Processes for the production of paper and paper board
US5254221A · kind A · utility
17Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Nov 23, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The use of very high molecular weight polymers which are substantially completely water soluble as flocculants in paper making improves drainage time without adversely affecting formation, even when used in high shear processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.