Sulfur vulcanization a reaction with low levels of unsaturated organic linkers (e.g. 1,3‐diisopropenylbenzene). This process is called inverse vulcanisation and produces polymers where sulfur is the main component. It is not currently of commercial importance but had been investigated as a means of producing polymers for lithium–sulfur batterys and for creating water filters with a high affinity for mercury. The curing of rubber has been carried out since prehistoric times. The name of the first major civilization in Guatemala and Mexico, the Olmec, means 'rubber people' in the Aztec language. Ancient Mesoamericans, spanning from ancient Olmecs to Aztecs, extracted latex from "Castilla
Union Sulphur Company Union Sulphur Company The Union Sulphur Company was an American sulfur mining corporation founded in 1896 by the famous inventor Herman Frasch. It utilized the Frasch Process to extract previously inaccessible sulfur deposits located beneath swampland in Louisiana. The Union Sulphur Company dominated the world sulfur market until its patents expired in 1908. Its success led to the development of the present-day city of Sulphur, Louisiana. After its sulfur patents expired, the company transitioned into oil and natural gas production and was renamed the Union Sulphur & Oil Company and later the Union Oil & Gas Corporation. During World War