Hitco Carbon Composites, Inc.

Kenneth A DeVane

Ramon B Fernandez

A process for the preparation of a carbon yarn product includes the steps of pyrolizing raw carbonaceous yarn comprising a plurality of carbon fibers, at a temperature above about 650&deg; F.; flexing the pyrolized yarn to substantially break fiber-to-fiber bonding between the fibers; and, exposing the yarn to a temperature sufficient to carbonize the pre-carbonized yarn to a final and higher carbon assay. A flexible yarn element (,) includes a plurality of carbon filaments (,) wherein each filament (,) is in contact with at least one other filament,. A sizing material at least partially coats the plurality of filaments (,), wherein the sizing material of each filament (,) is substantially separated from the sizing material of the at least one other filament (,) in contact therewith.

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Huntington Beach, CA, United States of America

Kenneth A DeVane