Abstract: A microwave heating construct comprises a first panel and a second panel, each comprising a microwave energy interactive material. The panels are partially joined to one another in an opposed, facing relationship such that an unjoined area is defined between the first panel and the second panel. The unjoined area is in communication with an open peripheral edge of the construct. The first panel includes an aperture in communication with the unjoined area between the first panel and the second panel.

Abstract: A microwave energy interactive structure includes a layer of indium tin oxide, which may be supported on a microwave energy transparent substrate. In one embodiment, the microwave energy interactive structure may have at least one of an oxygen transmission rate of less than about 0.05 cc/m2/day and a water vapor transmission rate of less than about 0.09 g/m2/day.

Abstract: A tool and method for forming a container from a construct. The tool comprising a cavity for receiving a construct, a core operatively associated with the cavity and being operable to move into the cavity, an injection cavity for receiving injection-molding material and directing injection-molding material around at least a portion of the perimeter of the construct, and a clamping feature. The clamping feature is operatively connected to at least one of the cavity and the core and is for clamping a peripheral portion of the construct as the core moves into the cavity to form the construct into the container.

Abstract: A thermally insulated susceptor structure includes a dimensionally stable corrugated base, a first susceptor, and a second susceptor. At least one of the first susceptor and second susceptor may circumscribe one or more microwave energy transparent areas that allow the transmission of microwave energy through the respective susceptor and/or create localized fields that enhance heating, browning and/or crisping of an adjacent food item.

Abstract: In one embodiment, an insulating microwave packaging material (200) includes a microwave interactive material substrate (205) joined to a second substrate (210) along bond lines (212) to define closed cells (214). Upon impingement of the insulating microwave packaging material (200) by microwave energy in a microwave oven, the closed cells (214) expand to form insulating pockets (216). One side of the insulating pocket (216) bulges and lofts above the opposite side. When a food product is situated on the insulating microwave packaging material (200), the insulating pockets (216) insulate the food product from the microwave oven environment.

Abstract: A microwave insulating material includes a dimensionally stable support, a patterned adhesive layer overlying at least a portion of the support, a polymer film layer overlying the patterned adhesive layer, and a plurality of expandable cells disposed between the support and the polymer film layer and defined by the patterned adhesive layer, wherein the expandable cells vary in size. A self-sealing microwave package includes a sheet of insulating material including a first surface, and a thermally activatable adhesive applied to at least a portion of the first surface.

Abstract: A construct for heating a food product. The construct comprises a first centerline extending in a first direction and a second centerline extending in a second direction, wherein the first centerline is substantially perpendicular to the second centerline, a base, a pair of opposed platforms extending upwardly from the base. The pair of opposed platforms are separated by a recess extending in the second direction. The construct comprises at least one locating feature foldably connected to the construct and being located between the opposed platforms for locating a food product on one of the opposed platforms.

Abstract: A method of forming a container from a construct. The method includes obtaining a tool having a cavity, a core, and an articulated section for being moveable within the cavity relative to the cavity and the core. The method further includes placing a construct between the cavity and the core, moving the core relative to the cavity so that the articulated section at least partially initially grips a portion of the construct, and further moving the core into the cavity. The portion of the construct remains gripped by the articulated section in the cavity during the further moving of the core.

Abstract: A tray having at least one sidewall having a top edge, an interior surface, an exterior surface, and a bottom surface adjacent to the sidewall. The bottom surface and the interior surface combine to form a product receiving space of the tray. The tray has an injection-molded feature having an anchor portion and a flange portion. The anchor portion is adjacent the interior surface of the at least one sidewall, and the flange portion extends from the anchor portion and is adjacent the top edge of the at least one sidewall.

Abstract: A microwave heating construct includes a base for underlying a food item and a cover for overlying the food item. The cover may include a plurality of resilient, deformable tabs extending from an opening, where each tab includes microwave energy interactive material. The tabs may be capable of independently flexing in response to an urging force.

Abstract: Various constructs and systems for heating a dough-based food item in a microwave oven are provided.

Abstract: A tool and method for forming a container from a construct. The tool comprising a cavity for receiving a construct, a core operatively associated with the cavity and being operable to move into the cavity, an injection cavity for receiving injection-molding material and directing injection-molding material around at least a portion of the perimeter of the construct, and a clamping feature. The clamping feature is operatively connected to at least one of the cavity and the core and is for clamping a peripheral portion of the construct as the core moves into the cavity to form the construct into the container.

Abstract: A microwave energy interactive structure includes a first susceptor film including a first layer of microwave energy interactive material supported on a first polymer film, a moisture-containing layer joined to the first layer of microwave energy interactive material, an adjoining layer joined to the moisture-containing layer such that the moisture-containing layer is disposed between the susceptor film and the adjoining layer, and a second layer of microwave energy interactive material on a side of the adjoining layer opposite the moisture-containing layer. The adjoining layer may be joined to the moisture-containing layer by a discontinuous adhesive layer.

Abstract: A package configured to receive a food item for storage and heating therein is disclosed. The package includes an opening and a closure mechanism and comprises an insulating microwave material. A plurality of packages in a stacked relation also is provided.

Abstract: A package configured to receive a food item for storage and heating therein is disclosed. The package includes an opening and a closure mechanism and comprises an insulating microwave material. A plurality of packages in a stacked relation also is provided.

Abstract: Various constructs that absorb exudates and enhance browning and crisping of a food item during heating in a microwave oven are provided.

Abstract: The combination of insulating material with microwave interactive food packaging for enhanced cooking properties is disclosed. An insulating microwave packaging material (200) and a method of making the same are also disclosed. In one embodiment, the insulating microwave packaging material (200) is formed by bonding a microwave interactive material substrate (205) that creates sensible heat upon exposure to microwave energy to a second substrate (210) along bond lines (212) arranged in a pattern to form closed cells (214). Upon impingement of the insulating microwave packaging material (200) by microwave energy in a microwave oven, the closed cells (214) expand to form insulating pockets (216). One side of the insulating pocket (216) bulges and lofts above the opposite side. When a food product is situated on the insulating microwave packaging material (200), the insulating pockets (216) insulate the food product from the microwave oven environment.

Abstract: An insulating microwave packaging material (200) is formed by bonding a microwave interactive material substrate (205) that creates sensible heat upon exposure to microwave energy to a second substrate (210) along bond lines (212) arranged in a pattern to form closed cells (214). Upon impingement of the insulating microwave packaging material (200) by microwave energy in a microwave oven, the closed cells (214) expand to form insulating pockets (216). One side of the insulating pocket (216) bulges and lofts above the opposite side. When a food product is situated on the insulating microwave packaging material (200), the insulating pockets (216) insulate the food product from the microwave oven environment.

Abstract: A tray or container which may be hermetically sealed having a flange, rim, handle, rib, bottom surface, sidewall, or other portion that is encapsulated by or formed from injection molded material

Abstract: A microwave energy interactive web includes a reagent that is responsive to heat. The microwave energy interactive web may be used to form a package for heating a food item.