Abstract:
A metal-free detergent and antioxidant additive comprising the reaction product of an acidic organic compound, a boron compound, a polyamine such as polyethylene imine, and optionally an alkoxylated amine and/or an alkoxylated amide, is provided. The additives of the present invention have higher TBN than similar compounds known in the art.
Abstract:
Sequestering agents for use in fuels and lubricating oils derived from Mannich condensation reaction utilizing a polyisobutyl-substituted hydroxyaromatic compound, an aldehyde, an alkali metal base, and glycine or aspartic acid, or an ester thereof.
Abstract:
The invention relates to the use of polynuclear phenolic compounds with up to 20 bezene nuclei per molecule, obtained by reaction of a tetrahydrobenzoxazine I, where R 1 = a hydrocarbon group and R 2 , R 3 , R 4 and R 5 independently = H, OH, or hydrocarbon groups, with one or more of the same or different phenols II, where R 7 , R 8 , R 9 and R 10 independently = H, OH or hydrocarbon groups and/or with one or more of the same or different tetrahydrobenzoxazines I, with the proviso that at least one of the substituents has 13 to 3,000 carbon atoms and the remaining substituents, when hydrocarbon groups, have 1 to 20 carbon atoms, as stabilisers for stabilising inanimate organic materials against the effects of light, acid and heat.
Abstract:
Alkylated antioxidant macromolecules are represented by Structural Formula (I), wherein the variables are described herein. Also included are methods of making the molecules and methods of using the molecules as antioxidants.
Abstract:
Alkylated antioxidant macromolecules are represented by Structural Formula (I), wherein the variables are described herein. Also included are methods of making the molecules and methods of using the molecules as antioxidants.
Abstract:
A metal-free detergent and antioxidant additive comprising the reaction product of an acidic organic compound, a boron compound, a polyamine such as polyethylene imine, and optionally an alkoxylated amine and/or an alkoxylated amide, is provided. The additives of the present invention have higher TBN than similar compounds known in the art.
Abstract:
L'invention concerne une composition de carburant essence comprenant au moins 70% massique d'un carburant essence et au moins un composé viscosifiant apte à augmenter la viscosité dynamique du carburant essence jusqu'à une valeur de viscosité dynamique, à une température de 40°C et à pression atmosphérique, supérieure ou égale à 10mPa.s, de préférence 100mPa.s et à lui conférer un caractère rhéofluidifiant. L'invention concerne également un procédé de préparation d'une telle composition de carburant essence. L'invention concerne également son utilisation comme combustible pour moteur à combustion interne d'un véhicule motorisé de compétition.
Abstract:
A lubricant and concentrate composition comprises a hydroxychroman derived antioxidant and a method for improving the performance of a lubricant composition, especially a lubricant composition for an internal combustion engine, comprising the use of a lubricant containing said antioxidant.
Abstract:
The invention relates to a synergistic mixture comprising between 1 and 99.9 wt. % of compounds having structural elements (I) in which the free valencies on the oxygen atom and on the nitrogen atom can be combined to form a five-membered, six-membered, or seven-membered ring and the benzene nucleus can still carry substituents on at least one of the free positions, and between 0.1 and 99 wt. % of sulphurous organic compounds having an anti-oxidant action. The synergistic mixture is suitable as a stabiliser for stabilising inanimate organic material, especially mineral oil products and fuels, against the effects of light, oxygen, and heat.