| http://www.w3.org/ns/prov#value | - epared by (1) dry milling an elastomer which is a copolymer of ethylene and at least one other monomer including a diene with a reinforcing carbon black so that the weight ratio of dispersed carbon black to elastomer is about 25:75 to 50:50; (2) adding an organic solvent for the elastomer and mixing to form a liquid composition, (3) mixing the liquid composition in a high-shear mixer with water co
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