A polymer composition that comprises from about 20 wt. % to about 70 wt. % of a polymer matrix that includes a polyimide; from about 10 wt. % to about 50 wt. % of inorganic fibers; from about 5 wt. % to about 30 wt. % of a flame retardant system that includes an organophosphorous compound; and from about 0.1 wt. % to about 5 wt. % of a stabilizer system that includes a heat stabilizer is provided. The heat stabilizer includes a copper compound. The polymer composition exhibits an initial tensile strength and an aged tensile strength after exposure to temperature of 200° C. for 1,000 hours. The ratio of the aged tensile strength to the initial tensile strength is about 0.5 or more.
Heat Stabilized, Flame Retardant Polymer Composition
2023-06-15
Patent
Elektronische Ressource
Englisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01R Elektrisch leitende Verbindungen , ELECTRICALLY-CONDUCTIVE CONNECTIONS / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |
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