Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1985-04-17
1987-04-07
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
428209, 428901, 523445, 523458, 523466, 523468, 525113, 525389, 525396, 525415, 525423, 525438, 525468, 525504, 525523, 525525, 525526, 525906, 528 90, 528 93, 528109, 528119, 528129, 528315, C08L 6300, C08K 304, C08G 5950
Patent
active
046562087
ABSTRACT:
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, K.sub.IC, of at least 1.0 MPam.sup.1/2.
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Chu Sung G.
Jabloner Harold
Swetlin Brian J.
Hercules Incorporated
Lilling Herbert J.
Ross Jr. Edmund C.
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