA POLYMER COATED METAL Public/Granted day:2009-09-24
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