Electrospraying apparatus and method for coating particles
US7279322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B13/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.