| 摘要 |
<p>The object of the invention is to provide an anti-scaler for coating the polymerizing reactors for monomers, of the liquid types, obtained by means of the naphthols condensation with analdehydic cross-linking product, characterized by that: for obtaining the condensate a hydrosulphite is used; it contains hydrosulphite and/or radical bisulphites and/or bisulphite; the condensate is made in such a way that in absence of oxygen, it is in the form of liquid of clear transparent colour.</p> |
