Abstract: A vented container for produce having a base and a cover which are at least substantially impervious to gas transfer. The base includes a base panel and side walls. Preferably two vent apertures are formed through the side wall, and a plug is provided for each vent aperture, to permit the vent apertures to be selectively opened. The plugs may be mounted upon vent toggles, such that manual pivoting of the vent toggles will open or close the associated vent aperture. The selective opening of the vent apertures permits gas exchange between the interior of the container and the ambient atmosphere, providing improve storage for produce. Maintaining the vent apertures closed permits the container to be used as a normal sealed food storage container. The base panel preferably includes an alternating series of hills and troughs to segregate condensate within the container. The troughs may be downward concave to further subdivide the condensate within each trough.

Abstract: A vented container for produce having a base and a cover which are at least substantially impervious to gas transfer. The base includes a base panel and side walls. Preferably two vent apertures are formed through the side wall, and a plug is provided for each vent aperture, to permit the vent apertures to be selectively opened. The plugs may be mounted upon vent toggles, such that manual pivoting of the vent toggles will open or close the associated vent aperture. The selective opening of the vent apertures permits gas exchange between the interior of the container and the ambient atmosphere, providing improve storage for produce. Maintaining the vent apertures closed permits the container to be used as a normal sealed food storage container. The base panel preferably includes an alternating series of hills and troughs to segregate condensate within the container. The troughs may be downward concave to further subdivide the condensate within each trough.

Abstract: This invention relates to molding compositions comprising mixtures of wholly aromatic polyesters and fillers. These compositions can be molded, with minimal processing difficulties, into useful articles, such as ovenware, having good mechanical properties and pleasing visual appearances.

Abstract: This invention relates to extrusion-grade compositions comprising mixtures of wholly aromatic polyesters. These compositions can be extruded into smooth films and sheets having good properties and pleasing visual appearances.

Abstract: Permanent ovenware capable of repeated use in both conventional thermal and microwave ovens fabricated from wholly aromatic polyester compositions and, more particularly, from oxybenzoyl polyester compositions containing up to about 60% of talc having present a minimum content of material decomposable at elevated temperatures.

Abstract: Disclosed is a screw extruder having an upstream feed section in which the bore and screw is of substantially larger diameter than that in a downstream melting section. The two screws are structurally separable and may be operably independent of each other. The extruder is constructed for removal of the smaller screw outwardly through the downstream end of the extruder. Various arrangements for driving the two screws are disclosed herein.