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US 12,157,144 B2Granted
High-performance textured coating
AssigneeSwimc LLC
InventorsJonathan Sowins, Jeffrey D. Rogozinski, John M. Bronk, Keith M. Kirkwood, Robert G. Polance
Life of this patent
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Abstract
A coated article is described, including a substrate with a coating composition applied thereon to provide a coated article with a textured surface. In one aspect, the coated article is a steel rebar used to reinforce concrete. The textured surface provides optimal surface roughness and demonstrates superior pullout strength relative to an uncoated standard.
Claims8
A coated article, comprising:
- a powder coating composition applied on a structural insert member at a film thickness of 250 to 425 micron, the powder coating composition comprising:
- about 40 to 70% by weight of a binder resin component;
- about 0.1 to 10% by weight of a texturizing additive with median particle size (D50) of about 20 to 300 μm prior to extrusion with the binder resin component of the powder coating composition;
- and
- about 0.5 to 20% by weight of a functionalized filler,
- wherein the texturizing additive and functionalized filler combine to form an agglomerate of average particle size of at least 200 μm, and the coated article has surface roughness (Sz) of at least 150 μm, and demonstrates an increase in pullout strength of at least 10% relative to an uncoated article, when tested by ASTM A944-10.
3 more elements
Dependencies are inferred from the claim text.