Abstract: Described herein are polymer compositions (PC) including a polyamide (PA) and a reactive impact modifier. As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, a bis(aminoalkyl)cyclohexane, terephthalic acid, and, optionally, a cyclohexanedicarboxylic acid. It was surprisingly discovered that semi-aromatic polyamides derived from the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid provided for polymer compositions (PC) having improved retention of mechanical properties (e.g. tensile strength and flexural strength) after aging in aqueous solutions, relative to analogous polyamides free of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid.

Abstract: Described herein are polymer compositions (PC) including a polyamide and carbon fiber. As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, terephthalic acid, and a bis(aminoalkyl)cyclohexane or a cyclohexanedicarboxylic acid. It was surprisingly discovered that incorporation of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid into the polyamide provided for carbon fiber filled polymer compositions (PC) having significantly improved mechanical properties (e.g. tensile modulus and strength) at elevated temperatures, as well as significantly improved retention of mechanical properties after heat aging, relative to analogous polyamides free of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid.

Abstract: The present disclosure relates to a method for manufacturing a three-dimensional (3D) object with an additive manufacturing system, comprising a step consisting in printing layers of the three-dimensional object from the part material comprising at least one poly(aryl ether sulfone) (PAES) polymer and at least one per(halo)fluoropolymer (FP), having a melt viscosity measured according to ASTM D3835, at 372° C. and 1000 s?1, using a using a Hastelloy die of 1 mm×10 mm, of at most 1.5×103 Pa·s. The present invention also relates to polymeric part material, e.g. filaments or pellets, comprising such a PAES and a FP, as well as to the use of PAES and PF to prepare pellets or filaments and to print 3D objects.

Abstract: A laser-weldable composition and method using the same, said composition comprising at least one amorphous polyamide made from the polycondensation of at least an acyclic aliphatic diamine comprising at least 10 carbon atoms and/or at least an acyclic aliphatic diacid comprising at least 10 carbon atoms, and at least a phthalic acid selected from the group consisting of terephthalic acid and isophthalic acid, at least one flat glass fiber; and at least one organic dye which absorbs radiation at a wavelength from 800 to 1400 nm.

Abstract: The present invention relates to polyamide compositions featuring improved thermal stability comprising at least one semi-aromatic polyamide, PA 6 and/or PA 6,6, and elemental iron. These new compositions are very well suited for the manufacture of articles exposed to high temperature environments such as articles used in automotive applications.

Abstract: The present invention relates to stain- or dye-resistant articles comprising a polymer composition (C) comprising: —at least one semi-aromatic polyamide comprising recurring units resulting from the condensation of terephthalic acid and at least one aliphatic diamine comprising more than 8 carbon atoms; —at least one filler; —from 0.1 to 35 wt. % of at least one white pigment, based on the total weight of the composition; wherein the color of said article has a lightness (L*) of at least 70 in the CIE 1976 (L*a*, b*) color space when measured according to ASTM E308-08.

Abstract: The present invention relates to stain- or dye-resistant articles comprising a polymer composition comprising at least one semi-aromatic polyamide comprising recurring units resulting from the condensation of terephthalic acid and at least one aliphatic diamine comprising more than 8 carbon atoms, at least one filler and from 0.1 to 35 wt. % of at least one white pigment, based on the total weight of the composition.

Abstract: A fuel cell component, preferably an endplate, comprising a polymer composition (C) comprising: at least one polyamide polymer [polyamide (A)] comprising recurring units derived from the polycondensation of at least one phthalic acid and hexamethylenediamine and less than 10% moles of recurring units derived from the polycondensation of adipic acid and hexamethylene diamine, at least one reinforcing filler [filler (F)] and at least one impact modifier [impact modifier (IM)]. The fuel cell component may be manufactured by conventional molding techniques.

Abstract: High heat resistant polyamide for down hole oil components Rod guides comprising a high heat resistant polyamide composition comprising at least one polyamide and at least one heat stabilizing additive selected from elemental iron and polyhydric alcohol.

Abstract: The present invention relates to components of mobile electronic devices made of an amorphous polyamide composition characterized by excellent mechanical properties, low moisture uptake, low distortion and very good aesthetical properties. The amorphous polyamide has recurring units derived from the polycondensation of a mixture of monomers of aromatic dicarboxylic acid(s), cycloaliphatic diamine(s) with 6 to 12 carbon atoms, and a third monomer with 10 to 16 carbon atoms.

Abstract: The present invention relates to polyamide compositions featuring improved thermal stability comprising at least one semi-aromatic polyamide, PA 6 and/or PA 6,6, and elemental iron. These new compositions are very well suited for the manufacture of articles exposed to high temperature environments such as articles used in automotive applications.

Abstract: Polyamide composition very well suited for the manufacture of LED devices comprising: (a) at least a polyamide comprising recurring units derived from at least one C6 and/or at least one C10 diamine and from at least one dicarboxylic acid of the formula HO—C(?O)—R—C(?O)—OH wherein R is a cycloaliphatic moiety; (b) at least a reinforcing filler, and (c) at least a white pigment selected from a group consisting of TiO2, ZnS2, ZnO and BaSO4.

Abstract: The present invention relates to stain- or dye-resistant articles comprising a polymer composition comprising at least one semi-aromatic polyamide comprising recurring units resulting from the condensation of terephthalic acid and at least one aliphatic diamine comprising more than 8 carbon atoms, at least one filler and from 0.1 to 35 wt. % of at least one white pigment, based on the total weight of the composition.

Abstract: A polymer composition comprising (i) at least one semi-aromatic polyamide having a melting point of at least 270° C., (ii) at least one organophosphorous compound selected from phosphinates, diphosphinates and condensation products thereof, and (iii) at least 0.01 wt. %, based on the total weight of the composition, of calcium oxide.