Poly(dichlorophosphazenes)/poly(organophosphazenes) having regulated molecular weights
US5230875A · kind A · utility
1Cited by
5References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 22, 1990 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Oct 22, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B21/0986
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The molecular weights of the poly(dichlorophosphazenes), and of the poly(organophosphazenes) produced therefrom, are controlledly regulated by heating such poly(dichlorophosphazenes) in the presence of an effective molecular weight-regulating amount of phosphorus oxychloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.