Hydrophobic polyelectrolytes used in removing color
US5283306A · kind A · utility
9Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Aug 26, 2012 |
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.