Black pigments comprising graphenic carbon particles
AssigneePPG Industries Ohio, Inc.
InventorsNoel R. Vanier, Eldon L. Decker, Stephen B. Istivan, Cheng-Hung Hung
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Abstract
Thermally produced graphenic carbon particles for use as black pigments are disclosed. The pigments may be used in coatings and bulk articles to provide desirable jetness characteristics and absorbance at visible wavelengths.
Claims22
A black coating comprising:
- a resin film;
- and
- a black pigment comprising thermally produced graphenic carbon particles in an amount up to 20 weight percent based on the total dry film weight of the coating.
A black coating composition comprising:
- a solvent;
- a film-forming resin;
- and
- thermally produced graphenic carbon particles in an amount up to 20 weight percent of the total solids weight of the film-forming resin and the thermally produced graphenic carbon particles.
An article comprising:
- a polymeric matrix;
- and
- a black pigment dispersed in the polymeric matrix comprising thermally produced graphenic carbon particles in an amount up to 20 weight percent based on the total weight of the polymeric matrix and the thermally produced graphenic carbon particles.
A method of making a black coating composition comprising dispersing thermally produced graphenic carbon particles and a film-forming resin in a solvent, wherein the thermally produced graphenic carbon particles comprise up to 20 weight percent of the total solids weight of the film-forming resin and the thermally produced graphenic carbon particles.
Dependencies are inferred from the claim text.