Viscosity/drag reducing additive for high solids black liquor
US4734103A · kind A · utility
14Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1987 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Jul 22, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C11/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A high solids black liquor having the property of reduced turbulent flow/drag comprising a high solids black liquor which contains a few parts per million of a water soluble terpolymer containing the repeating units in the following mole percentages: ##STR1## wherein R is a lower alkyl group from 1-6 carbon atoms, M is H or alkali metal, said terpolymer having a Reduced Specific Viscosity of at least 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.