Abstract:
A thermoplastic composition includes a polyamide, a poly(arylene ether)-polysiloxane block copolymer, and a metal dialkylphosphinate, all in particular amounts. The composition exhibits good flame retardancy without exhibiting the ductility losses that are typically observed with other flame retardant polyamide-poly(arylene ether) compositions. Also described are methods of forming the composition. The composition is useful for molding electrical and automotive components.
Abstract:
Disclosed herein is an electrically conductive precursor composition comprising an organic polymer precursor; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and an optional nanosized conductive filler. A conductive composition comprises an organic polymer; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and a nanosized conductive filler.
Abstract:
An article comprising a paint film disposed on at least a portion of a thermoplastic section. The thermoplastic section is made of a thermoplastic composition. The thermoplastic composition has a compatibilized blend of a poly(arylene ether) and a polyamide, an electrically conductive carbon black, and an impact modifier. The electrically conductive carbon black has agglomerates and the agglomerates have an average agglomerate size greater than or equal to 30 square micrometers. The weight ratio of electrically conductive carbon black to polyamide is greater than or equal to 0.043.
Abstract:
Thermoplastic resin compositions are provided that comprise a thermoplastic resin and an amount of antioxidant effective to increase the adhesion of paint to an article made from the composition. Also provided are methods to improve the paint adhesion of articles wherein the articles have been subjected to a temperature of at least about 330° F. for period of at least about 10 minutes. In a preferred embodiment, the antioxidant, also known as a stabilizer, or mixture of stabilizers is selected from the group consisting of the phenolic antioxidants, the 3-arylbenzofuranones, the hindered amine stabilizers, the ultraviolet light absorbers, the alkaline metal salts of fatty acids, the hydrotalcites, the epoxydized soybean oils, the hydroxylamines, the tertiary amine oxides, thermal reaction products of tertiary amine oxides, the thiosynergists, and mixture containing at least one of the foregoing.
Abstract:
Disclosed herein is an electrically conductive precursor composition comprising an organic polymer precursor; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and an optional nanosized conductive filler. A conductive composition comprises an organic polymer; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and a nanosized conductive filler.
Abstract:
A composition comprises an impact modifier and a compatibilized blend of a poly(arylene ether) and an aliphatic-aromatic polyamide. The polyamide is composed of dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units. The polyamide has an amine end group content greater than 45 micromoles per gram of polyamide.
Abstract:
Thermoplastic compositions comprising rubber modified polyalkenyl aromatic resin and a modifying agent having a core-shell structure comprised of an interpenetrating, cross-linked (meth)acrylate core and a cross-linked styrenic resin shell have significantly improved impact strength, thermal resistance and surface appearance following molding into shaped articles.
Abstract:
Novel polyphenylene ether compositions having good chemical resistance, tensile and impact properties are injection moldable without delamination near the gate. The preferred compositions comprise a polyphenylene ether, a high impact polystyrene, a styrene-ethylene/butylene-styrene copolymer, a poly(ethylene-co-methacrylic acid) and a poly(styrene-co-glycidyl methacrylate), and optionally polyethylene.
Abstract:
Acyl modified polyphenylene ether compositions are provided by combining or reacting a polyphenylene ether polymer and a compound which contains both (i) at least one acyl functional group and (ii) at least one group capable of reacting or associating with a polyamide resin, an example of a compound containing both group (i) and group (ii) is trimellitic anhydride acid chloride.
Abstract:
Flame retardant blends of an aromatic polycarbonate, preferably a tetraalkylsubstituted aromatic polycarbonate, and a copolymer of an alkenyl aromatic compound and a halogenated alkenyl aromatic compound are described. The ultraviolet light resistance and impact strength of articles molded from such compositions is superior to that of moldings prepared from corresponding blends of the polycarbonate, a polystyrene homopolymer and a conventional low molecular weight halogenated flame retardant agent.