Method of increasing paper strength using an amine containing polymer composition
US9702086B2 · kind B2 · utility
2Cited by
111References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine containing polymer. The amine containing polymer interacts with materials such as GPAM or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.