摘要:
This disclosure relates to cold cranking simulator viscosity (“CCSV”) boosting base stocks that allow flexibility for engine oil formulations to meet both high and low temperature viscosity requirements while maximizing fuel efficiency. The CCSV-boosting base stocks can include C28-C60 hydrocarbon materials, linear esters, tertiary amides, dialkyl carbonates, aromatic alcohols, and aromatic ethers. This disclosure also relates to lubricating oil formulations containing the CCSV-boosting base stocks, and a method for determining the CCSV-boosting efficacy of a base stock.
摘要:
A carbon dioxide/co-fluid mixture is provided for use in a refrigeration cycle in which the carbon dioxide is alternately absorbed and desorbed from the co-fluid. Suitable co-fluids are selected from the class of alkoxylated carboxylic amides, wherein the amides are cyclic or non-cyclic. It has been discovered that N-2,5,8,11-tetraoxadodecyl-2-pyrrolidinone and its homologs exhibit an advantageous property of a high rate of desorption at lower temperatures.
摘要:
A carbon dioxide/co-fluid mixture is provided for use in a refrigeration cycle in which the carbon dioxide is alternately absorbed and desorbed from the co-fluid. Suitable co-fluids are selected from the class of alkoxylated carboxylic amides, wherein the amides are cyclic or non-cyclic. It has been discovered that N-2,5,8,11-tetraoxadodecyl-2-pyrrolidinone and its homologs exhibit an advantageous property of a high rate of desorption at lower temperatures.
摘要:
Provided is a raw material powder for powder metallurgy, capable of preventing stains, surface defects and decarburization of a sintered body, improving strength and density thereof. The raw material powder for powder metallurgy is for use in the production of a sintered body that is sintered at a temperature of not lower than 500° C., composed of a mixture of a metal powder and a lubricant, in which the lubricant is melamine cyanurate or terephthalic acid. Alternatively, the raw material powder for powder metallurgy is for use in the production of a sintered body that is sintered at a temperature of not lower than 500° C., composed of a mixture of a metal powder, a first lubricant and a second lubricant, in which the first lubricant is melamine cyanurate or terephthalic acid, while the second lubricant is preferably erucic acid amide or stearic acid amide.
摘要:
The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, Cl, Br, I, CF3, NO2 and N(CH3)3+, Y represents H or CH3, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2+U−, U− being a soluble anion, and B represents an unsubstituted C1-C20 linear aliphatic alkyl group, or a C1-C20 linear aliphatic alkyl group partially or completely substituted with F, and a method of preparing this layer and its use as an epilame or barrier film.
摘要:
The present invention relates to an additive concentrate comprising a friction modifier, a corrosion inhibitor, and an oil of lubricating viscosity. The invention further provides a method for lubricating a transmission using the additive concentrate.
摘要:
An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and a particulate composite lubricant, the composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. A particulate composite lubricant and a method for producing the same also are provided.
摘要:
A corrosion protection agent for functional fluids is disclosed, comprising 5 to 80 wt. % of at least one fatty acid alkanolamide, based on saturated or unsaturated fatty acids with 10 to 20 carbon atoms, 5 to 80 wt. % of at least one alcohol with 2 to 14 carbon atoms and 5 to 80 wt. % of at least one aromatic moncarboxylic acid or an aliphatic dicarboxylic acid with 10 to 12 carbon atoms, whereby the sum of said components amounts to 100 wt. % and the wt. % is based on the weight of the corrosion protection agent, a water-miscible concentrate, containing said corrosion protection agent, for functional fluids based on water and use thereof for the production of lubricants, abrasive agents, hydraulic fluids and cooling lubricants for metal working and metal cutting.
摘要:
An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and a particulate composite lubricant, the composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. A particulate composite lubricant and a method for producing the same also are provided.
摘要:
A corrosion protection agent for functional fluids is disclosed, comprising 5 to 80 wt. % of at least one fatty acid alkanolamide, based on saturated or unsaturated fatty acids with 10 to 20 carbon atoms, 5 to 80 wt. % of at least one alcohol with 2 to 14 carbon atoms and 5 to 80 wt. % of at least one aromatic moncarboxylic acid or an aliphatic dicarboxylic acid with 10 to 12 carbon atoms, whereby the sum of said components amounts to 100 wt. % and the wt. % is based on the weight of the corrosion protection agent, a water-miscible concentrate, containing said corrosion protection agent, for functional fluids based on water and use thereof for the production of lubricants, abrasive agents, hydraulic fluids and cooling lubricants for metal working and metal cutting.