Sulfur vulcanization had found hundreds of applications for his additive. Thus, the science of accelerators and retarders was born. An accelerator speeds up the cure reaction, while a retarder delays it. A typical retarder is cyclohexylthiophthalimide. In the subsequent century chemists developed other accelerators and ultra-accelerators, which are used in the manufacture of most modern rubber goods. Sulfur vulcanization Sulfur vulcanization or sulfur vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur or other equivalent curatives or accelerators. Sulfur forms cross-links (bridges) between sections of polymer chain which results in
Union Sulphur Company the Supreme Court, which declined to review the Third Circuit opinion. The competitors were free to use the Frasch Process. The Union Sulphur Company continued to extract sulfur, averaging over 200,000 tons per year from 1905 to 1911 and eventually producing a total of almost 9.5 million tons. Sulfur has many industrial uses, including as sulfuric acid and in the manufacture of explosives, among others. The Union Sulphur Company, as the primary source of sulfur in the U.S. before and during World War I, was critical to the U.S. war effort. As the legal battle over the expiration of its