Coating processes – With post-treatment of coating or coating material
Reexamination Certificate
2008-05-13
2008-05-13
Fletcher, William Phillip (Department: 1762)
Coating processes
With post-treatment of coating or coating material
C427S551000, C220S623000, C220S622000
Reexamination Certificate
active
07371432
ABSTRACT:
A process for making a metal-polymer composites suitable for shaping into container end panels having improved resistance to feathering and angel hair formation. A polymer coating is applied to a metal sheet. The polymer coating includes at least one cured polymer selected from polyolefins, anhydride modified polyolefins, epoxies, and phenoxies. The polymer coating on the composite is then irradiated with an electron beam, thereby scissioning chains in the cured polymer. The metal sheet preferably comprises an aluminum alloy and the polymer coating preferably comprises maleic anhydride modified polyropylene.
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Guthrie Joseph D.
Larsen Bob
Levendusky Thomas L.
Schultz Paul B.
Alcoa Inc.
Fletcher William Phillip
Greenberg & Traurig, LLP
Sankus Mauri A.
Sellman Cachet I.
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