Adipic Acid → Hexanedioic acid, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, octadecanoate

Participants

Reaction Steps

As in Example A, 76.2 g (0.56 mole) pentaerythritol and 321.3 g (1.19 mole) technical stearic acid were reacted for 2 hours at 200° to 210° C. in the presence of 0.25 g tin powder. After the addition of 71.5 g (0.49 mole) adipic acid and 0.25 g tin powder, the reaction mixture was heated for another 16 hours to 200°-210° C. under a pressure of from 15 to 16 mbar. After the addition of bleaching earth, filtration under pressure at 90° C. and cooling, the pentaerythritol adipate stearate (8:7:17) (material I; 367 g) was present as a yellow-tinged, brittle, wax-like mass (dropping point 55.0° C.; acid number 6.9; saponification number 281.1; hydroxyl number 15.9).

Provenance & Evidence