| 摘要 |
1282563 Coated wire BAKELITE XYLONITE Ltd 18 July 1969 [19 July 1968] 34509/68 Heading B2E [Also in Division C3] An electrical conductor, e.g. copper wire, is coated by extruding onto it a cellular material made by expanding a thermoplastic resin with a blowing agent comprising a mixture of azodicarbonamide and trihydrazino-sym-triazine. In example 1 a copper wire was coated with cellular polyethylene.
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