초록 ▼

Microwave interactive susceptors in end product condition or form are produced by a continuous in-line production method wherein, under continuous vacuum, a paper or board substrate is first coated with a thin film of monomer which is cured to a polymer, a metal or other microwave interactive suscep

Microwave interactive susceptors in end product condition or form are produced by a continuous in-line production method wherein, under continuous vacuum, a paper or board substrate is first coated with a thin film of monomer which is cured to a polymer, a metal or other microwave interactive susceptor material is vapor or sputter deposited onto the polymer film, either in an overall layer or preselected pattern, and a thin film monomer is deposited over the susceptor layer and cured or polymerized resulting in an end product ready for use without the previously required polyester substrate and without requiring lamination of a metallized film to a paper or board backing. Production of plural layers susceptors is also disclosed.

대표청구항 ▼

A method of producing susceptors for use in the packaging and/or preparation of microwave food products comprising the steps of providing a vacuum deposition chamber containing a first monomer deposit station, a first monomer curing station, a susceptor material deposition station, a second monomer

A method of producing susceptors for use in the packaging and/or preparation of microwave food products comprising the steps of providing a vacuum deposition chamber containing a first monomer deposit station, a first monomer curing station, a susceptor material deposition station, a second monomer deposit station and a second monomer curing station, introducing into the vacuum chamber a substrate comprising a sheet or web of paper, paperboard or like fibrous material, evacuating the chamber, moving the substrate sequentially past the first monomer deposit station, the first monomer curing station, the susceptor material deposition station, the second monomer deposit station and the second monomer curing station within the chamber, depositing a first thin film of a curable monomer onto the substrate to seal the fibrous surface of the substrate and form a smooth surfaced, uninterrupted, continuous layer of the monomer on the substrate, and curing the first film of monomer to polymerize the same, depositing a continuous, uninterrupted thin film of a microwave interactive susceptor material of uniform thickness onto the polymerized first thin film, depositing a continuous, uninterrupted second thin film of a curable monomer of uniform thickness onto the film of susceptor material and curing the second film of monomer to polymerize the same, and removing the coated substrate from the chamber, the coated substrate comprising a microwave interactive susceptor consisting essentially of a fibrous material substrate, a thin, continuous, uninterrupted, smooth surfaced first polymer film polymerized onto the substrate, a thin uniform, uninterrupted, continuous film. Of microwave interactive material on the first polymer film, and a thin, uniform, uninterrupted, continuous second polymer film polymerized onto and covering the film of microwave interactive susceptor material.