Heterogenous polymerization in carbon dioxide
US5639836A · kind A · utility
14Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1369
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The heterogeneous polymerization of water-soluble polymer in CO.sub.2 is disclosed. The method comprises providing a heterogeneous reaction mixture comprising CO.sub.2, a monomer, and a surfactant, then polymerizing the monomer to form a water-soluble polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.