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:
Apr. 11, 1978
Filed:
Jun. 17, 1977
Applicant:
Inventor:
Edward George Tajkowski, Williamsville, NY (US);
Assignee:
Allied Chemical Corporation, Morris Township, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
204 / ; 4274 / ;
Abstract
Corrosion resistant anodized metal surfaces are produced by electrically oxidizing a metal such as aluminum or aluminum alloys to form an oxide layer of about 0.0002-0.001 inch, rinsing and sealing in a boiling aqueous solution of a polycarboxylic acid with perfluorinated portions such as ##STR1## wherein X is independently at each occurrence H or F, m and n are independently 0 to 10 and R.sub.f is C.sub.p F.sub.2p+1--where p i 6 to 24 or C.sub.q F.sub.2q+1 O--where q is 3-12.