Protective patch for shrinkable bag
US4755403A · kind A · utility
71Cited by
5References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Apr 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a protective patch for a biaxially heat shrinkable, thermoplastic vacuum bag for protecting the bag from puncture by sharp protruding bones in bone-in cuts of meat which are vacuum packaged within the bags. The patch is made from multi-layer film and comprises a layer of linear low density polyethylene and a layer of ethylene vinyl acetate copolymer. The patch is biaxially heat shrinkable and shrinks with the bag. A method of making the patch is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.