| abstract |
Mixts. for prodn. of anhydride-hardened epoxide networks combining improved strength with high toughness comprise (A) a linear diglycidyl cpd. of formula (I), opt. together with further di-, tri- or tetraglycidyl cpds.; (B) a dicarboxylic anhydride; and opt. also (C) an accelerator and other additives. In (I), R1-4 = H, halogen or 1-6C alkyl; and X = a bond, (CH2)2, -CH(Me).CH2-, -CH(Me).CH(Me)-, -CH=CH-, -N=N-, -CH=CH(Me)-, -CH=N-, -O.CH2- or -S.CH2-. |