| 摘要 |
<p>BISMALEIMIDES AND PREPREG RESINS THEREFROM I Described herein are novel bismaleimides and prepregable resin compositions comprising these bismaleimides and one or more liquid coreactants and optionally, one or more other additives. In accordance with the present disclosure there are compositions including (i) bismaleimides of formula (II), < IMG > II wherein n is 0 to 4, preferably 0 to 2, and R is the residuum of a dihydric phenol, such as resorcinol, bisphenol A, hydroquinone, 4,4'-dihydroxydiphenyl sulfone, 4,4'-dihydroxy-3,3',5,5'-tetramethyldiphenyl sulfone, 4,4'-dihydroxybenzophenone, 3,3',5,5'-tetramethylbis-phenol A, 3,4'-dihydroxybenzophenone, 4,4'-diphenol, chlorohydroquinone, methylhydroquinone and the like; and (ii) prepregable resin compositions comprising II and one or more liquid coreactants and optionally, other additives. These compositions may optionally contain a structural fiber as well.</p> |
