Barrier film for food packaging
US9587093B2 · kind B2 · utility
11Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2013 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/27
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Barrier films are prepared from a blend of two high density polyethylene blend components and a high performance organic nucleating agent. The two high density polyethylene blend components have substantially different melt indices. Large reductions in the moisture vapor transmission rate of the film are observed in the presence of the nucleating agent when the melt indices of the two blend components have a ratio of greater than 10/1. The resulting barrier films are suitable for the preparation of packaging for dry foods such as crackers and breakfast cereals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.