Abstract:
The invention is a liquid composition of matter useful as a metalworking lubricant. The composition comprises a primary lubricity component, such as a polyether or polyether ester, and dissolved salts of carboxylic acids. The composition preferably contains not more than 0.2 percent of any element except carbon, hydrogen, oxygen, alkaline earth metals, alkali metals, inorganically bonded halogens, inorganically bonded nitrogen, inorganically bonded sulfur, and inorganically bonded phosphorus.
Abstract:
The invention concerns a lubricating composition for machining metals by removing cuttings, containing 0.01 to 0.5 wt. %, relative to the total amount of said ready-for-use lubricant, elemental sulphur having an average particle size ranging between 10 and 1500 nm, and concentrates of said lubricant.
Abstract:
A highly effective solid cold working lubricant may be deposited on a metal surface from an aqueous solution/dispersion that contains ethoxylated alcohols with at least 18 carbon atoms per alcohol and lithium, calcium, and/or sodium salts of fatty acids. Optional preferred ingredients include inorganic boron containing compounds, ethoxylated castor oil, ionomers, and a corrosion inhibitor that includes azoles. No prior conversion coating, such as is generally used under conventional organic soap lubricants, is needed with this type of solid film.
Abstract:
The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can impart a relatively high pH and corrosion resistant properties to the grease.
Abstract:
The invention concerns a lubricating composition, in particular for swaging, consisting of a suspension in water of a mixture of phospholipids and an organic or mineral basic compound. For example, the composition contains 80 wt.% water, 10 wt.% phospholipids brought in the form of soja bean lecithin, and 10 wt.% of calcium hydroxide or stearylamine as basic compound. Among other advantages the lubricant can be eliminated by means of an aqueous solvent, and is easily biodegradable.
Abstract:
The invention concerns an alkaline reagent for use in stabilising motor oil and consisting of a tin-bearing component and a metal hydroxide. A novel feature is the fact that tin ore refinement products are used as the tin-bearing component, and the metal hydroxide used is a hydroxide of an alkaline earth metal and/or the hydroxide of an alkali metal, the respective proportions being as follows: tin ore refinement products (calculated for SnO2) 3-90 wt.%; metal hydroxide 10-97 wt.%.
Abstract:
The invention concerns the use of at least substantially water-insoluble dialkyl ethers of natural or synthetic mono- and/or polyhydric alcohols, the ethers being liquid at working temperatures, as the oil phase in agents for treating metal surfaces and in cooling lubricants. The invention also concerns agents containing at least such dialkyl ethers, corrosion inhibitors and emulsifiers. These dialkyl ethers are intended for use as mineral-oil substitutes.
Abstract:
Amine-free cooling lubricants contain as essential component sets of anticorrosive substances, besides the usual base oils, emulsifiers and solubilizers. These sets of anticorrosive substances consist of a mixture of dimeric fatty acids and one or several carboxylic acids. The latter are selected among the apliphatic and aromatic carboxylic acids. Alkali metal, magnesium and/or calcium salts of said acids may be used in a similar manner. These amine-free cooling lubricants have an anticorrosive effect comparable to that of alkanolamine-containing cooling lubricants.
Abstract:
An effective lubricant for cold working of metals is provided by a combination of a water soluble copolymer of styrene with maleic anhydride, maleic acid, and/or an ammonium or substituted ammonium maleate salt with an ethoxylated alcohol, preferably an alcohol with at least 40 carbon atoms before ethoxylation and about 50 % of its mass in the polyoxyethylene block in the molecule.
Abstract:
Stress cracking in poly(alkylene terephthalate) articles of manufacture is inhibited by applying to the article a stress crack inhibitor which contains an amine having at least 6 carbon atoms. In a preferred embodiment, the stress crack inhibitor is applied to the article in the form of an aqueous fatty acid-based lubricant.