Method for formulating large diameter synthetic membrane vesicles
US-9757336-B2 · Sep 12, 2017 · US
Spray drying
US10384185B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10384185-B2 |
| Application number | US-201615574561-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2016 |
| Priority date | May 29, 2015 |
| Publication date | Aug 20, 2019 |
| Grant date | Aug 20, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
A method of preparing dry core-shell microcapsules from an aqueous dispersion of such capsules, comprising spraying the dispersion through a two-fluid air-liquid nozzle into a heated chamber having an upper part and a lower part, the spraying taking place in the upper part and the lower part being provided with a means of continuous capsule removal. The method allows the drying of capsules with considerably reduced losses.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of preparing dry core-shell microcapsules from an aqueous dispersion of such capsules, comprising spraying the dispersion through a two-fluid air-liquid nozzle into a heated chamber having an upper part and a lower part, the spraying taking place in the upper part and the lower part being provided with a means of continuous capsule removal. 2. The method according to claim 1 , in which the means of continuous capsule removal is selected from rotary valves, double-flap valves and cycle valves. 3. The method according to claim 1 , in which the capsules are removed in two stages. 4. The method according to claim 3 , in which the means of continuous capsule removal from the heated chamber comprises a first stage of removal. 5. The method according to claim 3 , in which a second removal stage comprises a cyclone separator equipped with a further means of continuous capsule removal. 6. A method of preparing dry core-shell microcapsules from an aqueous dispersion of such capsules, comprising spraying the dispersion through a two-fluid air-liquid nozzle into a heated chamber having an upper part and a lower part, the spraying taking place in the upper part and the lower part being provided with a continuous capsule remover. 7. The method according to claim 6 , in which the continuous capsule remover is selected from rotary valves, double-flap valves and cycle valves. 8. The method according to claim 6 , in which the capsules are removed in two stages. 9. The method according to claim 8 , in which the continuous capsule remover from the heated chamber comprises a first stage of removal. 10. The method according to claim 8 , in which a second removal stage comprises a cyclone separator equipped with a further continuous capsule remover.
Assignees
Inventors
Classifications
by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops · CPC title
to obtain dry solids (B01D1/24 takes precedence) · CPC title
- B01J13/043Primary
Drying and spraying · CPC title
followed by coating of the granules (to prevent the granules sticking together B01J2/30) · CPC title
in a gaseous medium {(if combined with suspending the material in a gas, e.g. fluidised beds B01J2/16)} · CPC title
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Frequently asked questions
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- What does patent US10384185B2 cover?
- A method of preparing dry core-shell microcapsules from an aqueous dispersion of such capsules, comprising spraying the dispersion through a two-fluid air-liquid nozzle into a heated chamber having an upper part and a lower part, the spraying taking place in the upper part and the lower part being provided with a means of continuous capsule removal. The method allows the drying of capsules with…
- Who is the assignee on this patent?
- Givaudan Sa
- What technology area does this patent fall under?
- Primary CPC classification B01J13/043. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 20 2019 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).