| 摘要 |
<p>Bath serving for the stratification of conductible substrates: the bath contains as an adjuvant a quaternary ammonium salt having the following general formula:$(10,)$wherein R1 is H or CH¿3, R?2 is H or C¿n?H2n+1, R?3¿ is H or$(5)$ R4 is CH¿3? or CnH2n+1; X represents the anion of an inorganic or organic acid and n represents an integer from 10 to 18. The invention relates particularly to the utilization of ammonium salts mentionned hereabove as adjuvants for said baths. The invention also relates to a stratification method. By applying the invention, there are obtained, as stratified deposit, thicker films.</p> |
