pladeformet element for the manufacture of floors in kvaegstalde or similarBELBE H WROTHENBERGER LGOEBELT W
New resins type phenoplasts obtained from compounds phenolic and hardeners macromolecular carrying the functions of the aldehydesSummary the present invention relates to a new composition of thermosetting resins of the phenolic resin type used as binders in the materials. The production of this resin ...
A method for the production of curable, with resorcinol modified condensation products of aminoplasts forming compounds undaldehydenLENZ JOHANNSCHEUERMANN DR. HANS