| 摘要 |
<p>The plates are produced by applying onto an insulating base (made from phenoplast, aminoplast or epoxy resins) a continuous layer of a condensation resin containing a monomeric or polymeric compound(s) having an ester group(s); then subjecting this compound(s) to alkaline saponification and leading it out from the resin. Subsequently the plate is sensitized, activated and metallized by known methods (screen-printing can be applied). The spots from which the saponified ester groups have been removed present good anchorage points for the metal coating. The electro-insulating properties of the plate are not impaired.</p> |
