Method of making microwave heatable materials
US4917748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Jan 19, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2581/3494
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention provides that receptor films for use in microwave ovens for the browning and crisping of foodstuff are created by forming a composition which is liquid in nature and contains interactive particles. The composition is laid down in order to form a film which is then dried in order to fix the interactive particles in distributed form so that they will behave as an interactive layer when subjected to microwave radiation. It is suggested that the interactive particle layer should be covered by a protective layer such as heat curable varnish in order to isolate the particles from the foodstuff which will be adjacent thereto to be crisped and browned thereby. The composition comprises a cross linking and heat resistant resin acting as a binder so that when the composition is applied on a receiving surface, it is cured for example by subjecting it to heat to fix the particles in distributed condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.