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Phase-change material suspension fluid composition including fumed silica particles and method for preparing the same
US2017349799A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017349799-A1 |
| Application number | US-201715664942-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 31, 2017 |
| Priority date | Nov 7, 2014 |
| Publication date | Dec 7, 2017 |
| Grant date | — |
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- Title
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Abstract
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Disclosed are a suspension fluid and a method for preparing the suspension fluid. Particularly, the suspension fluid is prepared by dispersing fumed silica particles in a solvent that includes one or more compounds selected from the group consisting of ethylene glycol and propylene glycol, and water. The phase-change suspension fluid obtained from the present invention is a shear thickening fluid that have a constant Newtonian behavior at a low rate of shear or a low frequency band, and further have a non-Newtonian behavior as a solid-like suspension at a high rate of shear or a high frequency band due to an increase in viscosity. In addition, the phase-change suspension fluid may reversibly change its phase with vibration of a vehicle, thereby providing advantages of both of the hydro bushes and the solid type bushes.
First claim
Opening claim text (preview).
1 - 5 . (canceled) 6 . A method for preparing a phase-change suspension fluid, comprising: (i) preparing a suspension fluid by adding and dispersing fumed silica particles in a solvent including one or more compounds selected from the group consisting of ethylene glycol and propylene glycol, and water; (ii) sonicating the suspension fluid; and (iii) removing air from the sonicated suspension fluid by placing the sonicated suspension fluid in a vacuum chamber. 7 . The method of claim 6 , wherein the step of (ii) for sonicating the suspension fluid is performed for about 9 to 12 hours. 8 . The method of claim 6 , wherein the step of (iii) for removing air is performed for about 9 to 12 hours. 9 - 10 . (canceled)
Assignees
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Classifications
Electrorheological fluids; smart fluids · CPC title
not containing mineral or fatty oils · CPC title
Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes · CPC title
Mixtures of base-materials and additives · CPC title
Shear stability · CPC title
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- What does patent US2017349799A1 cover?
- Disclosed are a suspension fluid and a method for preparing the suspension fluid. Particularly, the suspension fluid is prepared by dispersing fumed silica particles in a solvent that includes one or more compounds selected from the group consisting of ethylene glycol and propylene glycol, and water. The phase-change suspension fluid obtained from the present invention is a shear thickening flu…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K3/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Dec 07 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).