Process for preparing water soluble polymer gels
US5185409A · kind A · utility
3Cited by
18References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Aug 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing high molecular weight water soluble polymer gels having relatively narrow molecular weight distributions is disclosed. An aqueous reaction mixture comprising a solution of a water soluble vinyl monomer and a suitable catalyst system is polymerized in a reactor comprising a tube or bag of an oxygen-impermeable film in the substantial absence of oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.