Polychlorophosphazenes and process for their preparation
US4544536A · kind A · utility
9Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1983 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Mar 21, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B21/0986
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to novel polychlorophosphazenes and to the process for their preparation. These polychlorophosphazenes of the general formula: EQU Cl.sub.2 (O)P[NPCl.sub.2 ].sub.n Cl are prepared by the polycondensation of P trichloro-N dichlorophosphoryl-monophosphazene with the controlled release of POCl.sub.3 according to the equation: ##STR1## The novel polychlorophosphazenes so obtained are useful as antiflame materials, as coatings, as fertilizers, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.