Patent ID: 6180683
Filing Date: 2001-01-30
Classification: B01F,C07C,C08K,C08L,C09K,C10G,C10L,Y10S

Abstract:
A synergistic mixture comprising, as asphaltene dispersant, from 20 to 80% by weight of a compound A of the formula (I) or (II) ##STR7##wheren is from 5 to 9 andR is C.sub.4 -C.sub.12 -alkyl, andfrom 20 to 80% by weight of a compound B of the formula (III) ##STR8##in whichR.sup.1 is hydrogen or methylz is 4,x and y, independently of one another, are a number from 5 to 80,A' is a radical of the formula (VII), ##STR9##whereR.sup.2 is a C.sub.6 -C.sub.18 -alkyl radical andm is 2 or 3.