Bitumen-sodium hydroxide-water emulsion release agent for bituminous sands conveyor belt
US4146125A · kind A · utility
37Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Nov 1, 1977 |
| Grant date | Mar 27, 1979 |
| Priority date | — |
| Expiry date | Nov 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2839
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An emulsion of bitumen in sodium hydroxide solution containing at least 1 wt. % bitumen as the disperse phase is useful, when spread over the load-bearing surface of a conveyor carrying bituminous sands, to act as a release agent to promote the clean separation of the tacky sands from the belt when the latter rounds the end roller of the conveyor system and unloads the sands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.