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:
Feb. 17, 1998
Filed:
Nov. 21, 1996
Applicant:
Inventors:
Nicholas M Martyak, Doyletown, PA (US);
John E McCaskie, Bedminster, NJ (US);
Assignee:
Atotech USA, Inc., , NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
205305 ; 205308 ; 205311 ; 205313 ; 205314 ;
Abstract
A high current density electrogalvanizing process and composition are disclosed for reducing high current density dendrite formation and edge burn and controlling high current density roughness, grain size and orientation of a zinc coating obtained from a zinc sulfate aqueous acidic electrogalvanic coating bath. The composition comprises a high molecular weight polyoxyalkylene glycol grain refining agent in combination with a sulfonated condensation product of naphthalene and formaldehyde which is used as an antidendritic agent.