A method for the production of not soluble granulated sulphur with improved fluidity, a vulcanizing agent and sulfur containing rubber compositions.

摘要

An organic solvent alone or together with a rubber process oil is added to a powder of insoluble sulfur, the mixture is granulated, and the granulation product is heated at a temperature lower than 120°C to evaporate the organic solvent, whereby a granular insoluble sulfur having an improved flowability is obtained. This granular insoluble sulfur is valuable as a rubber-vulcanizing agent.