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AssigneesDow Quimica de Colombia S.A., PBBPolisur S.R.L., Dow Global Technologies LLC
InventorsMaximiliano ZANETTI, Miguel Molano Niampira, Jorge C. Gomes
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Embodiments disclosed herein include multilayer films that have at least two layers. More particularly, disclosed in embodiments herein are multilayer films that include at least a first layer and a second layer, wherein the first layer includes at least one polyethylene polymer, wherein the second layer includes at least one water-soluble polymer, wherein the second layer is insoluble in water at a temperature of less than 20° C., wherein the second layer is soluble in water at a temperature of 20° C. or greater, and wherein the first layer has one or more openings through the first layer to expose the second layer. Also disclosed herein are methods of using such multilayer films for extracting metal from metal ore.
A multilayer film comprising at least a first layer and a second layer, wherein the first layer comprises at least one polyethylene polymer, wherein the second layer comprises at least one water-soluble polymer, wherein the second layer is insoluble in water at a temperature of less than 20° C., wherein the second layer is soluble in water at a temperature of 20° C. or greater, and wherein the first layer has one or more openings through the first layer to expose the second layer.
A method of extracting metal from metal ore, the method comprising:
Dependencies are inferred from the claim text.