| 摘要 |
<p>1504226 Lacquering moulded plastics surfaces BAYER AG 21 Sept 1976 [24 Sept 1975] 39057/76 Heading B2E [Also in Division C3] The surface of a moulding is rendered suitable for lacquering, the said moulding being a polyisocyanate-based plastics moulding having a compact surface and produced using one or more internal and/or external mould release agents, by contacting at least a portion of at least one surface of the moulding with a solution of permanganate in water and/or an organic solvent.</p> |
