Fluidifier additives for dispersions of coal in water
US4915708A · kind A · utility
6Cited by
2References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 31, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Oct 31, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Storage-stable, pumpable concentrated dispersions of coal in water contain a non ionic additive constituted by the product of polyethoxylation of a styrene-allyl alcohol copolymer having a relatively low molecular weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.