FIELD: chemistry.
SUBSTANCE: composition comprises: (a) cycloaliphatic epoxy resin, (b) epoxy resin comprising oxazolidone ring, (c) reaction product of (i) anhydride compound and (ii) polyol and (d) an anhydride hardener. A curable epoxy resin composition is obtained by mixing these components. The composite comprises reinforcing fiber embedded in thermosetting resin, where the thermosetting resin is the reaction product for curable epoxy resin composition.
EFFECT: invention provides a stable curable composition, without any phase separation, after curing, mechanical properties selected from tensile, flexural properties, and value of Tg are improved.
14 cl, 2 tbl, 2 ex
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