High molecular weight zwitterionic polymers
US6590051B1 · kind B1 · utility
21Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jan 22, 2021 |
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.