| 摘要 |
<p>Diamines and bismaleinimides of general formula (I) in which R1 and R2 each denote H-atom or together denote the group -OC-CH-=CH-CO-, Y1 and Y2 denote independently of each other O or S, and Het denotes a 5-membered heterocycle with 2 or 3 heteroatomes, and possibly incompletly hardened, possibly fiber-reinforced polyimides prepared therefrom.</p> |
