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. 25, 1990
Filed:
Jul. 31, 1989
Applicant:
Inventor:
John V Roberts, Newark, DE (US);
Assignee:
Rodel, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C / ; C23F / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
156636 ; 156639 ; 156645 ; 156656 ; 156664 ; 156903 ; 252 792 ;
Abstract
The present invention relates to a method of polishing a metal surface using an aqueous polishing composition for metal surfaces comprising water, an abrasive agent, such as sluminum oxide, cerium oxide, zirconium oxide, tin oxide, silicon dioxide, silicon carbide, titanium dioxide and titanium carbide and a salt, or combination of salts, such as aluminum chloride, zirconyl nitrate, zirconyl sulfate, cerium nitrate, aluminum nitrate, aluminum bromide, aluminum iodide, aluminum chloride, zirconyl chloride, tin chloride, aluminum perchlorate, magnesium chloride, zinc chloride, magnesium perchlorate and iron chloride.