| abstract |
PCT No. PCT/EP92/01307 Sec. 371 Date Dec. 20, 1993 Sec. 102(e) Date Dec. 20, 1993 PCT Filed Jun. 11, 1992 PCT Pub. No. WO93/00461 PCT Pub. Date Jan. 7, 1993.A manufactured stannous sulfate granulate is suitable for electrolytically coloring anodized aluminum with metallic salts, where the granulate particles have a linear extension from 0.1 to 10 mm. Also disclosed are a process for manufacturing the same and using it for electrolytically coloring anodized aluminum with metallic salts. The manufactured stannous sulfate granulate is characterized by technical advantages, such as storage stability, easy dispensibility, and absence of dust, compared to conventionally used stannous sulfate powders. |