| 摘要 |
<p>4,4'-diaminodiphenylmethane and its derivatives are prepared by the synthesis and/or isomerization of appropriate products, with zeolites acting as catalysts; these catalysts, which are selected in accordance with the reaction to be effected, are zeolites based on Si, Al and B; Si, Al and Ti; Ti and Fe; ZSM-5; or Y zeolites.</p> |
| 申请人 |
ENIRICERCHE S.P.A., MAILAND/MILANO, IT;ENICHEM SYNTHESIS S.P.A., PALERMO, IT |
发明人 |
CLERICI, MARIO GABRIELE, SAN DONATO MILANESE MILAN, IT;BELLUSSI, GIUSEPPE, PIACENZA, IT;ROMANO, UGO, VIMERCATE MILANO, IT |
