use of umsetzungsprodukten of alkenylspirobislactonen and amines as paraffindispergatoren.

摘要

Use of reaction products of alkenyl-spirobislactones of the formula …IMAGE… in which R is C8-C200-alkenyl in each case, with amines of the formula… NR1R2R3,… where R1, R2 and R3 can be identical or different and at least one of these groups R1, R2 or R3 is C8-C36-alkyl, C8-C36-alkenyl or cyclohexyl and the other groups are hydrogen or a group of the formula -(A-O)xH or -(CH2)n-NYZ, A-C2H4- and/or -C3H6-, x is a number from 1 to 20, n is 2 or 3 and Y and Z can be identical or different and are hydrogen or a group of the formula -(A-O)xH, as paraffin dispersants in middle distillates and crude oil.