Abstract: A composition comprises, based on the total weight of the composition, 25 wt % to 50 wt % of a polyetherimide; and 50 wt % to 75 wt % of a polyphthalamide; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A foamed thermoplastic material includes a thermoplastic material exhibiting, in its unfoamed state, a particular flammability index, flame growth rate, and specific extinction area. The foamed thermoplastic material further includes a plurality of cells having a number average mean diameter of 5 to 150 micrometers present in an amount effective to provide the foamed thermoplastic material with a density that is 10 to 90 percent of the density of the unfoamed thermoplastic material. The foamed thermoplastic material exhibits a desirable tensile elongation and dielectric constant. A process for forming the foamed thermoplastic material, articles including the foamed thermoplastic material, and an article-forming process are also described.

Abstract: A composition comprises, based on the total weight of the composition, 50 wt % to 90 wt % of a polyetherimide; and 10 wt % to 50 wt % of a filler comprising talc, titanium dioxide, zirconium oxide, neutral aluminum oxide, or a combination comprising at least one of the foregoing; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A method for forming a polymer/graphene nanocomposite includes irradiating a polymer comprising an aromatic poly(carbonate-ester), a poly(etherimide-sulfone), or a combination thereof with radiation comprising a wavelength in a range of 8.3 to 11 ?m to provide the polymer/graphene nanocomposite.

Abstract: A method for forming a polymer/graphene nanocomposite includes providing a polymer blend comprising a polyetherimide and a polycarbonate; and irradiating the polymer blend with radiation comprising a wavelength in a range of 8.3 to 11 ?m to provide the polymer/graphene nanocomposite. The polymer blend has a melt volume rate of 1 to 100 cm3/10 min, preferably 5 to 75 cm3/10 min, more preferably 10 to 50 cm3/10 min, as determined at 360° C./5.0 kg in accordance with ISO 1133.

Abstract: A method for forming a polymer/graphene nanocomposite includes providing a polymer matrix comprising a clear polymer and an additive effective to induce graphitization of the polymer at a wavelength in a range of 8.3 to 11 ?m, and irradiating the polymer matrix with radiation comprising a wavelength in a range of 8.3 to 11 ?m to provide the polymer/graphene nanocomposite.

Abstract: A poly(siloxane-etherimide) composition comprising, based on the total weight of the composition, 70 to 90 wt % of a poly(siloxane-etherimide); and an additive comprising a polyester, a filler, or a combination thereof; wherein the filler comprises talc, calcium carbonate, or a combination comprising at least one of the foregoing; and wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A method of making a wire with multiple coating layers can comprise: preheating a wire to a temperature Tpreheat to form a pre-heated wire; using a first extruder to coat the pre-heated wire with the first coating material to form a first coated wire; passing the first coated wire to a second extruder without storing the first coated wire, coating the first coated wire with a second coating material to form a second coated wire; and cooling the second coated wire.

Abstract: A foamed thermoplastic material includes a thermoplastic material exhibiting, in its unfoamed state, a particular flammability index, flame growth rate, and specific extinction area. The foamed thermoplastic material further includes a plurality of cells having a number average mean diameter of 5 to 150 micrometers present in an amount effective to provide the foamed thermoplastic material with a density that is 10 to 90 percent of the density of the unfoamed thermoplastic material. The foamed thermoplastic material exhibits a desirable tensile elongation and dielectric constant. A process for forming the foamed thermoplastic material, articles including the foamed thermoplastic material, and an article-forming process are also described.

Abstract: A composition comprises, based on the total weight of the composition, 45 wt % to 75 wt % of a polyetherimide; and 20 wt % to 45 wt % of talc; and 5 wt % to 15 wt % of a fluorinated polymer; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops according to ASTM D-3638-85.

Abstract: A composition comprises, based on the total weight of the composition, 50 wt % to 90 wt % of a polyetherimide; and 10 wt % to 50 wt % of a filler comprising talc, titanium dioxide, zirconium oxide, neutral aluminum oxide, or a combination comprising at least one of the foregoing; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A molded article having improved dielectric strength is disclosed. The molded article is formed by (a) providing a thermoplastic resin composition including a base polymer resin and a mold release agent; and (b) molding the thermoplastic resin composition to form the molded article. The dielectric strength of the molded article formed is higher than a comparator molded article comprising the thermoplastic resin composition in the absence of the mold release agent.

Abstract: A composition comprises, based on the total weight of the composition, 25 wt % to 50 wt % of a polyetherimide; and 50 wt % to 75 wt % of a polyphthalamide; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A thermoplastic composition comprises, based on the total weight of the thermoplastic composition, 10 to 45 wt. % of a poly(etherimide); 35 to 90 wt. % of a polycarbonate component comprising a polycarbonate homopolymer, a poly(carbonate-siloxane), or a combination thereof; 0.5 to 20 wt. % of a compatibilizer polycarbonate component comprising a poly(carbonate-arylate ester), a phthalimidine copolycarbonate, or a combination thereof; up to 5 wt. % of an ultraviolet light stabilizer; and 0 to 20 wt. % of TiO2, wherein a sample of the composition has a 50% higher notched Izod impact energy value compared to the composition without the compatibilizer component.

Abstract: A thermoplastic composition comprises, based on the total weight of the thermoplastic composition, 10 to 45 wt. % of a poly(etherimide); 35 to 90 wt. % of a poly(carbonate-siloxane); 0.5 to 20 wt. % of compatibilizer polycarbonate component comprising a poly(carbonate-arylate ester); up to 15 wt. % of an ultraviolet light stabilizer; and 0 to 30 wt. % of TiO2; wherein a sample of the composition has a notched Izod impact energy of at least 200 J/m at 23° C. measured in accordance to ASTM D256; and an at least 50% higher notched Izod impact energy value compared to the composition without the compatibilizer component measured in accordance to ASTM D256.

Abstract: Disclosed herein is a composition comprising a compatible blend of i) 60 to 85 weight percent of a linear poly(arylene sulfide), ii) 15 to 40 weight percent of a polyetherimide sulfone; and iii) 1 to 3 weight percent of a novolac resin having an average of 2 or more epoxy groups per molecule. Weight percent is based on the total weight of the composition. An article made from the composition has a tensile strength greater than or equal to 70 megaPascals (MPa), as determined by ASTM D638, an impact strength of greater than or equal to 3 kiloJoules per square meter (kJ/m2), as determined by ASTM D256, and an elongation at break greater than or equal to 3 % as determined by ASTM D638. Methods of making the composition are also disclosed.

Abstract: A poly(siloxane-etherimide) composition comprising, based on the total weight of the composition, 70 to 90 wt % of a poly(siloxane-etherimide); and an additive comprising a polyester, a filler, or a combination thereof; wherein the filler comprises talc, calcium carbonate, or a combination comprising at least one of the foregoing; and wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A composition comprises, based on the total weight of the composition, 40 to 80 wt % of a polyetherimide; 10 to 50 wt % of talc; and 1 to 15 wt % of a polymer additive comprising a polyphthalamide, a poly(siloxane-etherimide) copolymer, aliphatic polyamide, or a combination comprising at least one of the foregoing; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.

Abstract: A composition comprises, based on the total weight of the composition, 45 wt % to 75 wt % of a polyetherimide; and 20 wt % to 45 wt % of talc; and 5 wt % to 15 wt % of a fluorinated polymer; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops according to ASTM D-3638-85.

Abstract: Compositions including a polysulfone and a UVA stabilizer. The polysulfone may be polysulfone (PSU), polyethersulfone (PES), polyphenylsulfone (PPSU) and mixtures thereof. The UVA stabilizer may include a benzotriazole moiety, a 1,3,5-triazine moiety, and/or a benzoxazinone moiety.