| 摘要 |
<p>The binder contains the reaction products of (A) epoxy resins containing aromatic groups, of low molecular weight, with an equivalent epoxy weight lower than 375, (B) aliphatic and/or alicyclic polyfunctional alcohols and/or carbonic acids with a molecular weight lower than 350, (C) optionally, up to 60 % by weight, based on the total binder of polyfunctional alcohols, carbonic acids and/or SH compounds with a molecular weight from 500 to 5000 and (D) primary, secondary and/or tertiary amines and/or their salts or a sulphide-acid or phosphine-acid mixture, the reaction product between A and B having a content of aromatic groups, calculated as phenylene groups, from 10 to 45 %. The binder allows the obtaining of a thicker layer during the electrophoretic lacquering.</p> |
