J. Gremmels et J. Karger-kocsis, Impact modification of thermosets - Addition of hygrothermally decomposed crosslinked polyurethane, KUNSTST-P E, 90(5), 2000, pp. 112
The impact modification of brittle thermosets with liquid rubber is relativ
ely expensive. An inexpensive alternative is to use hygrothermally decompos
ed polyurethane as the modifier. The process was tested with the aid of two
epoxy resin grades and compared with the conventional method.