Process for making a liquid evaporation retardant solution
US6943141B2 · kind B2 · utility
1Cited by
4References
3Claims
0Family size
Inventor
Key dates
| Filing date | May 13, 2002 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Feb 16, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J19/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for manufacturing a liquid evaporation retardant product that combines isopropanol-water azeotrope with up to 5% octadecanol by weight of the total solution, and upon which improved capability to remain precipitate free in the event of colder temperatures than normal is conferred by adding n-butanol at 10% by weight of the pre-made basic product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.