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US 2026/0226291 A1Published application
Fire-retardant powder coatings
AssigneePPG Industries Ohio, Inc.
InventorsManuel Rudi Hermann Schmid, Shuang Ma
Life of this patent
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Abstract
The present disclosure is directed to a fire-retardant powder coating composition comprising a) a film-forming component; b) a phosphate source; and c) a filler material comprising clay, calcium carbonate, aluminum hydroxide, or clay and silica. Also disclosed are substrates coated with the powder coating composition, and methods of coating substrates.
Claims20
A fire-retardant powder coating composition comprising:
- a) a film-forming component;
- b) a phosphate source;
- and
- c) a filler material comprising clay and optionally silica, wherein the clay and optional silica combined is present in an amount of greater than 5% by weight, based on the total weight of the composition.
1 more element
A fire-retardant powder coating composition comprising:
- a) a film-forming component;
- b) a phosphate source;
- and
- c) a filler material comprising calcium carbonate, wherein calcium carbonate is present in an amount of greater than 10% by weight when the composition comprises titanium dioxide in an amount of at least 5% by weight, based on the total weight of the composition.
1 more element
A fire-retardant powder coating composition comprising:
- a) a film-forming component;
- b) a phosphate source;
- and
- c) a filler material comprising aluminum hydroxide,
- wherein aluminum hydroxide is present in an amount of greater than 10% by weight when the composition comprises titanium dioxide in an amount of at least 5% by weight, based on the total weight of the composition;
- and
- wherein the composition comprises less than 5% by weight of an organo silane.
4 more elements
Dependencies are inferred from the claim text.