Reaction products of dialkyl phosphites with elemental sulfur, alkylene oxide compositions containing same, and their use in lubricant compositions

摘要

Dialkyl phosphites are reacted with sulfur. The resulting product is further reacted with an alkylene oxide to form a lube oil product. A better additive results when phosphorus pentoxide is then reacted with the resulting product and this product is further reacted with an amine to form an amine phosphate salt.