Method of making a patch for a shrinkable bag
US4770731A · kind A · utility
26Cited by
19References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Dec 4, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2275/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a protective patch for biaxially a 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 preferably comprises outer layers of a blend of linear low density polyethylene and ethylene vinyl acetate copolymer and inner layers of ethylene vinyl acetate copolymer. The patch is heat shrinkable with the bag. A method of making the patch is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.