Dispersant viscosity modifiers based on maleic...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/14 (2006.01) C08F 8/32 (2006.01) C08F 210/00 (2006.01) C08F 212/02 (2006.01) C08F 220/00 (2006.01) C08F 222/00 (2006.01) C10M 149/06 (2006.01) C10M 149/10 (2006.01)

Patent

CA 2563504

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.

Une composition interpolymère comprenant des unités dérivés de monomères de (i) au moins une oléfine aliphatique contenant entre 2 et 30 atomes de carbone et un monomère aromatique vinyle, et (ii) au moins un agent d'acylation alpha-beta-insaturé; une partie des monomères d'agent d'acylation étant estérifiée et une partie des monomères d'agent d'acylation étant condensée avec au moins une amine aromatique, ce qui permet d'assurer une modification de la viscosité et une performance de la dispersion de qualité.

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