摘要:
A uniaxially-stretched, high yield extruded capacitor film comprising a compatible polymer blend comprising a polyetherimide and a polyphenylene ether sulfone, wherein the polyetherimide comprises units derived from polymerization of an aromatic dianhydride with a diamine comprising a m- phenylenediamine, a p-phenylenediamine, or combinations thereof, wherein the polyetherimide is endcapped with a substituted or unsubstituted aromatic primary monoamine, wherein the polyphenylene ether sulfone comprises both an ether linkage and an aryl sulfone linkage in its backbone, wherein the compatible polymer blend comprises a dispersed phase having an average cross section of from equal to or greater than about 0.01 microns to about 20 microns, and wherein the high yield extruded capacitor film comprises equal to or greater than about 90 wt.% of the compatible polymer blend entering an extruder used for manufacturing the capacitor film, based on the total weight of the compatible polymer blend prior to entering the extruder.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung eines Gleitbelags aus einem aus einer chemisch mit einem: Polyfluorkohlenwasserstoff verbundenen Kunststoffmatrix hergestellten Garn und einer aushärtbaren Harzmatrix mit zumindest folgenden Verfahrensschritten der Polyfluorkohlenwasserstoff wird mittels hochenergetischer Bestrahlung unter Ausbildung von reaktiven funktionellen Gruppen aktiviert, der aktivierte Polyfluorkohlenwasserstoff wird in einer Reaktivextrusion mit der Kunststoffkomponente chemisch zu einem granulatförmigen Substrat umgesetzt, aus dem Substrat werden mittels eines Spinnverfahrens Filamente erzeugt, mehrere Filamente werden zu einem Garn versponnen, aus dem Garn und der Harzmatrix wird ein harzgetränkter Textilkörper hergestellt und zu einem Halbzeug ausgehärtet, aus dem Halbzeug wird durch endformende Nachbearbeitung der Gleitbelag hergestellt.
摘要:
A film comprises a phthalimidine copolycarbonate comprising first repeating units and second repeating units different from the first repeating units, wherein the first repeating units are phthalimidine carbonate units; and the second repeating units comprise bisphenol carbonate units that are not the same as the first repeating phthalimidine carbonate units; and a second polycarbonate that is not a phthalimidine copolycarbonate; wherein the film has: a glass transmission temperature of greater than 170°C; a dielectric constant at 1 kHz, 23°C and 50% relative humidity of at least 3.0; a dissipation factor at 1 kHz, 23°C and 50% relative humidity of 1% or less; and a breakdown strength of at least 800 Volt/micrometer.
摘要:
A composition including a blend of: a) a polyethersulfone; b) a polyphenylene sulfide; and c) an epoxy and optionally a polyetherimide, wherein the polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyethersulfone and polyphenylene sulfide.
摘要:
Blends of a polyphenylsulfone; a polyphenylene sulfide; and a polyetherimide and an epoxy. The polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyphenylsulfone and polyphenylene sulfide. Methods of compatibilizing a blend of polyphenylsulfone and polyphenylene sulfide can include melt mixing a polyphenylsulfone and a polyetherimide; and melt mixing a polyphenylene sulfide and an epoxy.
摘要:
This invention relates to a polymeric particle, and in particular to a polymeric particle prepared by forming a polyimide in the presence of a particle of base polymer.