| 摘要 |
<p>Articles from transparent resins of the polystyrene series are made by enveloping desired portions of the surface of the moulded articles by a point consisting principally of cpds. of high m.w. contg. Cl or F, dispersing, as emulsifier, a solvent having a solubility perameter of 7.0-11.0, chosen from aromatic, chlorinated aromatic or alicyclic hydrocarbons, ketones and esters in water using a surfactant; putting the moulded articles in the emulsion contg. 2-30% solvent, then in hot water and in an active sol., submitting the moulded panel first to a non-electrolytic and then an electrolytic plating, to deposit a single metallic film on the surface of the panel except where coated by the paint.</p> |
