| 摘要 |
<p>A curable composition suitable for use as a foundry binder contains an epoxidized fulvene of the formula: wherein each R1 and R2, individually, is hydrogen or a hydrocarbon containing 1 to 10 carbon atoms, or a hydrocarbon containing 1 or more oxygen bridges in the chain, or a furyl group, or are interconnected to form a cyclic group; each R3 and R6, individually, is hydrogen or methyl; and each R4 and R5, individually, is hydrogen or methyl or </p> |
