Borated phosphorus-containing compounds and lubricant compositions containing same
AssigneeMobil Oil Corporation
InventorsAndrew G. Horodysky, Phillip S. Landis
Life of this patent
Estimating the term…
Abstract
Certain diol-phosphorus oxyhalide-boron compound reaction products have been found to have antioxidant and antifriction properties and to hinder the corrosion of copper surfaces.
Claims27
A product of reaction made by reacting a vicinal diol, a phosphorus oxyhalide and a boron compound, the vicinal diol being reacted with the phosphorus oxyhalide at a temperature between about 30.degree. C. to about 220.degree. C. in sufficient quantity so that about 5% to about 95% of the diol hydroxy functions are reacted, and the product thereby obtained being reacted with the boron compound at a temperature between about 80.degree. C. and about 260.degree. C. in sufficient quantity so that between about 5% and about 100% of the unreacted hydroxy functions are reacted, or the vicinal diol being reacted with the boron compound at a temperature between about 80.degree. C. and about 260.degree. C. in sufficient quantity so that about 5% to about 95% of the diol hydroxy functions are reacted, and the product thereby obtained being reacted with the phosphorus oxyhalide at a temperature between about 30.degree. C. and about 220.degree. C. in sufficient quantity so that about 5% to about 100% of the unreacted hydroxy functions are reacted, all reactions being conducted at a pressure between about atmospheric and less than atmospheric pressure.
The product of caim 2 wherein the diol is selected from the group consisting of 1,2-dodecanediol, 1,2-tetradecanediol,1,2-pentadecanediol, 1,2-hexadecanediol, 1,2-heptadecanediol, 1,2-octadecane diol, mixed 1,2-C.sub.15 -C.sub.18 alkanediols and mixtures of any of the named diols.
A lubricant comprising a major amount of a lubricant selected from the group consisting of (1) a mineral oil, (2) a synthetic oil or a mixture of synthetic oils, (3) a mixture of (1) and (2) and (4) a grease from any of (1), (2) and (3) and an antifriction amount of a product of reaction made by reacting a vicinal diol, a phosphorus oxyhalide and a boron compound, the vicinal diol being reacted with the phosphorus oxyhalide at a temperature between about 30.degree. C. to about 220.degree. C. in sufficient quantity so that about 5% to about 95% of the diol hydroxy functions are reacted, and the product thereby obtained being reacted with the boron compound at a temperature between about 80.degree. C. and about 260.degree. C. in sufficient quantity so that between about 5% and about 100% of the unreacted hydroxy functions are reacted, or the vicinal diol being reacted with the boron compound at a temperature between about 80.degree. C. and about 260.degree. C. in sufficient quantity so that about 5% to about 95% of the diol hydroxy functions are reacted, and the product thereby obtained being reacted with the phosphorus oxyhalide at a temperature between about 30.degree. C. and about 220.degree. C. in sufficient quantity so that about 5% to about 100% of the unreacted hydroxy functions are reacted, all reactions being conducted at a pressure between about atmospheric and less than atmospheric pressure.
Dependencies are inferred from the claim text.