Abstract:
Inhibitor gegen die Korrosion von CO 2 und H 2 S in Wasser-in-Öl-Emulsionen, bestehend aus einem Reaktionsprodukt aus
A) Imidazolinen bzw. deren Salzen der Formel oder Vorprodukten der Formel la in der bedeuten: R 1 =C 6 - bis C 22 -Alkyl oder Alkenyl R 2 = C 4 - bis C 16 -Alkyl, und B) elementarem Schwefel, erhalten durch Umsetzen von A) und B) bei 100 bis 200°C innerhalb 1 bis 3 Stunden in einem Gewichtsverhältnis A) : B) = 100: 1 bis 2: 1.
Abstract:
A cutting or grinding oil composition comprising (A) a base oil and (B) at least one compound selected from the group consisting of dibasic acids having 2 to 6 carbon atoms, tribasic acids having 3 to 6 carbon atoms, and ester derivatives of these acids; and a cutting or grinding oil composition comprising component (A) described above, component (B) described above, (C) a compound containing sulfur, and/or (D) at least one compound selected from the group consisting of perbasic alkali metal sulfonates and perbasic alkaline earth metal sulfonates are disclosed. By using the oil composition, increase in working efficiency, such as suppressed wear of working tools and superior precision of a finished surface, can be achieved.
Abstract:
The shortcomings inherent in prior art coupling fluids are eliminated by combining 1) a polyorganosiloxane fluid with 2) sulfur or certain sulfur compounds and 3) at least one cyclic organosiloxane. These three ingredients form a suitable coupling fluid for use in viscous coupling systems.
Abstract:
A cutting or grinding oil composition comprising (A) a base oil and (B) at least one compound selected from the group consisting of dibasic acids having 2 to 6 carbon atoms, tribasic acids having 3 to 6 carbon atoms, and ester derivatives of these acids; and a cutting or grinding oil composition comprising component (A) described above, component (B) described above, (C) a compound containing sulfur, and/or (D) at least one compound selected from the group consisting of perbasic alkali metal sulfonates and perbasic alkaline earth metal sulfonates are disclosed. By using the oil composition, increase in working efficiency, such as suppressed wear of working tools and superior precision of a finished surface, can be achieved.
Abstract:
A graphite-free lubricating oil which comprises a base oil having dispersed therein 10 to 40% by weight of a carbohydrate and/or a derivative thereof whose particle size ranges from 10 to 150 µm, 2 to 20% by weight of a film-boosting agent and 0.1 to 20% by weight of a dispersant. Moreover, the lubricating oil is free of black-colored substances such as graphite. Therefore, the oil permits the improvement of working surroundings and exhibits excellent properties such as formability through forging almost comparable to or even greater than that of the commercially available graphite-in-oil type lubricating oils. The lubricating oil can be used instead of the graphite-containing lubricating oils for warm forging, hot forging, rolling, tube-manufacturing, drawing and extrusion in place of the graphite-containing lubricating oils and ensures the improvement in the working surroundings and excellent lubricity.
Abstract:
A carrier-free pulverulent metalworking lubricant composition. In one form, the composition contains from 2 to 30% by weight sulfur and at least one component having adhesive properties at forging temperatures, the composition being formed by a method comprising the steps of: (a) forming a dry mixture of said particulate lubricant components, and (b) agglomerating said admixture to form agglomerated particles. The application of the composition as a metal working lubricant significantly reduces smoke and oily waste generation in hot forging operations by eliminating the use of oils or volatile organic compounds as carriers, while providing acceptable performance, cleanability and sprayability.
Abstract:
A process for producing a mixture of sulfides of alkaline earth metal salts of an alkylhydroxybenzoic acid and an alkylphenol comprising the steps of: reacting a mixture of a phenol, a dihydric alcohol and an alkaline earth metal oxide and/or hydroxide (hereinafter referred to as an alkaline earth metal reagent) in an amount of no more than 0.99 gram equivalents per gram equivalent of said phenol; distilling off water and the dihydric alcohol until the amount of the dihydric alcohol becomes no more than 0.6 moles per mole of the alkaline earth metal reagent; reacting the resulting distillation residue with carbon dioxide; and reacting the resulting product with elemental sulfur in an amount of 0.1 - 4.0 moles per mole of the alkaline earth metal reagent.
Abstract:
A reaction product of an olefin with sulfur (with or without added H₂S), phosphorus pentasulfide and phosphorus pentoxide provides an effective antiwear additive agent for lubricant oils. The reaction may also include an aliphatic amine and/or an alkylene oxide. The lubricant composition comprises a major proportion of an oil of lubricating viscosity or grease prepared therefrom and a minor antiwear amount of said reaction product.
Abstract:
A process for producing a mixture of sulfides of alkaline earth metal salts of an alkylhydroxybenzoic acid and an alkylphenol comprising the steps of: reacting a mixture of a phenol, a dihydric alcohol and an alkaline earth metal oxide and/or hydroxide (hereinafter referred to as an alkaline earth metal reagent) in an amount of no more than 0.99 gram equivalents per gram equivalent of said phenol; distilling off water and the dihydric alcohol until the amount of the dihydric alcohol becomes no more than 0.6 moles per mole of the alkaline earth metal reagent; reacting the resulting distillation residue with carbon dioxide; and reacting the resulting product with elemental sulfur in an amount of 0.1 - 4.0 moles per mole of the alkaline earth metal reagent.
Abstract:
An improved transparent lubricating oil composition, e.g. useful as a high severity metal cutting oil, and a method of metal working using said composition, the composition comprising a major amount of oil of lubricating viscosity; a minor, effective amount of at least one sulfur-containing compound; and a minor effective amount of elemental sulfur; both the sulfur-containing compound and the sulfur being present in amounts to be soluble in the composition and the combination of sulfur-containing compound and elemental sulfur being present in an amount effective to improve the extreme pressure properties of the composition.