PRESTRIPPED POLYMER USED TO IMPROVE KOCH REACTION DISPERSANT ADDITIVES

The invention pertains to the prestripping of polymer prior to use in the Koch reaction for making dispersant additives. It was djscovered that by prestripping or removal of light hydrocarbon andunreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of ligh...

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Hauptverfasser:	ECKSTROM, WILLIAM BERNARD, DIANA, WILLIAM, GORDA, KEITH RAYMOND, CUSUMANO, JOSEPH VICTOR, EMERT, JACOB ISAAC, STANAT, JON EDMOND, DANKWORTH, DAVID CHARLES
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS BASED THEREON FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIQUEFIED PETROLEUM GAS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE 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:	The invention pertains to the prestripping of polymer prior to use in the Koch reaction for making dispersant additives. It was djscovered that by prestripping or removal of light hydrocarbon andunreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of light ester impurities generated was minimized. Light ester is an undesirable byproduct that adversely affects the recycle of the catalyst from the functionalization step of the Koch reaction.