摘要:
The invention relates to the use, in a hydrocarbon distillate with a boiling temperature of between 150 and 450° C. and a crystallization onset temperature as measured by Differential Calorimetric Analysis of greater than or equal to −50° C., preferably of −5° C. to +10° C., of a homopolymer obtained from an olefinic ester of carboxylic acid of 3 to 12 carbon atoms and from a fatty alcohol containing a chain of more than 16 carbon atoms and optionally an olefinic double bond, as a compound for revealing the efficiency of filterability additives based on copolymer and/or terpolymers of ethylene and of vinyl ester of a carboxylic acid of 3 to 12 carbon atoms, and of a monoalcohol containing 1 to 10 carbon atoms. The invention is also directed to an additive composition comprising a conventional hydrocarbon filterability additive in combination with an efficiency reveal additive, and also to the combustion fuels, motor fuel and oil fuel that comprise these additive combinations.
摘要:
The invention relates to the use, in a hydrocarbon distillate with a boiling temperature of between 150 and 450° C. and a crystallization onset temperature as measured by Differential Calorimetric Analysis of greater than or equal to −50° C., preferably of −5° C. to +10° C., of a homopolymer obtained from an olefinic ester of carboxylic acid of 3 to 12 carbon atoms and from a fatty alcohol containing a chain of more than 16 carbon atoms and optionally an olefinic double bond, as a compound for revealing the efficiency of filterability additives based on copolymer and/or terpolymers of ethylene and of vinyl ester of a carboxylic acid of 3 to 12 carbon atoms, and of a monoalcohol containing 1 to 10 carbon atoms. The invention is also directed to an additive composition comprising a conventional hydrocarbon filterability additive in combination with an efficiency reveal additive, and also to the combustion fuels, motor fuel and oil fuel that comprise these additive combinations.
摘要:
The invention relates to the use, in a hydrocarbon distillate with a boiling temperature of between 150 and 450° C. and a crystallization onset temperature as measured by Differential calorimetric Analysis of greater than or equal to −50° C., preferably of −5° C. to +10° C., of a homopolymer obtained from an olefinic ester of carboxylic acid of 3 to 12 carbon atoms and from a fatty alcohol containing a chain of more than 16 carbon atoms and optionally an olefinic double bond, as a compound for revealing the efficiency of filterability additives based on copolymer and/or terpolymers of ethylene and of vinyl ester of a carboxylic acid of 3 to 12 carbon atoms, and of a monoalcohol containing 1 to 10 carbon atoms. The invention is also directed to an additive composition comprising a conventional hydrocarbon filterability additive in combination with an efficiency reveal additive, and also to the combustion fuels, motor fuel and oil fuel that comprise these additive combinations.
摘要:
The subject of the disclosure concerns C8 or higher, linear or branched fatty chain (meth)acrylic polymers possibly containing at least one ethylene unsaturation, having a weight average molecular weight Mw of less than 20,000 g/mole, free of sulphur-containing, metallic and halogenated compounds and with a residual monomer content measured by GPC of no more than 10% by weight, preferably no more than 7% by weight. A further subject of the disclosure is the synthesis method and the uses of these polymers.
摘要:
The disclosure relates to the synthesis and the use of copolymers based on ethylene and/or of propylene and of vinyl ester(s) modified by grafting, effective for improving both the resistance to cold and the lubricity of liquid hydrocarbons in particular the middle distillates originating from the distillation of petroleum and crude oils, in particular those with a low sulphur content and relates to a copolymer including: a) units derived from ethylene of formula A —(CH2—CH2)n1— and/or propylene of formula A′ —((CH3)CH2—CH2)n2 with n1+n2=n ranging from 98 to 643, preferably ranging from 124 to 515; n1 being advantageously equal to n; b) units of formula B: —(CH2—CHOOCR1)m-x— in which R1 represents a C1-C15 linear or branched alkyl group preferably methyl, propyl, and/or a C5 to C15 branched alkyl group, in which the branching is situated at any point of the alkyl radical, preferably in position 2 or 3 of the alkyl chain; preferably chosen from the preferred C5-C15 vinyl comonomers, preferably chosen from the pivalate, isopentanoate, isohexanoate, isononanoate, isodecanoate and/or isotridecanoate, and advantageously 2-ethyl hexanoate, neoalkanoates, in particular neononanoate, neodecanoate and/or neoundecanoate; with m ranging from 2 to 105, preferably ranging from 16 to 71 and x ranging from 0.2 to 105, preferably ranging from 1.6 to 71; c) units of formula C: —(CH2—CHOH)x1— in which x1 ranges from 0 to 0.30x, preferably x1=0; d) units of formula D: —(CH2—CHOOCR2)x2— in which x2 ranges from 0.70x to x, preferably x2=x, and R2 represents a C8-C24 saturated or unsaturated, linear or branched, alkyl group, preferably C14-C20 or also C14 to C18 with x=x1+x2.
摘要:
The subject of the disclosure concerns C8 or higher, linear or branched fatty chain (meth)acrylic polymers possibly containing at least one ethylene unsaturation, having a weight average molecular weight Mw of less than 20,000 g/mole, free of sulphur-containing, metallic and halogenated compounds and with a residual monomer content measured by GPC of no more than 10% by weight, preferably no more than 7% by weight. A further subject of the disclosure is the synthesis method and the uses of these polymers.
摘要:
Modified alkylphenol-aldehyde resins include one or more alkylamines, having preferably at least one primary amine type group as well as their use for improving the flow properties of motor fuels and hydrocarbon fuels, such as in particular jet fuel, gas oil, fuel oil domestic, heavy fuel oil.
摘要:
Modified alkylphenol-aldehyde resins include one or more alkylamines, having preferably at least one primary amine type group as well as their use for improving the flow properties of motor fuels and hydrocarbon fuels, such as in particular jet fuel, gas oil, fuel oil domestic, heavy fuel oil.