| 摘要 |
1536238 Coated substrates MORTONNORWICH PRODUCTS INC 2 June 1977 23516/77 Heading B2E [Also in Division Cl] An acid hydrosol composition capable of self-electroplating onto metals higher than H 2 in the electro-motive series and onto non- metallic substrates comprises (a) H 2 O; (b) an acid which is HCl, HNO 3 , H 3 PO 4 or CH 3 COOH; (c) at least one metal silicate which is hydrous Mg silicate or a Na or K meta silicate or orthosilicate in which the M 2 O : SiO 2 ratio is 1:1 to 2:1 and optionally, (d) MgO or Mg(OH) 2 and (e) B 2 O 3 or H 3 BO 3 . Examples disclose the coating of silicon steel, carbon steel, nickel or aluminium, drying the coating and then annealing at 1200-1600‹F. Non-metallic substrates specified are porcelain, glass, wood, paper, cotton, synthetic resin and hydratable oxides.
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