摘要:
The addition to diesel or jet fuel of macrocyclic polyamines, especially those derived from PIBSA, or hydrocarbyl polyamines reduces particle emission, especially in association with organic nitrate cetane improvers.
摘要:
A phosphorous- and sulfur-containing additive and its use to impart anti-wear and/or antioxidant properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, and (2) a phosphorous-containing reactant, such as tributyl phosphite. The reaction is carried out under reduced pressure conditions (e.g., -40 KPa to -100 KPa) to limit the amount of thioether species in said additive to less than about 45 mole %.
摘要:
Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4,8-dichloro-6-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and their dehydrochlorinated analogs, when esterified with an alcohol, preferably a polyol, such as pentaerythritol, polypentaerythritol or a polyalkylene glycol with or without acid catalysts and/or metal template reagents yield thio-bis-(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) which can be characterized in part, as macrocyclic and/or macrocyclic-like structures, are useful as stable additives in lubricating compositions, e.g. as varnish inhibiting dispersants for lubricating oils and fuels.
摘要:
There are disclosed macrocyclic and polycyclic polyamine lubricating oil additives formed by cyclodehydration of reaction products of hydrocarbon substituted succinic anhydrides or carboxylic acids with poly 3-amino propyl compounds or by acylation of macrocyclic polyamines and polycyclic polyamines with hydrocarbon substituted succinic anhydride or carboxylic acids. These compounds are useful as dispersants and dispersants-V.I. improvers in both gasoline and diesel engine lubricating oil compositions and are also useful fuel additives.
摘要:
Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4, 8-dichloro-6-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and especially their dehydrochlorinated analogs, when treated with an amine preferably polyalkylene polyamines such as tetraethylene pentamine, directly or in the presence of a metal template reagent, yield aminated thio-bis-(alkyl lactone acid) and thio-bis-(hydrocarbyl diacid) materials or their metal complexes which can be characterized in part, as macrocyclic and/or macrocyclic-like amide and/or imide structures, are useful as stable additives in lubricating compositions, e.g., as varnish inhibiting dispersants and/or inhibitors for lubricating oils and fuels.
摘要:
The present invention provides certain metal (e.g., Ca or Mg) ester salt derivatives capable of exhibiting friction modification, oxidation inhibition, and corrosion inhibition properties in power transmitting fluids such as automatic transmission fluids. These salts are derived from mono or diesters prepared by the reaction of an alkanol (e.g., thio-bis-ethanol) and a hydrocarbon substituted succinic acid or anhydride, such as octadecenyl succinic anhydride.
摘要:
A bis-oxazoline of the formula: ##STR1## wherein R represents an alkyl group of 6 to 50 carbons and X is selected from the group containing of an alkyl or hydroxyalkyl group and at least one of the X substituents being a hydroxy alkyl group of the structure --(CH.sub.2).sub.n OH where n is 1 to 3, which is useful in improving the lubricity of aqueous drilling muds.
摘要:
Thio-bis-(hydrocarbon-bisoxazolines) which are the reaction products of thio-bis-(hydrocarbon substituted dicarboxylic acid material), for example, thio-bis-(polyisobutenyl succinic anhydride), with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl) amino-methane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-corrosion agents for fuels.
摘要:
Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful aditives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-rust agents for gasoline.
摘要:
Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-rust agents for gasoline.