摘要:
Compositions including a vegetable- or animal-derived oil, such as fatty acid alkyl esters, are stabilized against oxidation using an oxygenated aminophenol antioxidant. The aminophenol includes one or two carbon-containing group(s) including a hydroxyl group and/or ether group separated from the N atom by one or more carbon atoms. The oxygenated aminophenol antioxidants effective at controlling oxidation at moderate and even low amounts, useful in a variety of different oil and methyl ester fatty acid preparations, and were effective at elevated temperatures, and performed significantly better than convention antioxidants.
摘要:
The invention relates to the use of quaternized nitrogen compounds as a fuel and lubricant additive or kerosene additive, such as in particular as a detergent additive, for decreasing or preventing deposits in the injection systems of direct-injection diesel engines, in particular in common rail injection systems, for decreasing the fuel consumption of direct-injection diesel engines, in particular of diesel engines having common rail injection systems, and for minimizing the power loss in direct-injection diesel engines, in particular in diesel engines having common rail injection systems; the invention further relates to the use as an additive for petrol, in particular for operation of DISI engines.
摘要:
A dispersant includes the reaction product of an amine and at least one equivalent of glycidyl ether where the amine is selected from a group consisting of aminoethylpiperazine, bis(2-(piperazin-1-yl)ethyl)amine, 4,4′-methylenebiscyclohexylamine, m-xylenediamine, diethylenetriamine, and triethylenetetramine and where the glycidyl ether has the structure (A), where R is selected from aromatic carbon chains, non-aromatic carbon chains and polyalkylene glycol groups. The dispersant is useful in a lubricant with a base oil for increasing soot dispersibility of the lubricant.
摘要:
A lubricating oil for improving the fuel economy of internal combustion engines is disclosed comprising a major amount of a lubricating oil base stock and a minor amount of an additive package which comprises in combination a molybdenum dithiocarbamate friction modifier, a mixture of calcium and magnesium salicylate and magnesium sulfonate detergent, and alkylated (alkoxy) amine. In addition the engine lubricant can include other typical engine oil lubricant additives including dispersants, anti-foaming agents, anti-oxidants, anti-wear additives, demulsifiers, etc.
摘要:
A lubricating oil, grease or fuel composition contains an antioxidant amount of a Mannich base reaction product of an N-hydrocarbyl-substituted-phenylenediamine or an N,N'-dihydrocarbyl-substituted phenylenediamine such as N,N'-di-sec-butyl-para-phenylenediamine, an aldehyde or ketone and a hindered phenol such as 2,6-di-tert-butylphenol.
摘要:
A bactericide is added to conventional water-soluble cutting fluids to suppress deterioration by microorganisms. Such fluids are however accompanied by the drawbacks that the bactericide has a narrow antibacterial spectrum and moreover its effects last a short time. It is the object of the present invention to offers water-soluble cutting fluids which remain resistant to a wide variety of microorganisms for a long time. The present invention therefore offers water-soluble cutting fluids to which has been added a specific amine selected from amines known to date.
摘要:
A class of N,N',N"-trisubstituted bis-(p-aminobenzyl) anilines are found to be effective antioxidants in a broad spectrum of petroleum and petroleum related products. N,N',N"-Tri(arylmethyl) and tri(heteroarylmethyl) substituted materials of the parent compound are especially effective at concentrations as low as about 0.0005 percent by weight.
摘要:
N,N'-disubstituted 2,4'-diaminodiphenyl ethers are a potent antioxidant for petroleum products and petroleum-related products. In particular, the N,N'-dibenzyl derivative and other aromatic and hetero-aromatic analogs of the dibenzyl derivatives exhibit desirable antioxidant properties at levels as low as about 0.05% by weight.
摘要:
Polyamine ether compounds useful as intermediates for producing additives for lubricating oils are provided as well as a process for the production of said compounds.