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AssigneeMorton International, Inc.
InventorsKenneth Edmond Jasenof, Ronald J. Lewarchik, Douglas Allen Stumpfl, David Kenneth Black
Estimating the term…
A polyester-based coating composition capable of forming a striated pattern on a metal surface at a film thickness less than half of that of PVC plastisol films is provided by a thixotropic composition having a thix index of from about 1.5 to about 3 and comprising a hydroxy-functional polyester, a thixotropy-inducing rheologic agent and curing agent. The striated coating is applied to sheet metal in a coil coating operation by introducing the composition into a paint pan of a coil coater, transferring said composition from said paint pan to an applicator roll by rotating a pick-up roll in contact with the composition and with said applicator roll; continuously withdrawing a sheet of metal from a coil thereof and coating said sheet by contacting it with the applicator roll; curing the coating on said sheet by passing the sheet through an oven at an elevated temperature; and continuously rewinding said sheet into a coil.
Sheet metal having a continuous coating characterized by a surface pattern of striations with peaks and valleys and having an average dry thickness of from about 1 mil to about 3 mils wherein the striations are characterized by peaks and valleys and the peaks are from about 0.3 mils to about 2.5 mils higher than the valleys, said coating having a composition comprising:
Aluminum siding having a continuous coating characterized by a surface pattern of striations with peaks and valleys and having an average dry thickness of from about 1 mil to about 3 mils wherein the striations are characterized by peaks and valleys and the peaks are from about 0.3 mils to about 2.5 mils higher than the valleys, said coating having a composition comprising:
Dependencies are inferred from the claim text.