| abstract |
NEW MATERIAL:A compound of formula I (the ring R is formula II or III). n EXAMPLE: 1,3,5-Tris(isocyanatomethyl)benzene. n USE: An intermediate for the synthesis of polyurethane resin having improved weather resistance, and capable of giving an excellent solventless or high solid urethane coating material. n PROCESS: A triamine compound of formula IV, e.g. 1,3,5-tris(aminomethyl)benzene, is subjected to phosgenation in an organic solvent, e.g. chlorobenzene, at -20W 180°C. The starting material of formula IV is novel, and obtained by hydrogenating 1,3,5-triscyanobenzene in the presence of a catalyst, e.g. Raney cobalt, or by futher hydrogenating the hydrogenated compound in the presence of a catalyst. n COPYRIGHT: (C)1980,JPO&Japio |