Catalytic process for the preparation of phosphazene polymers
US4116891A · kind A · utility
6Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1976 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Dec 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2385/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is disclosed for the catalytically-induced preparation of phosphazene polymers. Cyclic halophosphazenes are polymerized in the presence of a catalytically sufficient amount of a Lewis acid catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.