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:
Jan. 02, 2001
Filed:
Dec. 26, 1997
Applicant:
Inventors:
James M. Marinelli, Murrysville, PA (US);
Sherri F. McCleary, Apollo, PA (US);
John V. Costrini, Apollo, PA (US);
Gary A. Nitowski, Lower Burrell, PA (US);
John T. Siemon, Cheswick, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 3/500 ;
U.S. Cl.
CPC ...
B21D 3/500 ;
Abstract
An aluminum alloy sheet, plate, casting or extrusion having a surface layer containing magnesium oxide and aluminum oxide is cleaned with an acidic solution. The cleaned component has an aluminum oxide layer that is pretreated with a phosphorus-containing organic acid to form a functionalized layer. A layer of polymeric adhesive is applied to the functionalized layer, and the adhesive layer is joined to a metal support structure to form a vehicle assembly.