COLD FLOW IMPROVER WITH BROAD APPLICABILITY IN MINERAL DIESEL, BIODIESEL AND BLENDS THEREOF

• Main Authors: HESS, BRIAN, SONDJAJA, RONNY, MAEHLING, FRANK-OLAF, COUET, JULIEN, THONG, DENNIS
• Format: Patent
• Language: English; French
• Published: 24.09.2019
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP

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. La présente invention porte sur des compositions comprenant au moins un polymère poly((méth)acrylate d'alkyle), un copolymère greffé comprenant un copolymère à base d'éthylène utilisé comme base de greffage et un ou plusieurs polymères poly((méth)acrylates d'alkyle) greffés sur celui-ci et au moins un copolymère à base d'éthylène non greffé, ainsi que sur l'utilisation de telles compositions pour améliorer l'efficacité, en particulier les propriétés d'écoulement à froid et la tendance au calaminage d'injecteurs de distillats moyens, en particulier de carburants diesel, de biodiesel et de mélanges de ceux-ci.