Polyoxyalkylene phosphonates and improved process for their synthesis
US7208554B2 · kind B2 · utility
5Cited by
29References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2005 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Apr 5, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing polyoxyalkylene phosphonates in high yield and purity without extensive isolation procedures. The process also enables hydroxy terminated polyoxyalkylene phosphonates to be produced with their attendant high aqueous solubility and the availability of the reactive group to have the end functionality easily molecularly modified. Products produced by these processes have enhanced dispersion, coating, adhesion, and plasticizing characteristics as a result of the lack of any steric hinderance on these polyoxyalkylene phosphonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.