Hydrophobic polyelectrolytes used in removing color
US5338816A · kind A · utility
11Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Oct 7, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A hydrophobic polyelectrolyte copolymer which is useful in the removal of color in paper mill waste water. The copolymer preferably comprises diallyldimethylammonium chloride and a hydrophobic monomer selected from the group consisting of quaternized dimethylaminoethylacrylates and quaternized dimethylaminoethylmethacrylates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.