Alkali metal Kurrol's salt as a paper pulp draining aid
US4909902A · kind A · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/66
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for the manufacture of paper and paper products is disclosed in which an alkali metal Kurrol's salt, preferably potassium Kurrol's salt, is added to the process water to improve the process water drainage from the paper pulp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.