FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing an uretonimine-modified isocyanate composition. The disclosed method includes producing an organic isocyanate composition having two or more isocyanate groups, reacting said polyisocyanate composition in the presence of a suitable catalyst to obtain a uretonimine-modified isocyanate composition having carbodiimide groups and uretonimine groups, and deactivating the catalyst by adding a certain amount of an oxalic acid monoalkyl ester halide.
EFFECT: method enables to obtain a uretonimine-modified isocyanate composition which is transparent, stable and does not change colour over time.
7 cl, 1 tbl, 4 ex
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