Abstract:
A stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to an oxidative environment is prepared without forming undesirable color bodies therein by contacting the lubricating oil stock with a small amount of elemental sulfur of from about 0.1 to about 0.5 percent by weight at a contact temperature of from about 25.degree.C to about 70.degree.C and, thereafter, removing any unreacted sulfur therefrom.
Abstract:
A SOLID LUBRICANT IS FORM OF A MIXTURE COMPRISING ONE PART BY WEIGHT OF HEXAGONAL BORON NITRIDE TO THREE PARTS BY WEIGHT OF SULFUR. A FINELY DIVIDED POWDER OF THE BORON NITRIDE IS DISPERSED IN LIQUID SULFUR BETWEEN THE MELTING POINT AND 160*C., OR BETWEEN 360*C, AND THE BOILING POINT OF SULFUR. THE MIXTURE, IN THE LIQUID OF PASTY STATE, CAN BE APPLIED TO A MATERIAL WITH A SURFACE HAVING RETENTIVE PROPERTIES, AND ALLOWED TO COOL TO FORM LUBRICATING LAYER.
Abstract:
A TWO-PART SEALING COMPOSITION; ONE PART COMPRISING 100 PARTS OF CROSS-LINKING ELASTOMER, 50-200 PARTS OF AN OIL INCORPORATED THEREIN IN THE FORM OF A GEL, 3003,000 PARTS OF INERT FILLER, 2-8 PARTS OF ANTI-OXIDANT, AND 0.5-30 PARTS OF A CURATIVE SYSTEM FOR SAID ELASTOMER; THE SECOND PART COMPRISING 100 PARTS OF CROSS-LINKING ELASTOMER, 50-200 PARTS OF AN OIL INCORPORATED THEREIN IN THE FORM OF A GEL, 300-3,000 PARTS OF INERT FILLER, 2-8 PARTS OF ANTI-OXIDANT, AND 1.5-30 PARTS OF A ROOM TEMPERATURE ACCELERATOR. THE SEALING COMPOSITION MAY BE ADMIXED PRIOR TO USE. THE INVENTION ALSO INCLUDES A METHOD OF COMPOUNDING OIL WITH AN ELASTOMER COMPRISING PROVIDING THE OIL IN THE FORM OF A GEL AND THEN COMPOUNDING SAID GEL WITH SAID ELASTOMER.
Abstract:
A non-emulsifiable lubricant comprises 0.01-50 wt. per cent of an alkaline earth metal salt of a C1-C4 carboxylic acid, 0.1-30 wt. per cent of a sulphur containing material selected from sulphur, alkyl sulphides and polysulphides, aromatic hydrocarbyl sulphides and poly-sulphides, alkyl substituted aromatic hydrocarbyl sulphides and polysulphides and sulphurized oils (other than mineral oils) and fats, the balance being a lubricating oil. The composition may also contain a dispersion stabilizer e.g. C4-C24 fatty acids and N-acyl sarcosines. The lubricating oil may be mineral oil or sulphurized mineral oil.