ASHLESS DISPERSANTS, THEIR PREPARATION, AND THEIR USE

Ashless dispersants are formed using copolymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, the polymer contains up to 25 mol percent...

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Bibliographische Detailangaben
Hauptverfasser:	VALCHO, JOSEPH, J, ROLLIN, ANTHONY, J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HETEROCYCLIC COMPOUNDS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LIQUEFIED PETROLEUM GAS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL GAS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLISHES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	Ashless dispersants are formed using copolymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, the polymer contains up to 25 mol percent of a C4 to C10 monoolefin polymerized into the polymer chains. Des dispersants sans cendre sont formés au moyen de copolymères de propylène caractérisés en ce que ce sont des polymères liquides sensiblement linéaires, ils présentent une stéréo-irrégularité dans la chaîne polymérique, au moins 60 % en moles du polymère possèdent un groupe vinylidène terminal, et le polymère contient jusqu'à 25 % en moles d'une mono-oléfine C4 à C10 polymérisée dans les chaînes polymériques.