Graftech International Holdings Inc.

David J Stuart

Thomas William Weber

Jeremy Hager Klug

Bradley E Reis

Jeffrey John Gough

Lawrence K Jones

Zdenka Brunovska

Suha M Yazici

Franco Frate

Robert Angelo Mercuri

Daniel Witold Krassowski

Jeffery John Gough

A method for preparing resin-impregnated graphite articles, including providing a sheet of compressed particles of exfoliated graphite having two major surfaces; impregnating the sheet with a first resin system to form a resin-impregnated sheet; surface treating the resin-impregnated sheet to form at least one structure on at least one of the major surfaces of the sheet to form a surface treated sheet; and treating the sheet with a second resin system.

Dimensionally stable, leak-free graphite substrate

A substrate useful for the formation of, inter alia, a flow field plate for a proton exchange membrane fuel cell, the substrate formed of at least one resin-impregnated sheet of compressed particles of exfoliated graphite comprising two major surfaces, the substrate having an active area with flow field channels thereon, the sheet of compressed particles of exfoliated graphite having a local web thickness in at least about 50% of its active area that is no more than about 55% greater than the minimum web thickness of the active area of the substrate.

Uniform graphite plate

Growing community of inventors

North Ridgeville, OH, United States of America

David J Stuart