Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems
US8771469B2 · kind B2 · utility
3Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2010 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Nov 8, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to resins useful for drainage in papermaking and the process of making paper using the resins. In particular the invention relates to glyoxalated copolymers of acrylamide containing significant amounts of cationic comonomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.