Cross-linked anionic and amphoteric polymeric microparticles
US5171808A · kind A · utility
72Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Jul 22, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/54
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Novel compositions comprising anionic and/or amphoteric organic polymeric microparticles are disclosed, along with a method for their production. The products are useful in flocculating a wide variety of dispersions of suspended solids and in paper-making.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.