Universally dispersible particles containing hydrogen bonds
US-2015353650-A1 · Dec 10, 2015 · US
Suspensions in aqueous media
US9920139B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9920139-B2 |
| Application number | US-201515536735-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2015 |
| Priority date | Dec 22, 2014 |
| Publication date | Mar 20, 2018 |
| Grant date | Mar 20, 2018 |
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Abstract
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Provided is a suspension comprising liquid droplets dispersed in an aqueous medium, wherein said droplets comprise (a) one or more water-insoluble compounds, and (b) a vinyl polyelectrolyte (PED) having a polarity, and wherein said aqueous medium comprises a polyelectrolyte (PEW) having a polarity that is opposite to the polarity of said polyelectrolyte (PED). Also provided are a method of making such a suspension and a method using such a suspension in a process of suspension polymerization.
First claim
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The invention claimed is: 1. A suspension comprising liquid droplets dispersed in an aqueous medium, wherein said droplets comprise (a) one or more water-insoluble compounds, and (b) a vinyl polyelectrolyte (PED) having a polarity, and wherein said aqueous medium comprises a polyelectrolyte (PEW) having a polarity that is opposite to the polarity of said polyelectrolyte (PED). 2. The suspension of claim 1 , wherein the suspension has a pH of 5 to 10. 3. The suspension of claim 1 , wherein said polyelectrolyte (PED) has negative polarity and said polyelectrolyte (PEW) has positive polarity. 4. The suspension of claim 1 , wherein said polyelectrolyte (PED) comprises polymerized units of ionic monomer in an amount of 3 mole % to 12 mole %. 5. The suspension of claim 1 , wherein said polyelectrolyte (PEW) comprises polymerized units of ionic monomer in an amount of 40 mole % to 100 mole %. 6. A method of making a suspension comprising (A) providing a non-aqueous solution comprising (a) one or more water-insoluble compounds (A)(a), and (b) a vinyl polyelectrolyte (PED) having a polarity, (B) providing an aqueous solution comprising a polyelectrolyte (PEW) dissolved in an aqueous medium, wherein the polyelectrolyte (PEW) has a polarity opposite to the polarity of the polyelectrolyte (PED), (C) forming a mixture by bringing the non-aqueous solution (A) into contact with the aqueous solution (B), and (D) agitating the mixture to produce a suspension of droplets in an aqueous medium, wherein the droplets comprise the water-insoluble compounds (A)(a).
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- What does patent US9920139B2 cover?
- Provided is a suspension comprising liquid droplets dispersed in an aqueous medium, wherein said droplets comprise (a) one or more water-insoluble compounds, and (b) a vinyl polyelectrolyte (PED) having a polarity, and wherein said aqueous medium comprises a polyelectrolyte (PEW) having a polarity that is opposite to the polarity of said polyelectrolyte (PED). Also provided are a method of maki…
- Who is the assignee on this patent?
- Rohm & Haas, Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08F12/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 20 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).