Multifunctional cooling additives for middle distillates, having an improved flow capability

摘要

The present invention relates to cooling additives for middle distillates, containing A) at least one polyester of formula (A1) wherein one of the radicals R1 to R4 represents a linear C16-C40 alkyl or alkenyl radical and the remainder of the radicals R1 to R4 represent, independently of one another, hydrogen or an alkyl radical having 1 to 3 C atoms, R5 is a C—C bond or an alkylene radical having 1 to 6 C atoms, R16 is a hydrocarbon group having 2 to 10 carbon atoms, n is an integer from 1 to 100, m is an integer from 3 to 250, p is 0 or 1, and q is 0 or 1, B) at least one copolymer of ethylene and of at least one ethylenically unsaturated ester, the copolymer having a melt viscosity, measured at 140 DEG C., of at most 5000 mPas, and C) at least one organic solvent.;

主权项

1. A cold additive for middle distillates comprising
A) at least one polyester of the formula (A1 in whichone of the R1 to R4 radicals is a linear C16-C40-alkyl or -alkenyl radical and the rest of the R1 to R4 radicals are each independently hydrogen or an alkyl radical having 1 to 3 carbon atoms,R5 is a C—C bond or an alkylene radical having 1 to 6 carbon atoms,R16 is a hydrocarbyl group having 2 to 10 carbon atoms,n is a number from 2 to 100,m is a number from 5 to 150,p is 0 or 1, andq is 0 or 1, B) at least one copolymer of ethylene and at least one ethylenically unsaturated ester, wherein the copolymer has a melt viscosity measured at 140° C. of not more than 5000 mPas and C) at least one organic solvent.