摘要:
A selectively permeable membrane microwave susceptor for use in food packaging is disclosed. The susceptor comprises a substrate having at least one absorbing coating and at least one reflecting coating deposited thereon. Either one or both of the absorbing coating or the reflecting coating can be varied to control the amount of microwave energy reaching the absorbing coating, thereby controlling the overall amount of susceptor heating.
摘要:
A selectively permeable membrane microwave susceptor for use in food packaging is disclosed. The susceptor comprises a substrate having at least one absorbing coating and at least one reflecting coating deposited thereon. Either one or both of the absorbing coating or the reflecting coating can be varied to control the amount of microwave energy reaching the absorbing coating, thereby controlling the overall amount of susceptor heating.
摘要:
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.
摘要:
A medium formed by a mixture of polymeric binder with conductive metal and either semiconductive particles or galvanic couple alloy particles that can be coated or printed on a substrate to convert electromagnetic radiation to heat without arcing and produce increase heating of foods. Conversion efficiency can be controlled by the choice, thickness, pattern and amount of materials used in the medium. The medium can be formulated to be used repeatedly without burn out or can be formulated to be used only once after which it becomes microwave inert. The conductive particles are typically aluminum, copper, zinc and nickel; the semiconductive particles are typically carbon, titanium carbide, silicon carbide and zinc oxide; and the galvanic couple alloy particles are typically aluminum-nickel alloy, aluminum-cobalt alloy and aluminum-copper alloy.
摘要:
The present invention provides a thermoplastic resin sheet and its molded article for a packaging material which is heated in a microwave oven and for shielding electromagnetic waves. The above-mentioned resin sheet and molded article are characterized by generating heat when irradiated with microwaves.The present invention is directed to an electroconductive thermoplastic resin sheet which is prepared by first superposing an electroconductive nonwoven fabric mainly comprising electroconductive fibers and heat-meltable fibers upon one surface, both surfaces, or a part or all of the surface of a thermoplastic resin film as a base material layer, further superposing a thermoplastic resin film as a protective layer upon the nonwoven fabric so that they may come in contact with each other, heating and contact-bonding them at a temperature of the melting point or higher of the heat-meltable fibers. The present invention is also directed to an electroconductive thermoplastic resin-molded article which is prepared by heating the aforesaid electroconductive thermoplastic resin sheet up to a temperature at which the resin sheet softens, setting the resin sheet between a pair of female and male molds, the surface of at least one of which comprises a heat-resistant rubber, and then mating both the molds to mold the resin sheet.
摘要:
The present invention relates to improvements in the design and construction of apparatus for dispensing microwaveable hot melt adhesives and other heat sensitive materials. The apparatus comprises a dispenser which is heated by microwaves and then used to dispense a material therefrom. The dispenser is specifically designed to convert microwave energy into heat and to transfer the heat to the material to be dispensed in a more efficient and/or safe manner.
摘要:
An electromagnetic wave energy conversion heat-generating material comprising zinc oxide whisker used as a heat-generating material. A heating container for an electronic oven, comprising the zinc oxide whiskers, and a microwave oven provided with a heat generator comprising the zinc oxide whiskers. The present electromagnetic wave energy conversion heat-generating material generates heat upon exposure to microwaves. In a preferred embodiment, the zinc oxide whiskers include a central part and needle crystal projections extending from the central part in plural, preferable four, different axial directions.
摘要:
A microwave absorbing heater comprising a porous body containing silicon oxide and having a porosity of 40 to 95%.A microwave absorbing heater may be formed of a porous body having a porosity of 40 to 95% and composed of an inorganic electrical insulating material, and a silicon carbide film formed on the surface thereof.Since the microwave absorptivity is high, the dissipation of water from a heated object is easy and the heat dissipation is small, the heating efficiency is great. The thermal shock resistance is also high.
摘要:
A medium formed by a mixture of polymeric binder with conductive and semiconductive particles that can be coated or printed on a substrate to convert electromagnetic radiation to heat without arcing and produce increase heating of foods. Conversion efficiency can be controlled by the choice, thickness, pattern and amount of materials used in the medium. The medium can be used repeatedly without burn out. The conductive particles are typically aluminum, copper, zinc and nickel and the semiconductive particles are typically carbon, titanium carbide and zinc oxide.