Polyoxyalklene compounds terminated with ketone groups for use a

Details Polyoxyalklene compounds terminated with ketone groups for use a Polyoxyalklene compounds terminated with ketone groups for use a

1993-06-28

1994-02-01

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly alloy coating

205254, 205302, 205303, 106 105, C25D 332, C25D 356

Patent

active

052829537

ABSTRACT:
Baths and methods for the electroplating of tin, tin-lead, tin-antimony, and/or tin-bismuth are described. Specifically, electrodeposition solutions, based on alkanesulfonic acids, soluble metal salts, other additives, and at least one nonionic surfactant terminated with a ketone group, have been developed. The use of ketone (e.g., --OCH.sub.2 COCH.sub.3) terminated polyoxyalkylene surfactants results in electrodeposition solutions with reduced foam, and the tin and tin alloy electrodeposits from such plating baths are of superior quality.

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