Joseph B Guthrie

US Patent:

7371432, May 13, 2008

Filed:

Nov 25, 2003

Appl. No.:

10/721484

Inventors:

Joseph D. Guthrie - Murrysville PA, US
Paul B. Schultz - Export PA, US
Thomas L. Levendusky - Greensburg PA, US
Bob Larsen - Knoxville TN, US

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

B05D 3/00
B05D 3/06
C08J 7/18
B65D 6/02
B65D 6/28
B65D 8/06

US Classification:

427331, 427551, 220623, 220622

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.

US Patent:

7732068, Jun 8, 2010

Filed:

Aug 28, 2007

Appl. No.:

11/846483

Inventors:

Thomas L. Levendusky - Greensburg PA, US
Luis Fanor Vega - Cheswick PA, US
Albert Askin - Lower Burrell PA, US
Joseph D. Guthrie - Murrysville PA, US
Kevin M. Robare - New Kensington PA, US
Clinton Zediak - Tarentum PA, US

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

B32B 15/04
B32B 5/18
C25D 11/08
C25D 11/18

US Classification:

428704, 428336, 4284722, 4283043, 428335, 148265, 148256, 205201, 205213, 205229

Abstract:

Aluminum alloy products comprising an aluminum alloy base and a sulfate-phosphate oxide zone integral therewith are disclosed. Methods of making the same are also disclosed.

US Patent:

8309237, Nov 13, 2012

Filed:

Aug 22, 2008

Appl. No.:

12/197097

Inventors:

Thomas L. Levendusky - Greensburg PA, US
Albert L. Askin - Lower Burrell PA, US
Joseph D. Guthrie - Murrysville PA, US
Luis Fanor Vega - Cheswick PA, US
Kevin M. Robare - New Kinsington PA, US
Clinton Zediak - Tarentum PA, US
Wilson C. Lee - Sterling Heighs MI, US
Jaskirat Sohi - Beechwood OH, US

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

B32B 15/04
B32B 5/18
C25D 11/08
C25D 11/18

US Classification:

428704, 428336, 4284722, 428335, 4283044, 148265, 148256, 205201, 205213, 205229

Abstract:

Aluminum alloy products comprising an aluminum alloy base and a sulfate-phosphate oxide zone integral therewith are disclosed. Methods of making the same are also disclosed.

US Patent:

20030079333, May 1, 2003

Filed:

Oct 29, 2001

Appl. No.:

10/038266

Inventors:

Joseph Guthrie - Murrysville PA, US
Paul Schultz - Export PA, US
Thomas Levendusky - Greensburg PA, US
Bob Larsen - Maryville TN, US

International Classification:

B23P017/00

US Classification:

029/527200

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 polymer selected from polyolefins, anhydride modified polyolefins, epoxies, and phenoxies. The polymer coating on the composite is then irradiated with an electron beam. The metal sheet preferably comprises an aluminum alloy and the polymer coating preferably comprises maleic anhydride modified polyropylene.

US Patent:

20040043158, Mar 4, 2004

Filed:

Sep 4, 2002

Appl. No.:

10/233988

Inventors:

Paul Schultz - Export PA, US
Joseph Guthrie - Murrysville PA, US
Sherri McCleary - Apollo PA, US
James Marinelli - Murrysville PA, US
Francine Bovard - Pittsburgh PA, US

International Classification:

B05D001/36

US Classification:

427/407100

Abstract:

A weather-resistant polymeric coating is applied to an aluminum alloy body by coating a surface portion of the body with a primer composition comprising a vinylphosphonic acid-acrylic acid copolymer to form a primer layer, followed by coating the primer layer with a weather-resistant polymeric coating composition. The aluminum alloy body preferably comprises an aluminum alloy extrusion containing an alloy of the AA5000 or AA6000 series. The coating composition preferably contains a cyano modified saturated carboxylated polyester or a zinc rich epoxy, each preferably applied by powder coating.

US Patent:

20100200415, Aug 12, 2010

Filed:

Apr 23, 2010

Appl. No.:

12/766733

Inventors:

Thomas L. Levendusky - Greensburg PA, US
Luis Fanor Vega - Cheswick PA, US
Albert Askin - Lower Burrell PA, US
Joseph D. Guthrie - Murrysville PA, US
Kevin M. Robare - New Kensington PA, US
Clinton Zediak - Tarentum PA, US

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

C25D 11/18
C25D 11/16

US Classification:

205201

Abstract:

Aluminum alloy products comprising an aluminum alloy base and a sulfate-phosphate oxide zone integral therewith are disclosed. Methods of making the same are also disclosed.

US Patent:

60307102, Feb 29, 2000

Filed:

Jun 30, 1997

Appl. No.:

8/885656

Inventors:

Gary A. Nitowski - Lower Burrell PA
Joseph D. Guthrie - Murrysville PA
Joseph P. Harenski - Export PA
Daniel C. Johnson - Apollo PA

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

B32B 1504
B32B 1508
B05D 136

US Classification:

428457

Abstract:

Aluminum alloy sheet is provided with a primer layer comprising a reaction product of aluminum oxide or hydroxide and a vinylphosphonic acid-acrylic acid copolymer, coated with a polymer coating composition containing polyvinyl chloride or an epoxy. The polymer coated aluminum alloy sheet is shaped into container bodies for food containers or container end panels for aluminum food and beverage containers.

US Patent:

60200308, Feb 1, 2000

Filed:

May 7, 1998

Appl. No.:

9/074136

Inventors:

Joseph D. Guthrie - Murrysville PA
Alfred M. Dennis - Newburgh IN

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B05D 136
B05D 138

US Classification:

427345

Abstract:

An aluminum alloy substrate is pretreated with an aqueous solution containing an organophosphorus compound, preferably a vinyiphosphonic acid-acrylic acid copolymer, before coating the substrate with a polymer. Passing the substrate through the solution contaminates it with aluminum and other elements. The pretreatment solution is rejuvenated by removing aluminum with a cation exchange resin that preferably contains a styrene-divinyl benzene copolymer functionalized with sulfonate groups. Rinsing the substrate contaminates the rinse water with the copolymer. The rinse water is concentrated by reverse osmosis or membrane ultrafiltration and returned to the pretreatment solution.