Insulating microwave interactive packaging
US7923669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249921
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An insulating microwave packaging material (200) is formed by bonding a microwave interactive material substrate (205) that creates sensible heat upon exposure to microwave energy to a second substrate (210) along bond lines (212) arranged in a pattern to form closed cells (214). Upon impingement of the insulating microwave packaging material (200) by microwave energy in a microwave oven, the closed cells (214) expand to form insulating pockets (216). One side of the insulating pocket (216) bulges and lofts above the opposite side. When a food product is situated on the insulating microwave packaging material (200), the insulating pockets (216) insulate the food product from the microwave oven environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.