Coal tar enamel coated steel pipe and process for same
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United States of America Patent
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Apr 24, 2001
Issued Date -
N/A
app pub date -
Jan 13, 1998
filing date -
Dec 8, 1994
priority date (Note) -
Expired
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Abstract
Described is a preferred method for manufacturing a coal tar enamel-coated steel pipe, in which a primer coat of epoxy resin is applied to a preheated steel pipe, and coal tar enamel is applied to the primer coat prior to full curing of the latter. The resulting coated steel pipes, which also are described, exhibit excellent resistance to cathodic disbondment, heat and water.
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