Abstract: A foamable poly carbonate composition comprising 5 to 95 wt % of a poly(siloxane) block copolymer comprising a poly(carbonate-siloxane) comprising 50 to 99 wt % of bisphenol A carbonate units and 1 to 50 wt % of dimethylsiloxane units, each based on the weight of the poly(carbonate-siloxane), a poly(ester-carbonate-siloxane) comprising bisphenol A carbonate units, isophthalate-terephthalate-bisphenol A ester units, and 5 to 200 dimethyl siloxane units, or a combination thereof; 5 to 95 wt % of an auxiliary component comprising a poly(alkylene ester), a poly(ester-carbonate), or a combination thereof, and optionally, a homopolycarbonate; optionally, up to 10 wt % of an additive composition, wherein the composition has a glass transition temperature of 140° C. and below measured using differential scanning calorimetry, and wherein a foamed sample of the composition has an average cell size of 10 nanometers to 20 micrometers.

Abstract: A foamable poly carbonate composition comprising 5 to 95 wt % of a poly(siloxane) block copolymer comprising a poly(carbonate-siloxane) comprising 50 to 99 wt % of bisphenol A carbonate units and 1 to 50 wt % of dimethylsiloxane units, each based on the weight of the poly(carbonate-siloxane), a poly(ester-carbonate-siloxane) comprising bisphenol A carbonate units, isophthalate-terephthalate-bisphenol A ester units, and 5 to 200 dimethyl siloxane units, or a combination thereof; 5 to 95 wt % of an auxiliary component comprising a poly(alkylene ester), a poly(ester-carbonate), or a combination thereof, and optionally, a homopolycarbonate; optionally, up to 10 wt % of an additive composition, wherein the composition has a glass transition temperature of 140° C. and below measured using differential scanning calorimetry, and wherein a foamed sample of the composition has an average cell size of 10 nanometers to 20 micrometers.

Abstract: A foamed material includes 50 to 90 weight percent of a semicrystalline resin and 10 to 50 weight percent of a poly(phenylene ether). The semicrystalline resin can be one or more of a polyamide, a polyester, and a polyolefin. The foamed material has a density of 40 to 700 kilograms/meter3. It can be prepared by adding a blowing agent to a molten thermoplastic material containing the semicrystalline resin and the poly(phenylene ether), thereby forming a pre-foamed molten thermoplastic material, and extruding the pre-foamed molten thermoplastic material to form the foamed material. The foamed material is useful to form articles requiring solvent resistance.

Abstract: A polyamide-poly(phenylene ether) composition includes, based on the total weight of the composition, 35 to 80 weight percent of polyamide, and 20 to 65 weight percent of a poly(phenylene ether). The polyamide-poly(phenylene ether) composition is utilized in a variety of methods, including methods applicable to the oil and gas industry.

Abstract: A proppant for use in fracturing a subterranean formation is characterized by specific mean particle size, particle size standard deviation, and aspect ratio. The proppant is prepared from a thermoplastic composition that includes specific amounts of a polyamide and a poly(phenylene ether). The proppant is useful for propping a fracture in a subterranean formation.