Dispersant viscosity modifiers based on maleic anhydride-styrene copolymers

An interpolymer composition comprising monomer-derived units of (i) at least one of an aliphatic olefin containing from 2 to 30 carbon atoms and a vinyl aromatic monomer, and (ii) at least one alpha, beta-unsaturated acylating agent; wherein a portion of said acylating agent monomers is esterified a...

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Bibliographische Detailangaben
1. Verfasser: VARGO DANIEL,VISGER DANIEL,SCHOBER BARTON,PATTERSON SUZANNE,MOSIER PATRICK,FRIEND CHRISTOPHER,PUDELSKI JOHN,COVITCH MICHAEL J.,JAMES CALVIN A.,PRICE DAVID,ORZECH LEONARD
Format: Patent
Sprache:eng
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Zusammenfassung:An interpolymer composition comprising monomer-derived units of (i) at least one of an aliphatic olefin containing from 2 to 30 carbon atoms and a vinyl aromatic monomer, and (ii) at least one alpha, beta-unsaturated acylating agent; wherein a portion of said acylating agent monomers is esterified and wherein a portion of said acylating agent monomers is condensed with at least one aromatic amine, provides good viscosity modification and dispersancy performance.