Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1986-04-10
1987-12-29
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428287, 428418, 428458, 162146, 1621573, 1621574, 1621575, 162149, 162206, 174110R, D21F 1100, D21H 512, B32B 1500, B32B 1700
Patent
active
047160756
ABSTRACT:
A culvert having a corrosion resistant composite coating and a method of producing the corrosion resistant composite coating. The coating method is for use in a conventional hot dip coating line of the type wherein a steel strip, having been appropriately pretreated so as to be at or above the coating temperature and have its surface free of oxides, is caused to pass through a bath of molten coating metal. A fibrous aramid paper is bonded to the surface of the steel strip by pressing the fibers into the molten coating layer immediately after the steel strip exits the coating bath. The steel strip may be fabricted into construction products such as culvert which may be further protected with bituminous type coatings.
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Burris James L.
Campbell Herbert F.
Christ Christy
Fields Gayle P.
Armco Inc.
Bunyard R. J.
Fillnow L. A.
Johnson R. H.
Lesmes George F.
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