摘要 |
Described are novel thermosetting epoxy resin compositions suitable for making cured resins, prepregs and stiff, tough thermoset composites. The thermosetting compositions comprise a polyepoxide component, an amine hardener and a specified amount of certain aromatic oligomers containing functional groups which are reactive with the polyepoxide and/or hardener under curing conditions for the composition. The cured resins have a multiphase morphology which comprises at least one glassy continuous phase and at least one glassy discontinuous phase and have a fracture toughness, KIC, of at least 1.0 MPam1/2. |
申请人 |
HERCULES INC., WILMINGTON, DEL., US |
发明人 |
CHU, SUNG GUN, WILMINGTON DELAWARE 19808, US;JABLONER, HAROLD, NEW CASTLE DELAWARE 19720, US;SWETLIN, BRIAN JOSEPH, WILMINGTON DELAWARE 19809, US |