Preparation of water soluble cationic acrylamide polymer and product using weak acid to adjust pH
US4668747A · kind A · utility
8Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Aug 2, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Use of dicarboxylic acid in the preparation of cationic water soluble polymers useful in flocculation of suspended solids in various waste waters is disclosed. The dicarboxylic acids are shown to improve stability of cationic functionality and enhance distribution of charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.