| 摘要 |
<p>1284031 Coated products OMNIUM DE PROSPECTIVE INDUSTRIELLE 24 Feb 1970 [12 March 1969] 8779/70 Heading B2E A substrate, which may be of wood, is coated by applying to a surface thereof a salt-coagulable polyamide containing acidic composition usually as a paste and coagulating the composition by application of a coagulant salt to the coated substrate, the salt being of a weaker acid than that of the acidic composition. The acid of the coating composition may be HCl and the coagulant may be mono- or di-ammonium phosphate. The coating composition may also contain an acid dye or pigment.</p> |
