Invention Grant
- Patent Title: Chromium alloy coating with enhanced resistance to corrosion in calcium chloride environments
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Application No.: US12409629Application Date: 2009-03-24
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Publication No.: US09765437B2Publication Date: 2017-09-19
- Inventor: Roderick D. Herdman , Stacey Handy , Trevor Pearson , Toshiyuki Yamamoto , Kotaro Ishiwata , Masahiro Hara , Tatsuya Nishiyama
- Applicant: Roderick D. Herdman , Stacey Handy , Trevor Pearson , Toshiyuki Yamamoto , Kotaro Ishiwata , Masahiro Hara , Tatsuya Nishiyama
- Agency: Carmody Torrance Sandak & Hennessey
- Main IPC: C25D3/06
- IPC: C25D3/06 ; C25D3/10 ; C25D5/10 ; C25D5/12 ; C25D5/34 ; C23C28/02 ; C25D5/14

Abstract:
The invention consists of a chromium electroplating solution comprising a chromium electroplating solution comprising: (1) a water soluble trivalent chromium salt; (2) at least one complexant for trivalent chromium ions; (3) a source of hydrogen ions sufficient to create a pH of from 2.8-4.2; (4) a pH buffering compound; and (5) a sulfur-containing organic compound. The chromium electroplating solution is usable in a method for producing an adherent metallic coating on a decorative article, such coating having enhanced resistance to corrosion in environments containing calcium chloride.
Public/Granted literature
- US20100243463A1 Chromium Alloy Coating with Enhanced Resistance to Corrosion in Calcium Chloride Environments Public/Granted day:2010-09-30
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