摘要:
Lubricants containing metal salts of hydrocarbyl-substituted carboxyalkylene-linked phenols, dihydrocarbyl esters of alkylene dicarboxylic acids, the alkylene group being substituted with a hydroxy group and an additional carboxylic acid group, or alkylene-linked polyaromatic molecules, the aromatic moieties whereof comprise at least one hydrocarbyl-substituted phenol and at least one carboxy phenol, where the hydrocarbyl groups are of sufficient length to provide oil solubility to the salt, exhibit good asphaltene suspension for marine diesel applications. Preferably the salts are overbased.
摘要:
Lubricants containing metal salts of hydrocarbyl-substituted carboxyalkylene-linked phenols, dihydrocarbyl esters of alkylene dicarboxylic acids, the alkylene group being substituted with a hydroxy group and an additional carboxylic acid group, or alkylene-linked polyaromatic molecules, the aromatic moieties whereof comprise at least one hydrocarbyl-substituted phenol and at least one carboxy phenol, where the hydrocarbyl groups are of sufficient length to provide oil solubility to the salt, exhibit good asphaltene suspension for marine diesel applications. Preferably the salts are overbased.
摘要:
This invention relates to metal salts of the general formula (I) Ay-My+, wherein M represents one or more metal ions, y is the total valence of all M and A represents one or more anion containing groups having a total of about y individual anionic moieties and each anion containing group is a group of formula (II), wherein T is selected from the group consisting of (V) or (VI) wherein each R5 is independently selected from O?- and OR6¿ wherein R6 is H or alkyl and each t is independently 0 or 1, wherein each Ar is independently an aromatic group of from 4 to about 30 carbon atoms having from 0 to 3 optional substituents selected from the group consisting of polyalkoxyalkyl, lower alkoxy, nitro, halo or combinations of two or more of said optional substituents, or an analog of such an aromatic group, wherein T is as hereinbefore defined, each R is independently alkyl, alkenyl or aryl having at least 8 carbon atoms, R1 is H or a hydrocarbyl group, R?2 and R3¿ are each independently H or a hydrocarbyl group, each m is independently an integer ranging from 1 to about 10, x ranges from 0 to about 8, and each Z is independently OH, (OR4)bOH or O- wherein each R4 is independently a divalent hydrocarbyl group and b is a number ranging from 1 to about 30 and c ranges from 0 to about 3 with the proviso that when t in Formula (II) = 0, or when T is Formula (V), then c is not O provided that the sum of m, c and t does not exceed the unsatisfied valences of the corresponding Ar. Additive concentrates for preparing lubricants and fuels other than two-cycle engine lubricants and fuel compositions as well as lubricating compositions and fuel compositions other than those for two-cycle engines are also disclosed.
摘要:
A dispersant derivatized from a functionalized hydrocarbon and a polyamine having one primary amine and 1-10, preferably 3-8 secondary or tertiary amines; preferably where said functionalized hydrocarbon is a Koch-derived hydrocarbon.
摘要:
Cold high energy fuel compositions for jet, turbine, diesel, fuel oil, and gasoline combustion systems. More particularly, relates to fuels comprised of enhanced combustion structure.
摘要:
The properties of oil and fuel oil compositions are improved by additive combinations comprising a polymer containing the repeating units (I, II) or (III, II) in combination with a comb-like polymer having aryl groups.
摘要:
The low temperature properties of a blend of biofuel and petroleum-based fuel oil are improved by the addition of an ethylene-unsaturated ester copolymer, or a comb polymer, or a polar N compound, or a compound having at least one linear alkyl group connected to a non-polymeric organic residue.
摘要:
Crude oils, lubricating oils or fuel oils have their flow point improved by adding to the crude oil, lubricating oil or fuel oil a minor proportion by weight of a polymer containing the repeating units:
where x is an integer and y is 0 or an integer and wherein in the total polymer x + y is at least two.