Paper strength improving additives, their manufacture and use in paper making
US11802376B2 · kind B2 · utility
0Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2018 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | May 4, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a polymer composition comprising an anionic polymer composite having a synthesized polymer portion and a polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of the polysaccharide. The present invention further relates to a strength system and methods of production and use in providing a paper product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.