Process for the manufacture of thermoplastic polymer particles, thermoplastic polymer particles prepared thereby, and articles prepared therefrom
US11613610B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Dec 4, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the manufacture of thermoplastic polymer particles include combining a first solution having a polyetherimide, a polycarbonate, or a combination thereof and an organic solvent with an aqueous solution including a surfactant, and agitating the resulting mixture using a shear force generating device operating at a preselected peripheral rotational speed to provide an emulsion. The emulsion is heated to remove the organic solvent and provide an aqueous polymer dispersion including the thermoplastic polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.