Process for making monohydroxy-terminated phosphate compositions
US5728859A · kind A · utility
2Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Oct 31, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is a process for forming monohydroxy-terminated aromatic oligomeric phosphates by the reaction of a diaryl halophosphate, such as diphenyl chlorophosphate, optionally in the presence of some monoaryl dihalophosphate, with an aromatic diol, such as resorcinol, to form the monohydroxy-terminated aromatic oligomeric phosphate. The reaction preferably employs a Lewis acid catalyst, such as magnesium dichloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.