Abstract: Molybdenum compositions suitable for improving the properties of lubricants and fuels comprise the reaction product of molybdenum and a polyamine Mannich reaction product, a polyamine hydrocarbyl-substituted dicarboxylic acid compound reaction product, and the oxidized and/or sulfurized reaction products thereof.
Abstract: Hydrocracked lubricating oils are effectively stabilized against deterioration caused by light by the inclusion of at least one of certain dihydroxy components. Such component, e.g., 3,5-di-tert-butyl catechol and 4,6-di-tert-butyl resorcinol, provide outstanding inhibition to sunlight deterioration.
Abstract: Aqueous-base compositions are disclosed for the lubrication of the piston and the cylinder liner of Diesel engines, particularly large engines, said compositions essentially comprising one or more water soluble anti-acid neutralizers, a water soluble organic fluid having a high boiling point temperature and one or more water-soluble detergents.Tests on large engines have shown that it is possible to lubricate the piston and the cylinder liner with an aqueous base fluid without using any crude petroleum derivative.
Abstract: The anti-wear properties of lubricating oil compositions containing overbased calcium sulfonate are improved when a complex of a zinc salt of a cyclic hydrocarbyl dithiophosphoric acid of 2,4-pentanediol and a succinimide is added to the oil. Oil compositions containing this combination are useful as crankcase lubricants.
Abstract: New compounds made by first reacting an amine, an aldehyde and a mercaptan and reacting the product thus obtained with a boron compound are provided. The invention also provides lubricant and liquid fuel compositions containing such compounds.
Abstract: A tape guide member is disclosed which is prepared from a mixture of engineering plastics, carbon fibers, and an ester of a higher fatty acid, and a polyhydric alcohol. The members may be suitably used as tape guides of video tape cassettes, audio tape cassettes, and memory tape cassettes. Use of the present tape guide results in a lower degree of dropouts after repeated tape running.
Abstract: A Mannich condensation product of an amorphous, oil soluble olefin/carbonyl polymer, amine and formaldehyde yielding reactant wherein the carbonyl groups are provided by at least one member selected from the group consisting of carbon monoxide and vinyl alkyl ketone and lube oil compositions comprising said polymers.
Abstract: The invention relates to lubricant compositions containing(a) a mineral and/or synthetic base oil,(b) a compound of the formula IA--(S).sub.n --G (I)wherein n is preferably 2 and A and G are the same or different and represent either a radical ##STR1## wherein R.sup.1 and R.sup.2 may be methyl, or are a nitrogen-containing 5- to 7-membered heterocyclic radical such as ##STR2## and (c) optionally further additives.
Abstract: In a method of preparing coal in particulate form for charging coke ovens, the particulate coal is initially treated with a binding agent selected from carbo-pitch, residues of coal oil refining and oil refining residues; particulate coal so treated is mixed with 0.1 to 0.3% of light oil and subsequently agglomerated before feeding into coke ovens. Non-self-fluxing coal may be treated by this method and mixed with granulate self-fluxing coal to form a coke oven charge.
Abstract: The new polyethers obtainable by polymerization of an 1,2-epoxyalkane with 8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxyl compound of the formulaH-OR.sup.1in which R.sup.1 denotes hydrogen, an alkyl radical having 1 to 24 carbon atoms or a hydroxyalkyl radical having 2 to 40 carbon atoms are disclosed together with their use as lubricants.
April 22, 1982
Date of Patent:
November 6, 1984
Karl-Heinz Hentschel, Rolf Dhein, Siegfried Kussi, Hans Winter, Herbert Vojacek
Abstract: The spreadability of marine diesel cylinder oils is improved by the incorporation therein of a spreadability improving amount of a polyalkoxylated phenoxy compound having the formula: ##STR1## wherein R is an aliphatic hydrocarbyl group having from 5 to 70 carbon atoms and n ranges from 14 to 30.
Abstract: A lubricating oil composition having particularly improved friction reducing properties which comprises an ester of a polycarboxylic acid with a glycol or glycercol and a selected metal dithiocarbamate and contains a relatively low level of phosphorus.
Abstract: A process for the production of an aqueous lubricant composition free of oil including water and at least one metallic carboxylate, wherein the anionic is at least one saturated linear organic radical containing at least 12 carbon atoms and the cationic is at least one bivalent or trivalent metal having an electro-chemical oxidation-reduction potential greater than -0.7 volts. The process includes mixing of two mother solutions. The first mother solution is an aqueous solution of at least one alkali metal carboxylate soluble in water wherein the anionic is at least one saturated linear organic radical with at least 12 carbon atoms. The second mother solution is an aqueous solution of at least one metallic salt whereof the anionic is selected from the group consisting of hydroxide, chloride, sulphate, nitrate or phosphate ions and whereof the cationic is at least one bivalent or trivalent metal having an electro-chemical oxidation reduction potential greater than -0.70 volts.
July 21, 1983
Date of Patent:
October 23, 1984
Centre Stephanois De Recherches Mecaniques Hydromecanique Et Frottement Zone Industrielle
Abstract: There are applied gold containing preparations as intermediate layers for facing fired on alloys with ceramic compositions in the dental art. These gold preparations should improve the adhesiveness, form a structured surface and make possible a saving in the consumption of gold. This is accomplished with preparations that contain 60 to 95% gold powder, at least 50% of which are platelet shaped particles, 5-40% of a binder and in a given case up to 20 of a powder as an adhesive which is made of metals and/or non-metals.
August 17, 1981
Date of Patent:
August 28, 1984
Jurgen Hausselt, Harry Schiwiora, Manfred Stumke, Klaus Lutz