Abstract: A package for an optical disc and an optical disc sleeve includes upper and lower formed plastic sheets sized to receive and support therebetween the optical disc and the optical disc sleeve in side by side relationship. The lower sheet is shaped to support the optical disc and defines an annular depression made up of a central hub, an inner ledge, an annular floor surrounding the inner ledge, an array of raised stiffening structures formed in the annular floor, and at least one outer ledge positioned around the annular floor. The upper sheet is shaped to cover the optical disc and the optical disc sleeve and includes a closed end receptacle shaped to receive an end portion of the hub. The hub forms a friction fit with the central opening in the disc to hold the disc on the hub. The upper and lower sheets define peripheral shoulders shaped to fit together to increase the rigidity of the sheets.

Abstract: A package for an optical disc and an optical disc sleeve includes upper and lower formed plastic sheets sized to receive and support therebetween the optical disc and the optical disc sleeve in side by side relationship. The lower sheet is shaped to support the optical disc and defines an annular depression made up of a central hub, an inner ledge, an annular floor surrounding the inner ledge, an array of raised stiffening structures formed in the annular floor, and at least one outer ledge positioned around the annular floor. The upper sheet is shaped to cover the optical disc and the optical disc sleeve and includes a closed end receptacle shaped to receive an end portion of the hub. The hub has an enlarged head that forms an interference fit with the central opening in the disc to hold the disc on the hub. The upper and lower sheets define peripheral shoulders shaped to fit together to increase the rigidity of the sheets.

Abstract: A method for producing a fire retardant insulating composition in which a fire retardant amount of monoammonium phosphate (MAP) having polyphosphate content of the range about 0 to about 10 weight percent is incorporated into a cellulose-base insulating material to produce a nontacky, fire retardant insulating composition. In an embodiment of the invention the monoammonium phosphate having a polyphosphate content in the range of up to about 10 weight percent is prepared by (1) contacting NH.sub.3 with an aqueous solution of H.sub.3 PO.sub.4 at a temperature of up to 177.degree. C. to form MAP and allowing the MAP thus formed slowly to cool to a temperature in the range of about 54.degree. to 104.degree. C. In another method for preparing MAP having a polyphosphate content in the range of up to about 10 weight percent a commercial aqueous ammonium phosphate fertilizer solution is treated by contacting it with an aqueous solution of H.sub.3 PO.sub.

Abstract: A feed supplement consisting essentially of 100 parts by weight of dry urea, 22.1 to 46.4 parts by weight of ammonium phosphate solids and 126 to 174 parts by weight of water. In a further embodiment a feed supplement consisting essentially of urea, ammonium phosphate, molasses and water is disclosed.