Localized microwave radiation heating
AssigneeDennison Manufacturing Company
InventorsLaurence E. Tighe, Tim Parker
Life of this patent
Estimating the term…
Abstract
A medium formed by a resin binder with conductive and semiconductive particles that can be coated on a substrate to convert electromagnetic radiation to heat. Conversion efficiency can be controlled by the choice and amount of materials used in the medium, which can be used repeatedly without burn out.
Claims14
A microwave susceptor package for controlled conversion of microwave radiation to heat to brown or crispen food contained in the package without causing arcing, comprising:
- a substrate which is configured to hold food to be heated;
- and
- a fluid medium coated or selectively printed on said substrate, comprising a reisn binder selected from the groups consisting of polysulfones, polyethersulfones, polyolefins, epoxies, phenolics, polystyrenes, phenoxies, halocarbons, acrylics, and vinyls;
- and a filler comprising metallic particles and semiconductor carbon black particles dispersed in said resin binder in a weight ratio of metallic particles to semiconductor particles of between 5:1 to 30:1, said metallic particles being selected from the group consisting of nickel, iron, zinc, copper, and aluminum particles.
A microwave susceptor package for controlled conversion of microwave radiation to heat to brown or crispen food contained in the package without causing arcing, comprising:
- a substrate which is configured to hold food to be heated;
- and
- a fluid medium coated or selectively printed on said substrate, comprising a resin binder selected from the group consisting of polysulfones, polyethersulphones, epoxies, phenolics, polystyrenes, phenoxies, halocarbons, acrylics, and vinyls;
- and a filler comprising aluminum particles and carbon black particles dispersed in said resin binder in a weight ratio of aluminum to particles carbon black particles from 5:1 to 30:1.
A method of producing a microwave susceptor package or container for controlled conversion of microwave radiation to heat without causing arcing during use, comprising:
- (a) mixing a resin solution and a dispersant solution, said resin solution comprising a heat resistant thermoplastic or thermoset resin;
- (b) dispersing metallic particles and carbon black particles in said mixture in a weight ratio from 5:1 to 30:1 metallic particles to carbon black particles, said metallic particles being selected from the group consisting of nickel, iron, zinc, copper, and aluminum particles;
- and depositing the resulting material on a substrate.
Dependencies are inferred from the claim text.