Abstract:
Adducts of clay, especially of the smectite variety, most especially bentonite, are prepared with an effective amount of at least one activated mixed metal oxide or oxy-hydroxide (AHMMO) formed by dehydrating hydrotalcite or a mixture comprising magnesium oxide and aluminum oxide, or a crystalline mixed metal hydroxide conforming substantially to the formula LimDdT(OH)(m+2d+3+n.a)(A )a.xH2O where m is zero to one, D is a divalent metal, d is from zero to 4, T is a trivalent metal, A represents at least one anion or negative-valence radical of valence n, where n is 1 or more, (m+2d+3+n.a) is equal to or greater than 3, (m+d) is greater than zero, and xH2O represents excess waters of hydration. These adducts are useful, e.g., in drilling muds and in viscosity modification of a wide variety of fluids.
Abstract:
A rheologically controlled glass lubricant for hot metal working comprises a glass powder, a binder, a rheological agent, and a weetting and viscosity modifier. These materials may be dispersed in a carrier. The lubricant is made by mixing the constituent elements, milling the mixture, and stabilizing the milled mixture. The lubricant can be used in a forging operation by coating a metal part with the lubricant, heating the coated part, placing the coated heated part in a forge, and rapidly applying sufficient pressure to deform the coated metal part into a desired shape.
Abstract:
Composite bearings employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.
Abstract:
Die Erfindung schlägt als Beschichtungsmittel, die bei minimiertem Schmierstoffbedarf einerseits optimierte tribologische Bedingungen bei der Umformung von Stahlflachprodukten ermöglichen und andererseits im Hinblick auf ihre Wirkung auf die Umwelt unbedenklich sind, die Verwendung eines Sulfats aus der Gruppe „Aluminium-Sulfat, Ammonium-Sulfat, Eisen-Sulfat, Magnesium-Sulfat" vor. Mit diesem Beschichtungsmittel lässt sich ein Stahlbauteil durch Umformen eines Stahlflachprodukts in einer Umformmaschine dadurch herstellen, dass ein Stahlflachprodukt bereitgestellt wird, dass eine tribologisch wirksame Schicht auf mindestens einer der sich bei der Umformung berührenden Flächen des Stahlflachprodukts oder der zum Umformen eingesetzten Umformmaschine durch Beschichten mit einem Beschichtungsmittel aus der Gruppe „Aluminium-Sulfat, Ammonium-Sulfat, Eisen-Sulfat, Magnesium-Sulfat" hergestellt wird, dass das Stahlflachprodukt in das Umformwerkzeug eingelegt wird und dass das in die Umformmaschine eingelegte Stahlflachprodukt zu dem Bauteil umgeformt wird.
Abstract:
Disclosed are antiwear hydraulic fluid compositions comprising (a) a major amount of a base oil of lubricating viscosity and (b) a minor amount of at least one oil soluble detergent additive comprising a salt of an alkyl-substituted hydroxybenzoic acid or a sulfurized derivative thereof, wherein said salt is selected from the group consisting of alkali metal salts, alkaline earth metal salts, ammonium salts or substituted ammonium salts, and further wherein said antiwear hydraulic fluid compositions have a Carboxylate Index of greater than levels disclosed herein.
Abstract:
The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.
Abstract:
A succinated triglyceride oil derived from maleating triglyceride oil from a plant or land animal is described for use as an emulsifying agent for metalworking fluids. The metalworking fluid would comprise water; as an emulsifier this succinated triglyceride, optionally further reacted with water, Group IA and IIA metals, ammonium hydroxide, various amines, alkanolamines, alkoxylated alkanolamines, and polyamines to form a modified emulsifier; and optionally an oil and other additives.
Abstract:
This invention discloses novel catalyzed surface coating additives and catalyzed surface coating systems, which contain one or more catalysts, along with optional other ingredients, wherein the catalysts serve to effect in situ chemical bonding reactions in that the catalysts function to initiate, to promote, to accelerate, and/or to increase the formation and yield of persistent, solid, corrosion resistant, impact resistant, wear resistant, and/or non-stick surface coating films which may exhibit pigmentation and other aesthetic features, and may be designed to be environmentally benign.
Abstract:
The invention relates to a lubricant which contains solid particles that are dispersed in an organic matrix and have a mean particle size of between 1 and 500 nm. The lubricant preferably contains between 0.05 and 30 % by weight, in relation to the total formulation, of solid particles. The organic matrix is preferably selected from among native or mineral oils or fats, carboxylic acid salts with between 12 and 44 carbon atoms, waxes and organic polymers. The solid particles are preferably selected from the metal oxides, metal hydroxides, metal nitrides, metal carbides, metal phosphides, metal borides and metal sulfides and preferably have a hydrophobic coating. The above lubricants can be used to lubricate parts moving in relation to each other, as forming aid, cutting fluid and rolling oil emulsion.
Abstract:
This invention discloses novel catalyzed lubricant additives and catalyzed lubricant systems, which contain one or more catalysts, along with optional other additives, wherein the catalysts serve to accelerate the rate and increase the yield of the lubricant bonding reactions between the catalyzed lubricants and the wear surfaces being lubricated.