Polycarbonate isolation through homogenization devolatization
US6489372B1 · kind B1 · utility
6Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2000 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Oct 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer are removed from organic solvent-polymer mixtures by preparing a liquid-liquid dispersion of finely dispersed solvent droplets containing polymer in water, adding this liquid-liquid dispersion to a stirred vessel containing water or other suitable liquid and rapidly evaporating the solvent to produce a slurry of the polymer in a liquid from which the solid polymer particles are recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.