| 摘要 |
PROBLEM TO BE SOLVED: To provide epoxy resin compositions which are thermally stable and offer cured products with improved properties, such as a lower viscosity and a high heat resistance compared to known cured products produced from known epoxy resins.SOLUTION: The present invention provides: an epoxy oxazolidone, including the reaction product of (a) a divinylarene dioxide and (b) an excess of a polyisocyanate, to provide an epoxy oxazolidone composition, where the composition has an oxazolidone selectivity greater than 40% relative to the total of the carbonyl compounds; a process for making the epoxy oxazolidone; and a curable epoxy resin composition including (i) the epoxy oxazolidone derived from a divinylarene dioxide, such as divinylbenzene dioxide (DVBDO), and a polyisocyanate, (ii) at least one curing agent, and/or (iii) a catalyst. |
