Patterned dual susceptor
US11407576B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Oct 21, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2581/3497
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A microwave packaging material including a plurality of susceptors is disclosed. Each susceptor includes a plastic film or polymer with a metal layer on one surface of the plastic film and a paper adhered to the plastic film opposite the metal layer. A patterned adhesive is bonded between a first susceptor layer and a second susceptor layer in a pattern bond creating sealed air pockets. A paper board substrate is adhered using an adhesive in a bond pattern to one of the susceptor layers facing the metal of the respective susceptor layer to provide the microwave packing material rigidity. Upon exposure to microwave energy in a microwave oven, moisture is trapped between the paper board substrate and the susceptor layer creating a vapor pressure that causes the sealed air pockets to form expanded air pockets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.