摘要:
The invention provides a fuel oil composition comprising a fuel oil of mineral origin and a fuel oil of vegetable and/or animal origin and as a cold additive, the constituents, at least one copolymer composed of ethylene and 8-21 mol % of at least one acrylic and vinyl ester having a C1-C18 alkyl radical and at least one comb polymer containing structural units composed of at least one olefin as monomer 1 which bears at least one C8-C18 alkyl radical on the olefinic double bond, and at least one ethylenically unsaturated dicarboxylic acid as monomer 2 which bears at least one C8-C16 alkyl radical bonded via an amide and/or imide moiety.
摘要:
The present invention provides an additive for improving the lubricity of fuel oils having a maximum sulfur content of 0.035% by weight. The additive comprises A) at least one partial ester composed of a di- or polyhydric alcohol and unsaturated and optionally also saturated fatty acids whose carbon chain lengths are between 8 and 30 carbon atoms, at least 60% of the fatty acid radicals containing at least one double bond, and B) at least one alkylphenol-aldehyde resin, obtainable by the condensation of (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 invention provides compositions comprising at least one alkylphenol-aldehyde resin (constituent I) and, based on the alkylphenol resin, from 0.005 to 10% by weight of at least one oil-soluble organic ammonium sulfonate (constituent II).
摘要:
The present invention relates to an additive for improving the lubrication capacity of fuel oils with a maximum sulfur content of 0.035 wt. %. The additive contains at least one ester of a bivalent or polyvalent alcohol and a mixture of unsaturated and optionally saturated fatty acids, whose carbon chain lengths are between 8 and 30 carbon atoms, the aforementioned esters having an OH value of less than 200 mg KOH/g ester and an iodine value greater than 100 g l/100 g ester. The invention also relates to fuel oils with a maximum sulfur content of 0.035 wt. %, which contain the inventive additives. The novel additives exhibit less tendency to emulsify than the additives of the prior art.
摘要:
A middle distillate having a maximum um sulfur content of 0.05% by weight and containing fatty acid esters of alkoxylated polyols having at least 3 OH groups (A) and also at least one cold flow improver (B). The cold flow improver includes at least one copolymer of ethylene and one or more ethylenically unsaturated carboxylic esters having an ethylene portion of from 60 to 90 mol %.
摘要:
The invention thus provides crude oils and products which have been produced therefrom and comprise distillation residues, comprising at least one alkylphenol-aldehyde resin having a repeat structural unit of the formula where R1 is a branched alkyl or alkenyl radical which has from 10 to 40 carbon atoms and bears at least one carboxyl, carboxylate and/or ester group, R2 is hydrogen or R1 R3 is hydrogen or an alkoxy group of the formula -(A-O)m—H, A is a C2- to C4-alkylene group, m is from 1 to 100, R4 is hydrogen, a C1- to C11-alkyl radical or a carboxyl group, R5 is C1-C200-alkyl or -alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or -alkenyl, n is from 1 to 100 and k is 1 or 2, the use of the alkylphenol-aldehyde resin for splitting emulsions of water and crude oils or products derived therefrom, the use of the alkylphenol-aldehyde resin for improving the cold flowability of crude oils and products derived therefrom, and the use of the alkylphenol-aldehyde resin as an asphaltene dispersant in crude oils and products derived therefrom.
摘要:
The invention provides compositions comprising at least one alkylphenol-aldehyde resin (constituent I) and, based on the alkylphenol resin, from 0.005 to 10% by weight of at least one oil-soluble organic ammonium sulfonate (constituent II).
摘要:
The invention provides a fuel oil composition F) comprising F1) a fuel oil of mineral origin and F2) a fuel oil of vegetable and/or animal origin, and, as a cold additive, the constituents A) at least one copolymer composed of ethylene and 8-21 mol% of at least one acrylic or vinyl ester having a C1-C18-alkyl radical and B) at least one comb polymer containing structural units composed of B1) at least one olefin as monomer 1 which bears at least one C8-C18 alkyl radical on the olefinic double bond, and B2) at least one ethylenically unsaturated dicarboxylic acid as monomer 2 which bears at least one C8-C16 alkyl radical bonded via an amide and/or imide moiety, where the sum Q Q = ∑ i w 1 i · n 1 i + ∑ j w 2 j · n 2 j of the molar averages of the carbon chain length distributions in the alkyl radicals of monomer 1 on the one hand and the alkyl radicals of the amide and/or imide groups of monomer 2 on the other is from 21.0 to 28.0, where w1 is the molar proportion of the individual chain lengths in the alkyl radicals of monomer 1, w2 is the molar proportion of the individual chain lengths in the alkyl radicals of the amide and/or imide groups of monomer 2, n1 are the individual chain lengths in the alkyl radicals of monomer 1, n2 are the individual chain lengths in the alkyl radical of the amide and/or imide groups of monomer 2, i is the serial variable for the individual chain lengths in the alkyl radicals of monomer 1, and j is the serial variable for the individual chain lengths in the alkyl radicals of the amide and/or imide groups of monomer 2.
摘要:
Oil-soluble copolymers having an OH number of from 10 to 250 and a molecular weight of from 1000 to 100,000 g/mol, obtained from the reaction of a copolymer precursor which comprises structural units of A) from 5 to 95 mol-% of an olefinically unsaturated carboxylic acid or a derivative of such an acid, B) from 5 to 95 mol-% of an olefinically unsaturated compound having at least one hydrocarbon radical containing at least 6 carbon atoms, and, if desired, C) from 0 to 40 mol-% of further structural units selected from the group consisting of C1-C6-alkyl (meth)acrylates, C1-C6-alkyl vinyl esters and C2-C6-olefins, with a reagent, which must carry at least one OH group and which, apart from this OH group, has at least one further functional group which is capable of reacting with the carboxylic acid or the derivative of a carboxylic acid as in component A), where the residual acid number is set to a value below 50 mg of KOH/g of copolymer by addition of the reagent.
摘要:
The invention relates to polymers carrying ester/hydroxyl groups, containing repetitive structural units of formulae (I) and (II) in a block-wise, alternating or statistical sequence, wherein D represents a direct bond between the polymer backbone and the hydroxyl group, a C1- to C6-alkene group, a C5- to C12-arylene group, an oxyalkene group of formula —O—R2—, an ester group of formula —C(O)—O—R2— or an amide group of formula —C(O)—N(R3)R2—, E represents a hydrocarbon group having 1 to 50 C-atoms, R2 represents a C2- to C10-alkene group, R3 represents hydrogen or a C1- to C10-alkyl group, which can carry substituents, k represents a number between 1 and 1000, n represents a number from 0 to 4999, m represents a number from 1 to 5000, and n+m represents a number between 10 to 5000, under the proviso that a) the molar portion of the structural units (I); on the polymer is between 0 and 99.9 mol-%, and b) the molar portion of the structural units (II) on the polymer is between 0.1 and 100 mol-% of the repetitive units. The invention also relates to a method for the production of said polymers using microwaves.