Formaldehyde → Phenoaldehyde

Participants

Reaction Steps

Into a 300 ml flask are charged pure methacresol (32.4 g, 0.3 mol), 37% formalin (48.6 g, 0.6 mol) and a 10 N-NaOH aqueous solution (3 ml, 0.03 mol), and the mixture is reacted at 70° C. for 3 hours. To the mixture is further added resorcinol (77 g, 0.7 mol), and the mixture is further reacted at 50° C. for 3 hours. After completion of the reaction, water is distilled off at 120° C. under reduced pressure (reduced degree: 15 mmHg) to give cresol/resorcinol/formaldehyde co-polycondensate resin having a softening point of 92° C. (Resin W).

Provenance & Evidence