Method of removing sulfur odors from packages
US7241481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Dec 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An article, such as a polymeric film, sachet, purge control pad, or label, includes a sulfur scavenger. In some embodiments, an oxygen scavenger is also included. A method includes providing an article, including a sulfur scavenger and an oxygen scavenger; and subjecting the article to a dosage of actinic radiation effective to trigger the oxygen scavenger. A method of reducing the sulfur content of a package containing a food product includes either (1) providing a film including a layer including a zinc ionomer, and a layer including an oxygen scavenger; packaging the food product in the film; and storing the package for at least 24 hours; or (2) providing the food product at a temperature of ≦40° F.; providing a film including a layer including a sulfur scavenger; packaging the food product in the film; and storing the package for at least 24 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.