Dispersants prepared from high polydispersity olefin polymers

A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (Mw/{overscore (Mn of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the pre...

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Main Authors MCCULLOUGH GREGORY R, KOLP CHRISTOPHER J, PUDELSKI JOHN K, BAUMANIS CHARLES K, BURRINGTON JAMES D, DIETZ JEFFRY G, JOHNSON JOHN R, CERDA DE GROOTE CARLOS L
Format Patent
LanguageEnglish
Published 31.12.2002
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (Mw/{overscore (Mn of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.
Bibliography:Application Number: US20020119873