John O Kapusta

US Patent:

5919517, Jul 6, 1999

Filed:

May 5, 1997

Appl. No.:

8/851337

Inventors:

Thomas L. Levendusky - Greensburg PA
Robert B. Larsen - Maryville TN
Vincent J. Downard - New Kensington PA
Roy B. Steidley - Oakmont PA
Dawn A. Armfield - Knoxville TN
Paul H. Fournier - Knoxville TN
John B Kapusta - Maryville TN
Jeffrey B. Pezick - Louisville TN

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B05D 100

US Classification:

427211

Abstract:

A method and apparatus for extrusion coating both sides of a metal strip. A metal strip, such as aluminum alloy strip, is moved through a pre-conditioner, two extrusion dies, a post-heater and a cooling system. Both sides of the strip are coated with thin coatings of thermoplastic polymers. The coated metal strip is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.