Building material coating
First Claim
1. A coated metal material coated with a low-reflecting, highly corrosive-resistant, two-phase tin-zinc metallic alloy coating, said coating comprising at least 0.3 weight percent nickel, at least 0.05 weight percent metallic stabilizer selected from the group consisting of antimony and bismuth, at least 15 weight percent tin and at least 30 weight percent zinc wherein said tin content plus said zinc content exceeds 80 weight percent of said coating.
3 Assignments
0 Petitions
Accused Products
Abstract
A corrosion-resistant colored architectural material which is essentially lead free and is not highly reflective. The coating on the material is a two-phase metallic coating comprised of a large weight percentage of zinc and a relatively large weight percentage of tin. The tin-zinc coating may also include nickel and copper. The tin-zinc composition provides for both a highly corrosive-resistant coating which protects the surface of the architectural material from oxidation and also produces a gray, earth tone colored which is not highly reflective.
46 Citations
37 Claims
- 1. A coated metal material coated with a low-reflecting, highly corrosive-resistant, two-phase tin-zinc metallic alloy coating, said coating comprising at least 0.3 weight percent nickel, at least 0.05 weight percent metallic stabilizer selected from the group consisting of antimony and bismuth, at least 15 weight percent tin and at least 30 weight percent zinc wherein said tin content plus said zinc content exceeds 80 weight percent of said coating.
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16. A coated metal material formed of a carbon steel or stainless steel sheet metal roofing material coated with a low-reflecting, highly corrosion-resistant, two phase, tin-zinc metallic coating, said sheet metal including a nickel barrier between said metallic coating and said steel sheet, said metal coating comprising tin, zinc, nickel and at least 0.05 weight percent metal stabilizer selected from the group consisting of antimony and bismuth such that the coating includes:
space="preserve" listing-type="tabular">______________________________________ Tin 15.0-70.0% Zinc 30.0-85.0% Bismuth 0.0-1.7% Antimony 0.0-7.5% Iron 0.0-0.1% Lead 0.0-0.05% Nickel 0.3-1.0% Copper 0.0-2.0% ______________________________________- View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
- 26. A coated metal material coated with a low-reflecting, highly corrosion-resistant, multiple phase tin-zinc metallic coating, said coating comprising of at least about 0.1 weight percent copper, at least 15 weight percent tin wherein said tin content plus the zinc content exceeds 80 weight percent of said coating.
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36. A coated metal material coated with a low-reflecting, highly corrosive-resistent, two-phase tin-zinc metallic alloy by continuously passing said metal material through a bath of molten metal, said metallic alloy comprising zinc, at least 15 weight percent tin and at least 0.1 weight percent copper.
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37. A coated metal material coated with a low reflecting, highly corrosive-resistent, two-phase tin-zinc metallic alloy by continuously passing said metal material through a bath of molten metal, said metallic alloy comprising zinc, nickel, at least 15 weight percent tin, and at least 0.05 weight percent metallic stabilizer selected from the group consisting of antimony, bismuth and copper.
Specification