Abstract: The invention is a laminate made of very thin copper sheet preferably between 0.0005 and 0.01 inches thick, aluminum sheet preferably between 0.004 and 0.04 inches thick, and adhesive between the copper and aluminum sheets. The cost of the aluminum, adhesive, and the manufacturing process combined are much less expensive than solid copper sheet of 0.020 inches in thickness. However, when the copper sheet of the laminate is on the outside, the aesthetic qualities are indistinguishable from heavyweight solid copper sheet.

Abstract: An ion-exchange media comprising a modified polysaccharide material and a modified particulate polymeric material, said modified materials comprising a polysaccharide and particulate polymeric materials covalently bonded to a synthetic polymer, said synthetic polymer comprising a copolymer made from a polymerization of:(a) a polymerizable compound having a chemical group capable of covalently coupling, directly or indirectly, to said materials; and(b) a polymerizable compound containing (i) an ionizable chemical group or (ii) a chemical group capable of transformation to an ionizable chemical group.The media is useful to selectively remove heavy metal contaminants from aqueous solutions containing said contaminants.

Abstract: An ion-exchange media comprising a modified polysaccharide material and a modified silica material, said modified materials comprising a polysaccharide and silica materials covalently bonded to a synthetic polymer, said synthetic polymer comprising a copolymer made from a polymerization of:(a) a polymerizable compound having a chemical group capable of covalently coupling, directly or indirectly, to said materials; and(b) a polymerizable compound containing (i) an ionizable chemical group or (ii) a chemical group capable of transformation to an ionizable chemical group.The media is used to selectively remove heavy metal contaminants from aqueous solutions containing said contaminants.

Abstract: A slow release fertilizer composition providing to a plant a controlled amount of plant primary nutrients and micronutrients over a prolonged period of time is described. The solubility and concentration of each of the plant nutrients is determined by the addition to the fertilizer composition of specified fertilizer constituents or components which on going into solution coact to control at an optimum concentration each of the plant nutrients. The slow release fertilizer composition comprises the plant primary nutrients nitrogen, phosphorous, calcium, sulfur, magnesium, and potassium and the plant micronutrients iron, manganese, zinc, copper and boron. A single application of the fertilizer composition of the present invention provides sufficient plant nutrients for a full growing season or one or more growing seasons.