Process for the preparation of new poliisocianatos

摘要

Organic polyisocyanates which are a reaction product of an excess of an organic polyisocyanate and hydrocyanic acid have the formula O PARALLEL C OCN-R ANGLE R-NCO ¦¦ N N ¦¦ C----C PARALLEL PARALLEL ONX in which R represents an aliphatic C2 to C12 cycloaliphatic C4 to C15, aromatic C6 to C15 or araliphatic C7 to C15 hydrocarbon radical, and X represents hydrogen or a group of the formula -C-NH-R- NCO PARALLEL O wherein R has the same meaning as above.