Method and apparatus for manufacturing resin particles
US11319415B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Mar 25, 2019 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Oct 5, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing resin particles is provided. The method includes the steps of: dissolving a resin free of poly(lactic-co-glycolic acid) (PLGA) in a good solvent of the resin to prepare a resin solution; and discharging the resin solution from at least one discharge hole having an inner diameter of less than 1,000 μm into a poor solvent of the resin to form resin particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.