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Fire and heat resistant laminating resins based on maleimido substituted aromatic cyclotriphosphazene polymer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1987 |
| Description | 4-Aminophenoxy cyclotriphosphazenes are reacted with maleic anhydride to produce maleamic acids which are converted to the maleimides. The maleimides are polymerized. By selection of starting materials (e.g., hexakis amino or trisaminophenoxy trisphenoxy cyclotriphosphazenes), selection of molar proportions of reactants, use of mixtures of anhydrides and use of dianhydrides as bridging groups a variety of maleimides and polymers are produced. The polymers have high limiting oxygen indices, high char yields and other useful heat and fire resistant properties making them useful as, for example, impregnants of fabrics. |
| File Size | 1234777 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870007476 |
| Archival Resource Key | ark:/13960/t5jb1226k |
| Language | English |
| Publisher Date | 1987-01-06 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Anhydrides Maleates Thermal Resistance Phenolic Resins Impregnating Flammability Polymerization Fabrics Phosphazene Cyclic Compounds Imides Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
