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. 14, 1992
Filed:
Dec. 26, 1989
Applicant:
Inventors:
Karl Wefers, Apollo, PA (US);
Gary A Nitowski, Natrona, PA (US);
Larry F Wieserman, Apollo, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
295274 ; 148253 ; 204 387 ; 413 19 ; 413 20 ; 430158 ; 430160 ;
Abstract
Disclosed is a food or beverage container or container panel comprised of an aluminum alloy body having an integral bottom and wall. An intermediate layer comprised of an aluminum oxide or aluminum hydroxide layer is bonded to the aluminum alloy body and a functionalized layer of an organo phosphonate, organo phosphinate or phosphate ester is bonded to the oxide or hydroxide layer. A polymer layer is bonded to the functionalized layer. The functionalized layer is comprised of the reaction product of phosphonic or phosphinic acid and/or phosphonic acid ester, for example.