High molecular weight zwitterionic polymers
US6313246A · kind A · utility
20Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1999 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/41
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is directed to high molecular weight water-soluble zwitterionic polymers derived from zwitterionic and nonionic monomer units, and to the use of the polymers in papermaking processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.