Back to results
US 2021/0260546 A1Published application
Microspheres and method for producing them
AssigneeShenkar Engineering Design Art
InventorsDan LEWITUS, Tal SHPIGEL
Life of this patent
Estimating the term…
Abstract
An organic solvent-free method for producing a plurality of microsphere having an average diameter of less than 500 μm in diameter and having average contact angle θc greater than 140°, consisting essentially of a biocompatible hot-melt carrier vehicle and a payload substance to be delivered, comprising; melting and mixing a polymer carrier vehicle which is solid at room temperature and at least one payload substance, and dispensing microportions of the molten mixture through a droplet-forming space onto a cooled solid superoleophobic surface.
Claims17
-20. (canceled)
A plurality of microspheres:
- wherein said plurality of microspheres have an average diameter of less than 500 μm and an average contact angle θc greater than 140°;
- each microsphere within the plurality of microspheres comprises a mixture of:
- (i) carrier vehicle having a melting point of about 45° C. to 200° C.;
- and
- (ii) a payload substance that is solid or liquid in room temperature and has a melting point suitable to be dissolved or dispersed in a molten mixture and is thermally stable in a molten mixture.
2 more elements
Dependencies are inferred from the claim text.