| abstract |
FIELD: chemistry. n SUBSTANCE: invention describes a process for preparing urea grease. Process of producing urea grease includes one or more steps, in which the compounds of formula (I), (II) and (III): n (I), n (II), n (III), n where R 1 and R 2 selected from hydrocarbyls having from 1 to 30 carbon atoms, or R 1 and R 2 are linked and form a hydrocarbylene group containing from 1 to 30 carbon atoms, R 3 is selected from hydrocarbyl comprising from 2 to 30 carbon atoms, and R 4 is hydrocarbylene comprising from 2 to 30 carbon atoms; wherein at least one of the reaction steps is carried out in the presence of base oil. n EFFECT: described method of production is carried out in the presence of a base oil and eliminates the use of diisocyanate reagents. n 10 cl, 1 tbl, 4 dwg, 4 ex |