The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1983
Filed:
May. 20, 1982
Carol W Skimin, Mayfield Hts., OH (US);
The Harshaw Chemical Company, Cleveland, OH (US);
Abstract
A bright acid zinc plating bath uses a surfactant or wetting agent having the general formula C.sub.n H.sub.2n+1 (OCH.sub.2 CH.sub.2).sub.x OCH.sub.2 COOH wherein n is either 8 or 9, and wherein between 30 and 70% of the surfactant contains between 17 and about 21 ethylene oxide groups and 70-30% contains between about 9 and about 12 ethylene oxide groups. When used with organic brighteners, the blend of surfactants permits the electrodeposition of a bright layer which resists the formation of haze or blush which can occur when a plated part is flexed or is subjected to elevated temperatures encountered, e.g., upon curing of a protective lacquer coating.