Abstract: A shelf stable package for shipping and popping corn in a microwave oven comprising, a bowl formed of microwaveable plastic, transparent to microwave energy with a conical bottom, a charge comprising corn kernels and a shortening, which is solid at room temperature, said kernels having a moisture content of at least about 11.5 percent by weight, and a plastic swirl cover layer, said plastic swirl being in the form of a plurality of folds disposed in a spiral arrangement being transparent to microwave energy, and being expansible in response to internal steam pressure generated by popping of said corn kernels. A microwave transparent paperboard shell covers at least a portion of said bowl. A metallized barrier layer can overlay said plastic swirl bonnet cover layer and in turn a paperboard outer cover overlaying said metallized barrier layer.

Abstract: This disclosure is directed to the preparation of oily microcapsules which can be easily tray dried to a free flowing product without requiring special drying equipment. These microcapsules have a cell wall material having a first cell wall of gelatin/carboxymethylcellulose (CMC) which is prehardened (cross-linked) with a material selected from the group consisting of formaldehyde, glyoxal and glutaraldehyde to which there is grafted formaldehyde and urea. The predominant portion, viz., approximately 95% by wt. of these microcapsules have a particle size less than 1500 microns and more characteristically have a particle size ranging from about 100 to about 400 microns (microcapsular diameter). These microcapsules contain less than approximately 3 wt. % free oil and more characteristically less than about 1 wt. % free oil (non-microencapsulated oil) and have less free (unreacted) formaldehyde, which can be extracted with water, than do prior art microencapsulated oily materials.

Abstract: This disclosure is directed to the preparation of dry microencapsulated product, having an oily core material with microcapsule cell wall materials having a first cell wall of gelatin/polyvinyl methylether maleic anhydride copolymer (PVMMA)/carboxymethylcellulose (CMC) which is prehardened (cross-linked) with a material selected from the group consisting of formaldehyde, glyoxal and glutaraldehyde to which there is grafted formaldehyde and resorcinol which is then crosslinked with formaldehyde and urea, and aqueous formulations containing them. Approximately 97% of these microcapsules have a size less than 100 and more characteristically having a particle size peak distribution of 30 to 40 microns (microcapsular diameter). These microcapsules contain less than approximately 3 wt. % free oil and more characteristically less than about 1 wt.