Fiber loading improvements in papermaking
US8808503B2 · kind B2 · utility
2Cited by
6References
4Claims
0Family size
Inventor
Key dates
| Filing date | Jan 29, 2010 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making paper includes mixing calcium hydroxide into a water and pulp fiber slurry. The method also includes reacting the calcium hydroxide and pulp fiber slurry under a carbon dioxide pressure. Further, the method includes causing calcium carbonate precipitate to form in response to the reacting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.