摘要:
An additive composition comprises a polymer (A) and a condensation product (B). Polymer (A) comprises the following monomer components: (i) one or more compounds of formula (I) wherein R1 is hydrogen or CH3; and R2 is a hydrocarbon group having 6 to 30 carbon atoms and is a straight-chain or branched-chain alkyl group, or an aliphatic or aromatic cyclic group; (ii) one or more compounds of formula (II) wherein R1 has the meaning above and wherein R3 is hydrogen or C1-C22 alkyl; each R4 is independently hydrogen or C1-C22 alkyl; R5 is hydrogen, a substituted or unsubstituted aliphatic or aromatic cyclic group, or a substituted or unsubstituted straight-chain or branched-chain alkyl group having 1 to 22 carbon atoms; n=0 or an integer from 1 to 22; and m is an integer from 1 to 30; and (iii) one or more compounds of formula (III) wherein R6, R7, R8, R9 and R10 are each independently hydrogen, a straight-chain or branched-chain alkyl group having 1 to 20 carbon atoms which may be substituted or unsubstituted, hydroxyl, NH2, or wherein two or more of R6, R7, R8, R9 and R10 may together form an aliphatic or aromatic ring system, which ring system may be substituted or unsubstituted. Condensation product (B) comprises the product formed by the reaction of an aliphatic aldehyde or ketone, or a reactive equivalent, with a substituted phenol or mixture of substituted phenols. The weight:weight ratio of the polymer (A) to the condensation product (B) is from 1:20 to 20:1
摘要:
Disclosed are additive compositions for superior quality diesel and biodiesel fuels for improving the lacquering resistance of fuels, in particular those intended for engines provided with Euro 4 to Euro 6 fuel injection systems. The additive compositions include at least one antioxidant of hindered phenol type and at least one metal passivator.
摘要:
The present invention provides a nitrogen-free fuel detergent additive, fuel additive and fuel compositions containing the same, as well as a process for making such additives, where the additive may be described as a hydrocarbyl-substituted alkyloxy and/or hydroxy aromatic compound and may be produced by the reaction of (i) an alkyloxy and/or hydroxy aromatic compound and (ii) a polyolefin containing from 4 to 350 carbon atoms, in the presence of an optional solvent and/or catalyst, wherein the resulting nitrogen free additive provides acceptable engine deposit control that is comparable and/or better than the deposit control provided by nitrogen-containing fuel additives.
摘要:
In a method of reducing the viscosity of a residue stream from the production of bisphenol-A, the residue stream is combined with at least one of (a) a bottoms stream comprising polyalkylaromatic compounds and remaining after the fractionation of an effluent from an aromatics alkylation process to remove monoalkylaromatic compounds, (b) a stream containing at least 90 wt % phenol and (c) a mixture of phenol and said bottoms stream (a) to produce a combined stream.
摘要:
In a method of reducing the viscosity of a residue stream from the production of bisphenol-A, the residue stream is combined with at least one of (a) a bottoms stream comprising polyalkylaromatic compounds and remaining after the fractionation of an effluent from an aromatics alkylation process to remove monoalkylaromatic compounds, (b) a stream containing at least 90 wt % phenol and (c) a mixture of phenol and said bottoms stream (a) to produce a combined stream.
摘要:
The present invention provides oily liquids comprising A) at least one ester of fatty acids whose carbon chain lengths are between 8 and 30 carbon atoms, and a monohydric C1-C5-alcohol, at least 50% of the fatty acid radicals containing at least one double bond, and B) at least one alkylphenol-aldehyde resin, obtainable by condensing (i) at least one alkylphenol having at least one C6-C24-alkyl or C6-C24-alkenyl radical and (ii) at least one aldehyde or ketone to a degree of condensation of between 2 and 50 alkylphenol units.
摘要:
The present invention provides oily liquids comprising A) at least one ester of fatty acids whose carbon chain lengths are between 8 and 30 carbon atoms, and a monohydric C1-C5-alcohol, at least 50% of the fatty acid radicals containing at least one double bond, and B) at least one alkylphenol-aldehyde resin, obtainable by condensing (i) at least one alkylphenol having at least one C6-C24-alkyl or C6-C24-alkenyl radical and (ii) at least one aldehyde or ketone nullto a degree of condensation of between 2 and 50 alkylphenol units.
摘要:
Hindered tert-butylphenolic antioxidant compositions characterized by a low level of volatile and undesirable single-ring tert-butylphenolic antioxidants and a high level of non-volatile multi-ring (or methylene bridged) tert-butylphenolic antioxidants are obtained by reacting a specific mixture of ultra pure ortho-tert-butylphenol (OTBP), ultra pure 2,6-di-tert-butylphenol (DTBP) and formaldehyde in a solvent in the presence of catalyst. These antioxidants are further characterized by having a low level of 2,6-di-tert-butylphenol, low levels of ortho-tert-butylphenol, and trace levels of 2,4,6-tri-tert-butylphenol.
摘要:
Coking in and around the injector nozzles of indirect injection compression ignition engines is reduced by means of distillate fuel with which has been blended suitable concentrations of (i) organic nitrate ignition accelerator, and (ii) 1,3,5-trimethyl-2,4,6-tri(3,5-dialkyl-4-hydroxybenzyl)benzene.Also described are additive mixtures of (i) and (ii) for use in distillate fuels in amounts sufficient to reduce the coking tendencies of such fuels when used in the operation of indirect injection compression ignition engines.
摘要:
A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a --AR--(OH).sub.b I wherein R* is a hydrocarbyl group selected from the group consisting of hydrocarbyl groups of from about 8 to about 30 carbon atoms and polymers of at least 30 carbon atoms, Ar is an aromatic moiety having 0 to 4 optional substituents selected from the group consisting of lower alkyl, lower alkoxyl, nitro, halo or combinations of two or more of said optional substituents, and a and b are each independently an integer of 1 up to 5 times the number of aromatic nuclei present in Ar with the proviso that the sum of a and b does not exceed the unsatisfied valences of Ar;(iii) mixtures of (i) and (ii); and(B) as a second component, the reaction product of (B)(I) a hydrocarbyl-substituted carboxylic acylating agent with (B)(II) one or more amines, one or more alcohols, or a mixture of one or more amines and/or one or more alcohols, the hydrocarbyl substituent of said agent (B)(I) being selected from the group consisting of(i') one or more mono-olefins of from about 8 to about 30 carbon atoms;(ii') mixtures of one or more mono-olefins of from about 8 to about 30 carbon atoms with one or more olefin polymers of at least 30 carbon atoms selected from the group consisting of polymers of mono-1-olefins of from 2 to 8 carbon atoms, or the chlorinated or brominated analogs of such polymers; and(iii') one or more olefin polymers of at least 30 carbon atoms selected from the group consisting of(a) polymers of mono-olefins of from about 8 to about 30 carbon atoms;(b) interpolymers of mono-1-olefins of from 2 to 8 carbon atoms with mono-olefins of from about 8 to about 30 carbon atoms;(c) one or more mixtures of homopolymers and/or interpolymers of mono-1-olefins of from 2 to 8 carbon atoms with homopolymers and/or interpolymers of mono-olefins of from about 8 to about 30 carbon atoms; and(d) chlorinated or brominated analogs of (a), (b), or (c).