Scale-inhibiting compositions for aqueous solutions
US4148728A · kind A · utility
0Cited by
2References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1976 |
| Grant date | Apr 10, 1979 |
| Priority date | — |
| Expiry date | Nov 22, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/245
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Compositions for inhibiting the deposition of scale from aqueous solutions onto surfaces in contact with the solutions, such compositions comprising at least one fluorocarbon which will deposit on such surface, exemplary fluorocarbons being at least one of the following: ##STR1## where n is an integer from 2 to 20, the compositions optionally containing hydroxyethylenediphosphonic acid, together with methods for treating surfaces with such fluorocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.