vaporize the sulfur when the distillate runs in a steady stream which must be a very thin stream it is run into a pot of ice water which is rotating at forty five rpm it is collected until the stream becomes unsteady which indicates that it will soon break the sulfur forms a rubbery mass of strings in the ice water it is removed from the ice water and shook to remove most of the water the remaining water is blown off with compressed air the rubbery polymeric sulfur is then blended with an equal amount of natural rubber the compatible diluent on a two roll mill an excellent uniform blend of the polysulfur and the rubber is obtained the procedure of example 1 is repeated except in place of 1 part bromine 0 8 parts of bromine and 0 2 parts of iodine are used an excellent uniform blend of the polysulfur and the rubber is obtained the procedure of example 2 is repeated but the distillate of polysulfur is run directly into the nip of a cooled two roll rubber mill upon which the rubber the compatible polymer has already been banded and has formed a rolling nip an excellent uniform blend of the polysulfur and the rubber is obtained one hundred parts of sulfur and 0 25 parts of bromine are melted in a beaker and heated to a point e g 200 degrees c above the maximum viscosity of the sulfur to form a liquid the liquid is slowly poured into a rotating ice water bath to form rubbery polysulfur which after isolation is blended with rubber the compatible diluent as in example 1 an excellent uniform blend of the polysulfur and the.