Invention Grant
US07862869B2 Tear initiation and directional tear films and packages made therefrom
有权
撕裂起始和定向撕裂膜和由其制成的包装
- Patent Title: Tear initiation and directional tear films and packages made therefrom
- Patent Title (中): 撕裂起始和定向撕裂膜和由其制成的包装
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Application No.: US10689478Application Date: 2003-10-20
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Publication No.: US07862869B2Publication Date: 2011-01-04
- Inventor: Daniel S. Papenfuss , Michael Scott Hartman , Amy Lynn Kraimer , Sam Edward Wuest
- Applicant: Daniel S. Papenfuss , Michael Scott Hartman , Amy Lynn Kraimer , Sam Edward Wuest
- Applicant Address: US WI Oshkosh
- Assignee: Milprint, Inc.
- Current Assignee: Milprint, Inc.
- Current Assignee Address: US WI Oshkosh
- Agent Christine E. Parsons
- Main IPC: B32B27/32
- IPC: B32B27/32 ; B32B1/08

Abstract:
The present invention provides a flexible multilayer packaging film and packages formed therefrom wherein the films include a first film layer comprising a first biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and a surface-roughened portion, a second film layer comprising an adhesive, a third film layer comprising a barrier material, a fourth film layer comprising a second biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and at least one score-line; wherein the packages comprise a tear-initiation area and a directional tear zone.
Public/Granted literature
- US20050084636A1 Tear initiation and directional tear films and packages made therefrom Public/Granted day:2005-04-21
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