Patent ID: 6063146
Filing Date: 2000-05-16
Classification: C07C,C09K,C10L

Abstract:
A composition comprising crude oil,heavy fuel oil, marine oil or bitumen and as an asphaltene dispersant, an ethercarboxylic acid of the formulaRO(CH.sub.2 CHR.sub.1 O).sub.x (CH.sub.2 CHR.sub.2 O).sub.y CH.sub.2 --CO.sub.2 HwhereR is C.sub.6 -C.sub.22 -alkyl or -alkenyl, C.sub.6 -C.sub.20 -alkylaryl,R.sub.1 and R.sub.2 independently of one another are H or methyl, andx and y independently of one another are a number from 0 to 20, the sum of x and y being 1 to 20.