Process for preparing acrylamide polymers
US4455411A · kind A · utility
1Cited by
5References
7Claims
0Family size
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Key dates
| Filing date | Jun 14, 1983 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Jun 14, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Acrylamide polymers having remarkably high molecular weights can be obtained by polymerizing acrylamide or a monomer mixture comprising a preponderant quantity of acrylamide in an aqueous medium with the use of a specific redox initiator and a specific azo compound initiator. The polymerization initiator used in this porcess comprises a combination of a persulfate, formaldehyde sodium sufoxylate and 2,2'-azobis-2-amidinopropane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.