| 摘要 |
<p>Bisimide resin-forming mixtures having improved fracture toughness comprise a mixture of, a) a bisimide of the general formula (I) <CHEM> in which B represents a divalent radical containing a carbon-carbon double bond and A is a divalent radical containing at least two carbon atoms and b) a polyisocyanate of the general formula (II) D(NCO)x (II) in which x has a value of between 2 and 4 and D stands for an x-valent radical. The molar ratio of a:b is in the range 5.25 to 100.</p> |
