Patent ID: 8293817
Filing Date: 2012-10-23
Classification: C08C,C08L

Abstract:
1. A method for manufacturing natural rubber comprising: adding to a natural rubber latex at least one sulfonic acid selected from the group consisting of dodecyl sulfonic acid, dodecyl benzenesulfonic acid, and polyoxyethylene lauryl ether sulfate; and, thereafter, drying and removing moisture from the mixture of the natural rubber latex and the sulfonic acid by spraying the natural rubber latex mixture into an atmosphere of shock waves generated by pulse combustion, removing magnesium present in the natural rubber latex, wherein the treatment for removing the magnesium in the natural rubber latex comprises adding a water soluble compound, which produces a magnesium salt that has poor solubility in water with the magnesium, to the natural rubber latex, the water soluble compound being selected from the group consisting of oxalic acid, oxalic acid salts, carbonate, boric acid, boric acid metal salt, metal hydroxide, and phosphoric acid; wherein the oxalic acid salt, the carbonate, the boric acid metal salt, and the metal hydroxide do not comprise magnesium.