Isocyanato-isocyanurates, process for the production thereof...

C - Chemistry – Metallurgy – 07 – D

Patent

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400/7402, 260/24

C07D 251/34 (2006.01) C08G 18/79 (2006.01)

Patent

CA 1180333

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the preparation of novel isocyanato-isocyanurates by the catalytic trimerization of a mixture of hexamethylene diisocyanate and l-isocyanato-3,3,5-trimethyl-5-isocyana- tomethyl-cyclohexane in a mole ratio of about 1:4 to 4:1, and to the products produced therefrom. The present invention also relates to the use of these products, optionally in blocked form, as the isocyanate component in ?olyurethane lacquers.

384664

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