Extended epoxy resins based on cyclohexen-1-yl methylene diphenol or bicyclo(2.2.1)hepten-1-yl diphenol derivatives

摘要

The invention relates to compounds of the formula I or II IMAGE (I) IMAGE +TR IMAGE IMAGE (II) IMAGE +TR IMAGE in which A is a radical IMAGE R1 is hydrogen or methyl, R2 is the radical of an aliphatic, cycloaliphatic, aromatic or araliphatic diol after both of the hydroxyl groups have been removed, R3, R4, R5 and R6 independently of one another are hydrogen, C1-C6alkyl, chlorine or bromine, R7 is a radical of the formula III, IV, V or VI IMAGE (III) IMAGE (IV) IMAGE (V) IMAGE (VI) R8, R10, R12 and R14 are hydrogen, C1-C6alkyl or phenyl, R9, R11, R13 and R15 are hydrogen or C1-C6alkyl and the average value of n (number average) is a number from 1 to 20, it being possible for the radicals R1 to R15, within a given molecule, to assume different meanings within the scope of the definitions given. These compounds or also the epoxidized intermediates of the formula X IMAGE (X) IMAGE in which R1 to R3 are defined above and R7 is a radical of the formula IV or VI can be processed to give cured products having a high glass transition temperature and a low tendency to discoloration.