Horizontally flowing continuous free radical polymerization process for manufacturing water-soluble polymers from monomers in aqueous solution
US6103839A · kind A · utility
27Cited by
13References
23Claims
0Family size
Assignee
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Key dates
| Filing date | May 11, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | May 11, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/182
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A continuous free radical polymerization process for the preparation of water-soluble copolymers from water-soluble monomers for further processing to dry polymers is disclosed. The process allows efficient polymerization of the monomers in aqueous solution in the presence of a free radical catalyst through backmixing. Water-soluble polymers with molecular weights of from about 3,000-30,000,000 and preferably from about 500,000-10,000,000 are obtained utilizing this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.