Highly dispersed palladium catalysts
US-2024246067-A1 · Jul 25, 2024 · US
Plating catalyst and method
US10066299B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10066299-B2 |
| Application number | US-201313775208-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2013 |
| Priority date | Feb 24, 2013 |
| Publication date | Sep 4, 2018 |
| Grant date | Sep 4, 2018 |
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Abstract
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A solution including a precious metal nanoparticle and a polymer polymerized from at least two monomers, (1) a monomer having two or more carboxyl groups or carboxyl acid salt groups and (2) a monomer which has π electron-available features. The solution is useful for a catalyst of a process for electroless plating a metal on non-conductive surface.
First claim
Opening claim text (preview).
What is claimed is: 1. A solution consisting of precious metal nanoparticles from precious metal sources, a solvent selected from the group consisting of water, alcohol and mixtures thereof, a reducing agent, and a polymer, wherein the polymer is polymerized from two monomers, (1) a monomer having two or more carboxyl groups or carboxyl acid salt groups and (2) a monomer which has π electron-available features, wherein a mole ratio of monomer (1) to monomer (2) is from 0.1 to 10, and one or more additives selected from the group consisting of buffers, and pH adjusting agents, wherein the solution has at least two pKa values. 2. The solution of claim 1 , wherein the monomer (2) is selected from the group consisting of aromatic vinyl monomer and alkadiene. 3. The solution of claim 1 , wherein the monomer (2) is selected from the group consisting of styrene, substituted styrene and butadiene. 4. The solution of claim 1 , wherein the monomer (1) is maleic acid or salts thereof. 5. The solution of claim 1 , wherein the precious metal nanoparticles are divalent metal. 6. The solution of claim 5 , wherein the precious metal nanoparticles are palladium. 7. The solution of claim 1 , wherein the mole ratio of the monomer (1) to the monomer (2) is from 0.5 to 2. 8. The solution of claim 1 , wherein the polymer has a molecular weight (Mw) of 400 to 700,000. 9. The solution of claim 8 , wherein the polymer has a molecular weight (Mw) of 800 to 10,000.
Assignees
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Classifications
Use of organic or inorganic compounds other than metals, e.g. activation, sensitisation with polymers · CPC title
Use of organic or inorganic compounds other than metals, e.g. activation, sensitisation with polymers · CPC title
Coating with copper · CPC title
Use of metal, e.g. activation, sensitisation with noble metals · CPC title
Plasma, e.g. for treating a substrate to improve adhesion with a conductor or for cleaning holes · CPC title
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- What does patent US10066299B2 cover?
- A solution including a precious metal nanoparticle and a polymer polymerized from at least two monomers, (1) a monomer having two or more carboxyl groups or carboxyl acid salt groups and (2) a monomer which has π electron-available features. The solution is useful for a catalyst of a process for electroless plating a metal on non-conductive surface.
- Who is the assignee on this patent?
- Rohm & Haas Elect Mat
- What technology area does this patent fall under?
- Primary CPC classification B01J23/44. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 04 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).