Polymerization of acrylamide in the presence of water-soluble nitrogen compounds
US3951934A · kind A · utility
10Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Sep 30, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing a substantially nonionic water-soluble acrylamide polymer produced without the occurence of hydrolysis of the acrylamide polymer by heating when the reaction system undergoes an unavoidable heat aging such as due to heat of polymerization comprising polymerizing a comparatively high concentration aqueous solution of acrylamide in the presence of a specific water-soluble nitrogen compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.