HARZZUBEREITUNG FÜR PORÖSE GEGENSTÄNDE UND VERFAHREN ZUR BEHANDLUNG DES ABFALLWASSERS AUS DEM IMPRÄGNIERVERFAHREN.

摘要

A curable composition, useful for impregnating porosity of porous articles, comprising acrylate monomer, heat- and/or anaerobic-cure initiator, and non-peroxy, actinic radiation photoinitiator. A method of treating waste water produced by aqueous washing of a porous article to remove excess impregnant therefrom, wherein the impregnant comprises acrylate monomer and actinic radiation photoinitiator, includes the steps of exposing the waste water to actinic radiation polymerizingly effective for the monomer, and recovering the resulting polymer from the waste water to yield a polymer-depleted effluent which may be discharged to receiving waters.