Evonik Oil Additives GmbH Patent applications |
Patent application number | Title | Published |
20160097017 | TRANSMISSION OIL FORMULATION FOR REDUCING FUEL CONSUMPTION - The present invention relates to a transmission oil formulation comprising a base oil and a copolymer obtained by free-radical polymerization from a monomer composition. The invention also relates to the use of the transmission oil formulation as transmission oil for reducing the fuel consumption of motor vehicles. | 04-07-2016 |
20150344801 | COLD FLOW IMPROVER WITH BROAD APPLICABILITY IN MINERAL DIESEL, BIODIESEL AND BLENDS THEREOF - The present application relates to compositions comprising at least one polyalkyl(meth)acrylate polymer, a graft copolymer comprising a copolymer based on ethylene as graft base and one or more polyalkyl(meth)acrylate polymer(s) grafted thereon, and at least one non-grafted ethylene-based copolymer, as well as to the use of such compositions to improve the performance, especially the cold flow properties and injector nozzle coking tendency of middle distillates, especially diesel fuels, biodiesel and blends thereof. | 12-03-2015 |
20150322322 | HEAT TRANSFER-FLUID WITH ELECTRICAL INSULATING PROPERTIES - The present invention relates to the use of a liquid composition as heat transfer fluid, characterized in that the liquid composition comprises polymers derived from at least an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers. Preferably, the liquid composition is used as a heat transfer fluid for electrical equipment. | 11-12-2015 |
20150291717 | PREPARATION OF LOW-VISCOSITY POLYMERS - The present invention relates to a method for preparing a polymer composition, said method comprising the steps of: a) preparing a reaction mixture comprising as component A) an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers and as component B) a 1-alkene or a mixture of 1-alkenes; b) adding a Co(II) complex as a catalytic chain transfer agent to the reaction mixture; c) adding a radical initiator; and d) reacting the reaction mixture to obtain the polymer composition, wherein the total amount of the radical initiator added to the reaction mixture is at least 0.05% by weight relative to the total weight of components A) and B). The present invention also relates to the use of a Co(II) complex as catalytic chain transfer agent for the polymerization of a reaction mixture comprising an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers, a radical initiator, and a 1-alkene or a mixture of 1-alkenes, wherein the total amount of the radical initiator added to the reaction mixture is at least 0.05% by weight relative to the total weight of the ethylenically unsaturated monomer or mixture of ethylenically unsaturated monomers and the 1-alkene or mixture of 1-alkenes. | 10-15-2015 |
20150232783 | COMPOSITION TO IMPROVE LOW TEMPERATURE PROPERTIES AND OXIDATION STABILITY OF VEGETABLE OILS AND ANIMAL FATS - The present invention describes a composition comprising: (A) at least one polyalkyl (meth) acrylate polymer having a number average molecular weight M | 08-20-2015 |
20150059238 | USE OF COLD FLOW IMPROVER COMPOSITIONS FOR FUELS, BLENDS THEREOF WITH BIOFUELS AND FORMULATIONS THEREOF - The present invention relates to the use of polyalkyl(meth)acrylates as an additive to fuels, especially middle distillate fuels and blends thereof. The present invention further relates to the use of a composition comprising polyalkyl(meth)acrylates as dispersing species susceptible to disperse waxes and sludgy material at low temperatures and a hydrocarbon solvent/an oil for improving the cold flow properties of fuel oil and fuel oil compositions. The present invention further relates to the use of these compositions as an additive to fuels, especially in the function of paraffin dispersant, to such fuels themselves and to fuel additive concentrates which comprise this composition dissolved in a hydrocarbon solvent or an oil. | 03-05-2015 |
20140206823 | METHOD FOR REDUCING THE HALOGEN CONTENT OF A POLYMER - The invention relates to a method for reducing the halogen content of a polymer, characterized in that the polymer is reacted with a polymerization inhibitor; and especially to a method wherein said polymer is a polymerization product of an ATRP process. | 07-24-2014 |
20140135242 | LUBRICANT COMPOSITION WITH PHOSPHORUS-FUNCTIONALIZED POLYMERS - The present invention relates to a lubricant composition comprising at least one polyalkyl(meth)acrylate including repeating units derived from (meth)acrylates having 6 to 22 carbon atoms in the alcohol radical, wherein the polyalkyl(meth)acrylate includes repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom. The present invention further relates to a polyalkyl(meth)acrylate suitable for such a lubricant composition and to the use of a polyalkyl(meth)acrylate having repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom for reducing friction. | 05-15-2014 |
20140066566 | POLY(METH)ACRYLATE AS MULTIFUNCTIONAL ADDITIVE IN PLASTICS - The present invention relates to use of a novel, single-component additive for addition to thermoplastics, in particular polyvinyl chloride (PVC). The resultant reduced friction delays melting of the thermoplastic during extrusion and therefore improves fluidity and lowers the process pressure required. The reduced friction moreover facilitates processing in shaping machinery by reducing adhesion to metal. In order to provide these technical improvements, the present invention provides a novel poly(meth)acrylate-based additive for thermoplastics, in particular for PVC. This features a poly(meth)acrylate backbone and long alkyl solid chains. | 03-06-2014 |
20140033605 | COMPOSITION TO IMPROVE OXIDATION STABILITY OF FUEL OILS - The present invention describes a composition comprising at least one antioxidant and at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth)acrylate having 1 to 30 carbon atoms in the alkyl residue. The composition is useful as cold flow improver and oxidation stabilizer in fossil fuel oil and or biodiesel fuel oil. | 02-06-2014 |
20140005084 | FRICTION-IMPROVED POLYMERS FOR DLC-COATED SURFACES | 01-02-2014 |
20130306523 | METHOD FOR DEWAXING MINERAL OIL COMPOSITIONS - The present invention relates to a lubricant composition for a process for reducing the paraffin content of mineral oil compositions, by providing a mineral oil composition with a dewaxing aid, cooling to form a paraffin precipitate and at least partly removing the paraffin precipitate formed. The dewaxing aid used is a copolymer mixture comprising at least three copolymers, the copolymers differing in the composition of the repeat units. | 11-21-2013 |
20130252866 | COPOLYMERS COMPRISING ESTER GROUPS AND USE THEREOF IN LUBRICANTS - The present invention relates to copolymers comprising ester groups and having at least one nonpolar segment P and at least one polar segment D, the polar segment D having at least 8 repeat units and the proportion by weight of dispersing repeat units in the polar segment D being at least 30%, based on the weight of the polar segment D, wherein the copolymer comprising ester groups is obtainable by NMP (nitroxide mediated polymerization). The invention further relates to lubricant oils having improved friction properties and comprising said copolymers. | 09-26-2013 |
20130219868 | DIESEL MOTOR HAVING IMPROVED PROPERTIES - The present invention describes a motor designed for biodiesel compatibility comprising a particulate filter, a motor control unit being able to inject fuel to the engine in order to increase the exhaust temperature, and a lubricant composition, characterized in that the lubricant composition comprises at least one ester group containing polymer. | 08-29-2013 |
20130199482 | MOTOR HAVING IMPROVED PROPERTIES - The present invention describes a motor designed for Fuel compatibility comprising a lubricant composition comprises at least one ester group containing polymer having a high polarity. | 08-08-2013 |
20130131254 | PROCESS FOR PRODUCING POLYMER DISPERSIONS - The present invention relates to a process for producing a dispersion comprising at least one carrier medium, at least one emulsifier and at least one polymer based on polyolefins, by dispersing a heterogeneous composition using a mixer which works by the rotor-stator principle. The present invention additionally describes a polymer dispersion obtainable by the process. | 05-23-2013 |
20130079265 | POLYALKYL(METH)ACRYLATE FOR IMPROVING LUBRICATING OIL PROPERTIES - The invention relates to a polyalkyl (meth) acrylate for improving lubricating oil properties, which comprises repetition units which are derived from (meth) acrylates having 6 to 22 carbon atoms in the alcohol residues, and repetition units which are derived from amine derivatives of an ethylenically unsaturated monomer. The invention further relates to methods for producing and using the present polyalkyl (meth) acrylate. | 03-28-2013 |