Use of hydrophobically modified polyalkanolamines obtainable by condensing at least one trialkanolamine and optionally further condensable monomers and reacting at least one of the terminal OH groups with suitable reactants capable of reacting with OH groups and comprising long chain hydrocarbon groups as wax inhibitor, pour point depressant and additive for lubricants.

The invention relates to the use of copolymers obtainable by - in a first reaction step (I) - copolymerization of (A) at least one ethylenically unsaturated mono- or dicarboxylic acid or derivatives thereof, preferably a dicarboxylic acid, (B) at least one α-olefin having from at least 12 up to and including 30 carbon atoms, (C) optionally at least one further aliphatic or cycloaliphatic olefin comprising at least 4 carbon atoms, which is distinct from (B), and (D) optionally one or more further copolymerizable monomers which are distinct from the monomers (A), (B) and (C), selected from the group consisting of (Da) vinyl esters, (Db) vinyl ethers, (Dc) (meth)acrylic acid esters of alcohols comprising at least 5 carbon atoms, (Dd) allyl alcohols or ethers thereof, (De) N-vinyl compounds selected from the group consisting of vinyl compounds of heterocycles containing at least one nitrogen atom, N-vinyl amides or N-vinyl lactams, (Df) ethylenically unsaturated aromatics, (Dg) α,β-ethylenically unsaturated nitriles, (Dh) (meth)acrylic acid amides and (Di) allyl amines, followed by - in a second reaction step (II) - partial or complete reaction of anhydride or carboxylic acid functionalities present in the copolymer obtained in (I) with at least one compound (E) which contains at least one alcohol group or at least one amino group and at least one carboxylic acid group or at least one carboxylic acid ester group, and - in a third reaction step (III) - hydrolysis of the anhydride functionalities present in the copolymer obtained in (II) and/or partial or complete saponification of carboxylic acid ester functionalities present in the copolymer obtained in (II) as a fuel or lubricant additive, in particular as a diesel fuel additive.

The present invention relates to novel quaternized nitrogen compounds, to the preparation thereof and to the use thereof as a fuel and lubricant additive, more particularly as a detergent additive; to additive packages which comprise these compounds; and to fuels and lubricants thus additized. The present invention further relates to the use of these quaternized nitrogen compounds as a fuel additive for reducing or preventing deposits in the injection systems of direct-injection diesel engines, especially in common-rail injection systems, for reducing the fuel consumption of direct-injection diesel engines, especially of diesel engines with common-rail injection systems, and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.

Изобретение относится к полиалкенаминовым композициям, предназначенным в качестве присадки для топлива или смазочного материала, способу получения таких композиций, также к составу топлива и составу смазочного материала, набору присадок и применению этих композиций в качестве присадок, в частности в качестве присадки для улучшения очищающего действия топлива во впускных системах двигателя внутреннего сгорания с принудительным зажиганием. Полиалкенаминовая композиция содержит, по меньшей мере, один полиалкенамин в растворителе, выбранном из группы, включающей смеси компонентов L1 и L2, где L1 представляет собой, по меньшей мере, один н- или изо-С10-С14-парафин, а L2 представляет собой, по меньшей мере, один С10-C14-нафтен, причем L1 и L2 взяты в соотношении от 10:90 до 90:10. Технический результат состоит в улучшении технологических свойств полиалкенаминовой композиции, в частности в улучшении низкотемпературных свойств. 8 н. и 9 з.п. ф-лы, 3 табл.

LA INVENCION SE REFIERE A CONCENTRADOS DE ADITIVOS PARA CARBURANTES Y LUBRICANTES, QUE CONTIENEN POR LO MENOS UN DERIVADO DE ANTRAQUINONA COMO SUSTANCIA MARCADORA, AL USO DE TALES CONCENTRADOS PARA LA ADITIVACION DE ACEITES MINERALES, ASI COMO A ACEITES MINERALES, QUE CONTIENEN TALES CONCENTRADOS.

Reaction products of A) polyalkenylsuccinic acid imidoamines of the formula I in which R is an aliphatic radical still containing at least one double bond and having an average molecular weight from 400 to 5000, and N-R is the radical of an aliphatic polyamine having 2 to 7 nitrogen atoms, to which one to two further polyalkenylsuccinic acid radicals can also be bound, under amidating conditions with B) a tri- or tetracarboxylic acid in a polyalkenylsuccinic acid radical:polycarboxylic acid molar ratio from 1:1 to 3:1 in the case of the tricarboxylic acid and 1:1 to 4:1 in the case of the tetracarboxylic acid.

1. Low-foam microbiostatic or microbicidal corrosion inhibitors for iron, iron-containing metals, aluminium or aluminium-containing metals, consisting of (a) at least one reaction product of orthoboric acid and at least one alkanolamine, containing 2 or 3 carbon atoms per alkanol group, in a molar ratio of 1:1 to 1:4, and (b) at least one other component which consists of (b1 ) a mono-, di- or trialkanolamine salt of a maleamic acid of the formula I R-NH-CO-CH=CH-COOH where R is isoalkyl whose longest chain has 6 to 8 carbon atoms and which contains a total of 8 to 12 carbon atoms, or (b2 ) a compound of the formula II see diagramm : EP0015442,P7,F2 where R**1 is a linear or branched, saturated or olefinically or acetylenically unsaturated alkyl of 1 to 18 carbon atoms, or if R**1 is an unsaturated radical, it contains 3 to 18 carbon atoms, the alkyl optionally containing methoxy or ethoxy groups, or R**1 is cycloalkyl having 5 to 12 members, phenyl optionally substituted by alkyl of 1 to 3 carbon atoms, a methoxy or ethoxy group or halogen, or is phenylalkyl containing 1 to 5 carbon atoms per alkyl ; R**2 is hydrogen or R**1 ; R**1 and R**2 together with the nitrogen atom form a piperidine, piperazine, pyrrolidine or morpholine ring ; R**3 is alkylene of 2 to 5 carbon atoms ; and X**+ is an alkali metal or ammonium cation, or a cation derived from mono-, di- and trimethylamine, mono-, di- and triethylamine, mono-, di- and triisopropylamine, mono-, di- and triisobutylamine, 2-methoxyethylamine, 3-methoxypropylamine, 2-ethylhexylamine, mono-, di- and triethanolamine, 3-aminopropanol, cyclohexylamine, N,N-dimethylcyclohexylamine, morpholine, pyridine, quinoline, ethylenediamine, diethylenetriamine, pentaethylenehexamine or an ethoxylated or propoxylated primary amine, or is a proton, or consists of a mixture of (b1 ) and (b2 ), the weight ratio of (a) to (b) being 85:15 to 15:85.

L'invention concerne des granulés de polyamide munis d'un lubrifiant. Selon l'invention, les granulés sont revêtus en surface d'un ester d'acide carboxylique aliphatique saturé en C 6 -C24 et d'alcools aliphatique saturé en C2 -C24 , à partir d'une dispersion aqueuse. Les granulés obtenus conviennent pour la fabrication de pièces moulées par injection.

所要求保护的发明涉及通过使聚四氢呋喃与至少一种C9‑C27酸反应而制备的聚亚烷基二醇酯在润滑油组合物中的用途。

A method for preventing corrosion in storage tanks, pipelines and fuel supply systems in motor vehicles which are in contact with fuel, involves adding to the fuel small amounts of derivative(s) of polyisobutylsuccinic anhydride (I) with at least one prim. or sec. amino group, imino group and/or hydroxyl group.