Water absorbing polymers
US4880858A · kind A · utility
14Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1987 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Aug 31, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B1/244
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A wet filter cake of coal fines or other inorganic particulate material is converted to a crumbly mass by blending with water absorbent polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.