Coating film
US-2020291257-A1 · Sep 17, 2020 · US
Near infrared reflective copper oxide coated particles
US11834579B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11834579-B2 |
| Application number | US-202117168281-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 5, 2021 |
| Priority date | Dec 18, 2020 |
| Publication date | Dec 5, 2023 |
| Grant date | Dec 5, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A copper oxide coated pigment including a particle having an outer surface, and a layer of copper oxide on the outer surface. The pigment has a reflectivity of electromagnetic radiation in a visible spectrum less than or equal to 5%, and a reflectivity of electromagnetic radiation in a near-IR and LiDAR spectrum greater than or equal to 5%. The particle is cobalt oxide or carbon black. A method for forming copper oxide coated particles includes combining a precipitating agent with a solution of copper nitrate and particles, forming coated particles. The particles are cobalt oxide or carbon black. Washing the particles, obtaining washed coated particles, and filtering the washed coated particles, obtaining filtered coated particles. Drying the filtered coated particles, obtaining dried coated particles, and calcining the dried coated particles to form the copper oxide coated particles.
First claim
Opening claim text (preview).
What is claimed is: 1. A copper oxide coated pigment comprising: a particle having an outer surface; and a layer of copper oxide on the outer surface of the particle, wherein the copper oxide coated pigment has a reflectivity of electromagnetic radiation in a visible spectrum that is less than or equal to 5%, the copper oxide coated pigment has a reflectivity of electromagnetic radiation in a near-IR and LiDAR spectrum that is greater than or equal to 5%, and wherein the particle is cobalt oxide (Co 3 O 4 ). 2. The copper oxide coated pigment of claim 1 , wherein the copper oxide coated pigment has a reflectivity of electromagnetic radiation in the visible spectrum that is less than or equal to 2%. 3. The copper oxide coated pigment of claim 1 , wherein the copper oxide coated pigment has a reflectivity for electromagnetic radiation in the near-IR and LiDAR spectrum that is greater than or equal to 20%. 4. The copper oxide coated pigment of claim 1 , wherein the copper oxide coated pigment has a reflectivity for electromagnetic radiation in the visible spectrum that is greater than or equal to 0.5% and less than or equal to 2%. 5. The copper oxide coated pigment of claim 1 , wherein the copper oxide coated pigment has a reflectivity for electromagnetic radiation in the near-IR and LiDAR spectrum that is greater than or equal to 10% and less than or equal to 65%. 6. The copper oxide coated pigment of claim 1 , wherein the copper oxide coated pigment has a blackness greater than or equal to 150 and less than or equal to 165. 7. A paint comprising: a paint binder; and at least one copper oxide coated pigment according to claim 1 . 8. The paint according to claim 7 , wherein the paint has a color with a lightness in CIELAB color space less than or equal to 40. 9. A vehicle comprising a body panel coated in the paint of claim 7 .
Assignees
Inventors
Classifications
- C09C3/063Primary
Coating · CPC title
Agglomerating, pelleting, or the like by dry methods · CPC title
Reflecting paints; Signal paints · CPC title
Coloring agents, e.g. pigments (C09D5/032 takes precedence) · CPC title
one phase coated with the other · CPC title
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Frequently asked questions
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- What does patent US11834579B2 cover?
- A copper oxide coated pigment including a particle having an outer surface, and a layer of copper oxide on the outer surface. The pigment has a reflectivity of electromagnetic radiation in a visible spectrum less than or equal to 5%, and a reflectivity of electromagnetic radiation in a near-IR and LiDAR spectrum greater than or equal to 5%. The particle is cobalt oxide or carbon black. A method…
- Who is the assignee on this patent?
- Toyota Eng & Mfg North America
- What technology area does this patent fall under?
- Primary CPC classification C09C3/063. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 05 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).