Reflective temperature compensating microwave susceptors
US5019681A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Feb 14, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S99/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reflective temperature compensating microwave susceptor is disclosed. The susceptor has a microwave interactive heating layer which may be characterized in various ways. In one aspect, the microwave interactive heating layer is operable to provide an increase in reflectance by several factors during heating from 23.degree. C. to 250.degree. C. The microwave interactive heating layer may have a surface resistance that decreases significantly from 23.degree. C. to 250.degree. C. In another aspect, the microwave interactive heating layer may have an electrical conductivity which increases significantly from 23.degree. to 250.degree. C. The microwave interactive heating layer is preferably formed as a thin film deposited upon a substrate, preferably a sheet of polyester. The coated polyester is adhesively bonded to a support member. The microwave interactive heating layer preferably comprises TiO.sub.x, where x has a value between two and one. Most preferably, the microwave interactive heating layer predominantly comprises Ti.sub.2 O.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.