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. 21, 1999
Filed:
Mar. 02, 1998
Edward M Musingo, Quakertown, PA (US);
Charles R Ike, Clarks Green, PA (US);
Bulk Chemicals, Inc., Reading, PA (US);
Abstract
A method and composition for forming a zinc phosphate coating on a metal surface utilizes an aqueous solution of zinc, phosphate, nitrate, nickel, a compound containing a group IV-B element, and a fluosurfactant. The method involves contacting the metal surface with such a bath under process conditions such that a coating is formed on the metal surface. Preferably, the compound containing a group IV-B element is a fluoacid of titanium, zirconium, or hafnium. More preferably, the fluoacid is fluotitanic acid. The fluosurfactant may be any compatible fluosurfactant but preferably is an amine perfluoroalkyl sulfonate or a non-ionic, fluorinated alkyl polyoxethylene ethanol or a combination of both. The coating serves to improve the ability of the metal to retain a lubricant on its surface (for cold working of the metal), to improve corrosion resistance, and to improve paint adhesion.