| US 7,541,095 B2 | ||
| Non-chromium containing black multi-layer coatings | ||
| Wan-Chu Wu, Kaohsiung (Taiwan); Wei-Liang Yang, Hsinchu (Taiwan); and Wen-Chi Chang, Hsinchu (Taiwan) | ||
| Assigned to Elisha Holding LLC, Moberly, Mo. (US); and Kismart Corporation, Taipei (Taiwan) | ||
| Filed on Oct. 26, 2007, as Appl. No. 11/925,319. | ||
| Claims priority of provisional application 60/855095, filed on Oct. 27, 2006. | ||
| Prior Publication US 2008/0102297 A1, May 01, 2008 | ||
| Int. Cl. B32B 15/00 (2006.01) | ||
| U.S. Cl. 428—446 [428/632; 428/633; 428/680; 428/450] | 25 Claims |
| 1. A coating for application upon a metallic substrate; the coating being a multi-layer coating system comprising: (a) a first layer which is deposited on the substrate and which comprises nickel, sulfur and at least one member selected from the group consisting of nickel oxide, nickel hydroxide, sulfur oxide and sulfur hydroxide and (b) a second layer which directly or indirectly overlays the first layer and comprises an inorganic silicate polymer comprised of silicon and oxygen. |