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US 11,884,833 B2Granted
Damage-tolerant coating
AssigneeSwimc LLC
InventorsJames A. Register, Dawn Michelle Lieu, Gregory B. Hayes, Jade Muns
Life of this patent
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Abstract
The present invention provides a coating composition having excellent damage tolerance. The coating composition includes a binder system comprising at least a fluoropolymer, optionally, one or more other resin components, a crosslinking component and at least one inorganic filler and organic filler. Coated articles with the coating composition applied to at least a portion of a surface thereof are also provided.
Claims7
A coil-coated article, comprising
- a substrate;
- a coating disposed thereon at a film thickness of 0.5 to 1 mil and cured by baking for 8 to 25 seconds to a peak metal temperature (PMT) of about 200 to 250° C., the coating derived from a composition comprising:
- a binder system including a first resin component comprising at least a fluoropolymer;
- an organic filler material comprising polytetrafluoroethylene (PTFE) having a D50 particle size of about 7 to 12 μm;
- about 1.5 to 10 wt %, based on the total weight of the composition, of an inorganic filler material comprising untreated amorphous silica and having a D50 particle size of about 5 to 15 μm;
- and
- a liquid carrier,
- wherein the coated article demonstrates damage tolerance of at least about 10,000 cycles at a coefficient of friction (μ) of no more than about 0.15.
5 more elements
Dependencies are inferred from the claim text.