Telomers
US5604291A · kind A · utility
6Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1994 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Sep 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/173
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Phosphonic telomer intermediates for preparing the telomers of U.S. Pat. No. 5,376,731 may be produced by an aqueous process comprising (a) reacting hypophosphorous acid with a carbonyl compound which is preferably an aldehyde, a ketone or an imine, and (b) reacting the product of (a) with an olefinic reactant or reactants in the presence of a suitable initiator especially a free radical initiator. The telomer intermediates are themselves useful as scale inhibitors in aqueous systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.