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
15.06.2023
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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