C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/05 (2006.01) C23C 22/42 (2006.01)
Patent
CA 2171238
Compositions and methods for passivating galvanized metal sur- faces are disclosed. The addition of a paraffin wax, prererably emulsified with nonionic surfactants to commercial passivation treatment (chrome or non-chrome) enhances passivation.
Harpel William L.
Ouyang Jiangbo
Betzdearborn Inc.
Borden Ladner Gervais Llp
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