Diallyl dimethyl ammonium chloride copolymers in deinking process water clarification
US5207924A · kind A · utility
12Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Jun 19, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/928
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel copolymers of polydiallyl dimethyl ammonium chloride and 3-acrylamido-3-methylbutanoic acid are useful in the clarification of deinking paper mill waste water resulting from the processing of recycled paper stock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.