Toluene 2,4-Diisocyanate → Diphenylmethane diisocyanate

Participants

Reaction Steps

The polyether segment is reacted with a diisocyanate, e.g., p-phenylene diisocyanate, m-phenylene diisocyanate, 2,4-toluene diisocyanate and isomers thereof, methylenebis(phenyl isocyanate), methylenebis(chlorophenyl isocyanate), and methylenebis(tolyl isocyanate) to produce an isocyanate-terminated prepolymer or oligomer. The toluene diisocyanates are preferred.

Provenance & Evidence