Plastic sheet base for packaging bacon
US6074678A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Mar 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A plastic sheet for packaging meat products such as bacon that consists essentially of a laminate of first and second sheet substrates. The first substrate is a coextruded polystyrene substrate that consists of a non-foam layer and a foam layer that is thinner than the non-foam layer. The second substrate is a coextruded polystyrene substrate that consists of a non-foam layer and a foam layer that is thicker than the non-foam layer. The first and second substrates are secured to each other with the foam layers facing each other. The first substrate provides toughness and a smooth surface for printing information to be visible within the meat product package, and the second substrate provides stiffness at light weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.