Patent ID: 8628591

Claim:
A method for improving the response behavior of mineral oil cold flow improvers C), wherein C) is an oil-soluble polar nitrogen compound which is the reaction product of compounds of the formula NR 6 R 7 R 8 in which R 6 , R 7 and R 8 may be the same or different, and at least one of these groups is C 8 -C 36 -alkyl, C 6 -C 36 -cycloalkyl, C 8 -C 36 -alkenyl, and the remaining groups are either hydrogen, C 1 -C 36 -alkyl, C 2 -C 36 -alkenyl, cyclohexyl or a group of the formula -(A-O) x -E or —(CH 2 ) n —NYZ in which A is an ethyl or propyl group, x is from 1 to 50, E=H, C 1 -C 30 -alkyl, C 5 -C 12 -cycloalkyl or C 6 -C 30 -aryl, and n=2, 3 or 4, and Y and Z are each independently H, C 1 -C 30 -alkyl or -(A-O) x , with compounds which contain at least one acyl group, in middle distillates which comprise at least one ashless nitrogen-containing detergent additive A) which is an oil-soluble amphiphilic compound which comprises at least one alkyl or alkenyl radical which is bonded to a polar group, where the alkyl or alkenyl radical comprises 10 to 500 carbon atoms and the polar group comprises 2 or more nitrogen atoms, comprising the step of nucleating a paraffin crystallization with at least one oil-soluble compound B) selected from substantially linear hydrocarbons having at least 20 carbon.