Abstract: The present invention relates to a low-temperature additive for fuel oils having a sulfur content of less than 50 ppm, comprising i) at least one oil-soluble amide-ammonium salt of a polycarboxylic acid with a mono- and/or dialkylamine (A) and ii) 5-100% by weight, based on the amount of amide-ammonium salt (A), of an oil-soluble amine (B), and iii) 0.1 to 10 parts by weight, based on the amount of amide-ammonium salt (A), of a resin formed from at least one aromatic compound bearing an alkyl radical and an aldehyde and/or ketone (D).

Abstract: The invention relates to a method for adjusting an extrusion die in an extruder by recording at least one master flow curve (40, 41) in a first extruder to which the extrusion die is optimized, in which curve the volume flow is entered over the pressure, which master flow curve (40, 41) is obtained in a measuring channel (20) which branches off in the extruder, the extrusion die or in any interposed adapter part from the flow channel (4), and the repeated recording of flow curves (30, 31) in the same or similar measuring channels (20) as in the first extruder after the assembly of the extrusion tool in the extruder to be checked and adjusted, and the purposeful change of process parameters for such a time until the flow curves (30, 31) correspond to the master flow curves (40, 41) within predetermined tolerance ranges.

Abstract: The invention relates to a method for adjusting an extrusion die in an extruder by recording at least one master flow curve (40, 41) in a first extruder to which the extrusion die is optimized, in which curve the volume flow is entered over the pressure, which master flow curve (40, 41) is obtained in a measuring channel (20) which branches off in the extruder, the extrusion die or in any interposed adapter part from the flow channel (4), and the repeated recording of flow curves (30, 31) in the same or similar measuring channels (20) as in the first extruder after the assembly of the extrusion tool in the extruder to be checked and adjusted, and the purposeful change of process parameters for such a time until the flow curves (30, 31) correspond to the master flow curves (40, 41) within predetermined tolerance ranges.