Abstract
First 20 papers of the K. Hultzsch school on the phenolformaldahyde resins are listed up and then 6 papers of them, related to the quinone methids theory, are abstracted. Secondly the constitutional formulae of “Resite”, developed by F. Raschig, M. Koebner, N. J. L. Megson, K. H. Meyer, H. Mark and R. Houwink, are mentioned historically. While these formulae have only methylene bridges, A. Zinke, H. v. Euler and K. Hultzsch postulated the formation of other bridges-i.e. dimethylene-ether, quinone methid, diphenyl ethaneetc. Mentioning the point aimed at the research of those three schcools, the present author sets a high value on their originality.
