Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Depositing predominantly alloy coating
Reexamination Certificate
2011-05-10
2011-05-10
Tran, Thao T. (Department: 1787)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Depositing predominantly alloy coating
C205S239000, C205S263000, C106S001230
Reexamination Certificate
active
07938948
ABSTRACT:
To develop stable, non-cyanide silver and silver alloy plating baths. The present invention is a silver and silver alloy plating bath, comprises: (A) a soluble salt, comprising a silver salt or a mixture of a silver salt and a salt of a metal selected from the group consisting of tin, bismuth, cobalt, antimony, iridium, indium, lead, copper, iron, zinc, nickel, palladium, platinum, and gold; and (B) at least one aliphatic sulfide compound comprising a functionality selected from the group consisting of an ether oxygen atom, a 3-hydroxypropyl group, and a hydroxypropylene group, with the proviso that the aliphatic sulfide compound does not comprise a basic nitrogen atom.
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Nawafune Hidemi
Nishikawa Tetsuji
Obata Keigo
Takeuchi Takao
Tsuji Kiyotaka
Daiwa Fine Chemicals Co., Ltd.
Global IP Counselors, LLP
Ishihara Chemical Co., Ltd.
Tran Thao T.
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