| 摘要 |
<p>Unsaturated hydantoin derivatives of the formula or where R1 and R2 are for example alkyl, R3 is vinyl, allyl, alkylene, substituted alkylene or polyvalent aralkyl, R4 is vinyl or allyl and n is 1 to 3, with the proviso that, when n is 1, R3 and R4 cannot both be vinyl, are coagents for curing polymeric compositions to improve their physical, chemical and electrical properties. These coagents are particularly useful in crosslinking PVC, polyethylene, chlorinated polyethylene and poly(ethylene/vinyl acetate) compositions.</p> |
