Rock fragmentation method
US4959164A · kind A · utility
6Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S82/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The enhancement of rock fragmentation and rock excavation by neutralizing the rock surface charge with respect to the drilling, tunneling, cutting, grinding, or polishing fluid. Water-soluble, high-molecular-weight, nonionic polymers are employed to neutralize the surface charge on the rock, thereby promoting increased drilling, cutting, tunneling, grinding and polishing performance resulting in increases in drilling, tunneling, cutting, grinding and polishing penetration rate, extensions in bit, cutting tool, grinding media, and polishing tool life and dust suppression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.