Method of preparing modified diallyl-N,N-disubstituted ammonium halide polymers
US7473334B2 · kind B2 · utility
10Cited by
19References
31Claims
0Family size
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Key dates
| Filing date | Oct 15, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing a modified diallyl-N,N-disubstituted ammonium halide polymer and use of the polymer in combination with one or more high molecular weight, water soluble cationic, anionic, nonionic, zwitterionic or amphoteric polymers for increasing retention and drainage in a papermaking furnish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.