Purification of polymeric dispersions by stripping in the presence of adsorbent materials
US6348636B1 · kind B1 · utility
6Cited by
57References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Dec 20, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/003
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to methods for removing VOCs from an aqueous polymer dispersion (e.g., an SBR latex) in which the dispersion is contacted with a stripping medium in the presence of a particulate adsorbent such as activated carbon. This process results in the rapid and economical removal of VOCs from polymer dispersions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.