Coating composition with anticorrosion effect
US-2017096564-A1 · Apr 6, 2017 · US
Coating compositions having improved corrosion resistance
US12319835B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12319835-B2 |
| Application number | US-201816956439-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2018 |
| Priority date | Dec 20, 2017 |
| Publication date | Jun 3, 2025 |
| Grant date | Jun 3, 2025 |
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- Title
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Abstract
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The present invention is directed towards curable film-forming coating compositions comprising metal particles; an alkaline earth metal compound comprising an alkaline earth metal oxide, an alkaline earth metal carbonate, an alkaline earth metal hydroxide, an alkaline earth metal sulfate, an alkaline earth metal monocarboxylate, an alkaline earth metal phosphate, or combinations thereof; and an organic film-forming binder. Also disclosed are methods of making curable film-forming coating compositions, methods of coating substrates, and coated substrates resulting therefrom.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of making a multi-component curable film-forming coating composition comprising: forming a first component by combining an organic film-forming resin and an alkaline earth metal compound comprising magnesium oxide and/or magnesium hydroxide; forming a second component by combining a curing agent and an aldehyde and/or ketone component having at least one aromatic ring comprising a ketone and/or aldehyde group and at least one pendant group represented by —OR 1 , wherein each R 1 is independently selected from hydrogen, an alkyl group, or an aryl group; and combining metal particles with the first component, the second component, an optional third component, or a combination thereof; wherein the metal particles comprise aluminum particles, aluminum alloy particles, or combinations thereof. 2. The method of claim 1 , wherein the metal particles further comprise zinc particles. 3. The method of claim 1 , wherein the metal particles comprise aluminum particles, aluminum alloy particles, or combinations thereof in the form of flakes. 4. The method of claim 1 , wherein the metal particles comprise aluminum particles, aluminum alloy particles, or combinations thereof in the form of powder, dust, and/or flakes. 5. The method of claim 1 , wherein the metal particles comprise aluminum particles, aluminum alloy particles, or combinations thereof, surface treated with a trivalent chromium pretreatment composition.
Assignees
Inventors
Classifications
Inorganic compounds · CPC title
Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins · CPC title
containing Zn · CPC title
Anticorrosion agents · CPC title
the composition being defined by the absence of a certain additive · CPC title
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- What does patent US12319835B2 cover?
- The present invention is directed towards curable film-forming coating compositions comprising metal particles; an alkaline earth metal compound comprising an alkaline earth metal oxide, an alkaline earth metal carbonate, an alkaline earth metal hydroxide, an alkaline earth metal sulfate, an alkaline earth metal monocarboxylate, an alkaline earth metal phosphate, or combinations thereof; and an…
- Who is the assignee on this patent?
- Ppg Ind Ohio Inc
- What technology area does this patent fall under?
- Primary CPC classification C09D7/61. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 03 2025 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).