Invention Grant
US09561889B2 Easy opening packaging article made from heat-shrinkable film exhibiting directional tear
有权
易开封的包装制品由热收缩膜制成,呈现定向撕裂
- Patent Title: Easy opening packaging article made from heat-shrinkable film exhibiting directional tear
- Patent Title (中): 易开封的包装制品由热收缩膜制成,呈现定向撕裂
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Application No.: US12152686Application Date: 2008-05-16
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Publication No.: US09561889B2Publication Date: 2017-02-07
- Inventor: Richard M. Dayrit , Robert A. Odabashian , Janet W. Rivett , Thomas D. Kennedy , Diana Huerta , Tom Bonner , Rodney R. Hodgson , Mendy W. Mossbrook , H. Walker Stockley , Richard K. Watson
- Applicant: Richard M. Dayrit , Robert A. Odabashian , Janet W. Rivett , Thomas D. Kennedy , Diana Huerta , Tom Bonner , Rodney R. Hodgson , Mendy W. Mossbrook , H. Walker Stockley , Richard K. Watson
- Applicant Address: US NC Charlotte
- Assignee: Cryovac, Inc.
- Current Assignee: Cryovac, Inc.
- Current Assignee Address: US NC Charlotte
- Main IPC: B65D75/00
- IPC: B65D75/00 ; B65D65/26 ; B65D75/58 ; B65D75/68 ; B29C65/00 ; B29C65/40 ; B29C65/02 ; B32B27/20 ; B32B27/32 ; B32B27/34

Abstract:
A packaging article has tear initiators for initiating a manual tear that can be propagated to open a package and allow a product to be readily removed therefrom, without the use of a knife or scissors or any other implement. The packaging article is made from a heat-shrinkable multilayer film having at least one layer containing an incompatible polymer blend, and/or a layer containing an inorganic filler, and/or a layer having a high Young's modulus. The film also has a Peak Load Impact Strength of at least 50 Newtons per mil, The tear initiators can be used to generate a manual machine direction tears to open the package, with the manual machine direction tear being capable of propagating in the machine direction to the opposite edge of the packaging article. A process for making a package and manually opening the package is also disclosed.
Public/Granted literature
- US20080292821A1 Easy opening packaging article made from heat-shrinkable film exhibiting directional tear Public/Granted day:2008-11-27
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