Abstract: A process is disclosed for preparing amines by hydrogenating compounds with at least 3 cyano groups prepared by adding acrylonitrile to ammonia or primary amines at temperatures from 80.degree. to 200.degree. C. and pressures from 5 to 500 bars.

Abstract: A dispersion or solution of a free radical polymer, polycondensate or polyadduct, which consist of from 0.001 to 20% by weight of aldehyde groups --CHO or keto groups --CO--, contains, as a crosslinking agent, a compound having at least two H.sub.2 N--O---groups or oxime ether groups derived therefrom.

Abstract: A process for the preparation of 4-substituted imidazoles of the general formula ##STR1## in which R denotes C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.20 cycloalkyl, aryl, and C.sub.7 -C.sub.20 aralkyl,whereina) N-formyl-.alpha.-aminonitriles of the general formula I ##STR2## in which R has the meanings stated above and A stands for carbonyl, are reacted, at a temperature ranging from 20.degree. to 200.degree. C. and a pressure ranging from 20 to 500 bar, with hydrogen in the presence of hydrogenation catalysts andb) the resulting N-formyl-1,2-diamines of the general formula ##STR3## in which R and A have the meanings stated above and n stands for 0 or 1, are reacted over a cyclization/dehydrogenation catalyst at a temperature ranging from 200.degree. to 600.degree. C. and a pressure ranging from 0.001 to 5 bar.