Use of blends of dispersion polymers and coagulants for coated broke treatment
US5837100A · kind A · utility
10Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/455
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved papermaking process comprising forming an aqueous coated broke papermaking slurry and adding a blend of a water-soluble dispersion polymer and a coagulant to the slurry to increase retention and/or drainage is disclosed. After addition of the polymers, the slurry is drained to form a sheet, and the sheet is dried.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.