Abstract: The present invention relates to polyamide molding compounds, pigmented black, which include nigrosin and at least one nucleation agent, carbon black being ruled out. The present invention likewise relates to a method for producing molded articles from the mentioned polyamide molding compounds and also the corresponding molded articles. The polyamide molding compounds are used in the production of components with increased temperature requirements, e.g. in the automobile sector.

Abstract: The present invention relates to polyamide moulding compounds which are distinguished by excellent flame-retardant properties and by very good long-term heat-ageing resistance. The moulding compounds according to the invention comprise a partially aromatic polyamide, caprolactam, a heat stabiliser, possibly a flame retardant and optionally further additives and admixtures. The polyamide moulding compound is thereby free of metal salts and/or metal oxides of a transition metal of group VB, VIB, VIIB or VIIIB of the periodic table.

Abstract: A transparent polyamide moulding material containing at least one cycloolefin co-polymer comprises a mixture of: (A) 55 to 99 wt % of at least one amorphous polyamide; and (B) 1 to 30 wt % of the at least one cycloolefin copolymer, Wherein, in the at least one cycloolefin copolymer (B), the cycloolefin fraction is more than 40 mol %. In this connection, the sum of the components (A) and (B) together with optional additives (C) is 100 wt % of the polyamide moulding material.

Abstract: Polyamide blend molding compound, includes a polyamide blend content and at least one impact-resistant component, characterized in that the polyamide blend content includes the following polyamides: (A) 20 to 65% by weight of at least one semi-crystalline polyamide with an enthalpy of fusion >40 J/g and with an average of at least 8 C atoms per monomeric unit; (B) 8 to 25% by weight of at least one amorphous and/or microcrystalline polyamide, with the microcrystalline polyamide having an enthalpy of fusion in the range of 4 to 40 J/g, and (C) 1 to 20% by weight of at least one polyamide with an average of a maximum of 6 C atoms per monomeric unit. The impact-resistant component includes as follows: (D) 10 to 40% by weight of a polyamide elastomer which is composed of hard segments and soft segments, with the hard segments being based on lactams and/or amino-carboxylic acids, and (E) 0 to 35% by weight of a non-polyamide elastomer.

Abstract: Flame-retardant polyamide molding material for sheathing optical waveguides/cables, includes: (A) 40-71 wt.-% copolyamide MACMI/12; (B) 20-51 wt.-% of at least one aliphatic polyamide; (C) 6-20 wt.-% melamine cyanurate; (D) 3-10 wt.-% aryl phosphate; and (E) 0-6 wt.-% further additives. Components total 100 wt.-% of polyamide molding material. Copolyamide a MACMI/12 has laurin lactam content of 23-45 mol-% in relation to molar sum of monomers MACM, isophthalic acid, and laurin lactam of this copolyamide. Isophthalic acid in copolyamide MACMI/12 can be entirely/partially replaced by terephthalic acid. Test specimen produced from this polyamide molding material has Shore hardness D of at least 77, and buckling test using PA12 extrudate coated with this molding material is passed upon winding around metal rod having 12 mm diameter. PA12 extrudate for buckling test has diameter of 1.5 mm and coating 0.7 mm thick.

Abstract: What is described is the use of a polyamide moulding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at most 15. Here, the composition contains 30-100% by weight of a polyamide mixture, consisting of more than 50 and up to 98% by weight of at least one semi-aromatic polyamide comprising 2 to up to 50% by weight of amorphous and/or microcrystalline polyamides having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms. In addition, 0-70% by weight of fibrous additives (B1) and/or particulate additives (B2), 0-30% by weight of impact toughness modifier and/or polymers different from (A), 0-25% by weight of a flame retardant, and 0-3% by weight of additives may also be contained.

Abstract: A polyamide moulding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at most 15. The composition contains 30-100% by weight of a polyamide mixture, consisting of more than 50 and up to 98% by weight of at least one semi-aromatic polyamide comprising 2 to up to 50% by weight of amorphous and/or microcrystalline polyamides having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms. In addition, the composition comprises inorganic white pigments. fibrous or particulate additives, impact toughness modifier and/or polymers different from (A), 0-25% by weight of a flame retardant.

Abstract: What is described is the use of a polyamide moulding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at least 2. Here, the composition contains 30-100% by weight of a polyamide or a polyamide mixture, consisting of 50-100% by weight of at least one amorphous and/or microcrystalline polyamide having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms, and 0-50% by weight of at least one semi-aromatic polyamide. In addition, 0-70% by weight of fibrous fillers (B1) and/or particulate fillers (B2), 0-30% by weight of impact toughness modifier and/or polymers different from (A), 0-25% by weight of a flame retardant, and 0-3% by weight of additives may also be contained.

Abstract: Flame-retardant polyamide molding material for sheathing optical waveguides/cables, includes: (A) 40-71 wt.-% copolyamide MACMI/12; (B) 20-51 wt.-% of at least one aliphatic polyamide; (C) 6-2 0wt.-% melamine cyanurate; (D) 3-10 wt.-% aryl phosphate; and (E) 0-6 wt.-% further additives. Components total 100 wt.-% of polyamide molding material. Copolyamide a MACMI/12 has laurin lactam content of 23-45 mol-% in relation to molar sum of monomers MACM, isophthalic acid, and laurin lactam of this copolyamide. Isophthalic acid in copolyamide MACMI/12 can be entirely/partially replaced by terephthalic acid. Test specimen produced from this polyamide molding material has Shore hardness D of at least 77, and buckling test using PA12 extrudate coated with this molding material is passed upon winding around metal rod having 12mm diameter. PA12 extrudate for buckling test has diameter of 1.5mm and coating 0.7 mm thick.

Abstract: The present invention relates to heat-aging resistant polyamide molding materials based on partially crystalline, partially aromatic polyamides as well as to moldings manufactured therefrom.

Abstract: A transparent polyamide elastomer of the general structure (I), where R1 is a polyamide segment formed from a) 10-100 mol % of alkyl-substituted bis(aminocyclohexyl)methane or bis(aminocyclohexyl)propane and 0-90 mol % of other cycloaliphatic, aliphatic or aromatic C6-C36 diamines, based on the total amount of diamine in the polyamide segment, and b) aliphatic C4-C36 dicarboxylic acids, cycloaliphatic or aromatic C8-C36 dicarboxylic acids, and c) optionally lactams or aminocarboxylic acids C6-C12, R2 being selected from the group of the divalent radicals: linear or branched C2-C5 polyoxyalkylene, polyolefin, polysiloxane with a number-average molar mass in the range of 200-3000 g/mol, C2-C36 alkylene, C6-C36 cycloalkylene, C6-C20 aryl, polycaprolactone, polyesters based on aliphatic or cycloaliphatic dicarboxylic acids and diols, aliphatic polycarbonate, and also copolymers of or mixtures of these elements, and X1 and X2 independently of one another being amide (CONH) or ester (COO) bonds.

Abstract: The present invention relates to polyamide moulding compounds, pigmented black, which include nigrosin and at least one nucleation agent, carbon black being ruled out. The present invention likewise relates to a method for producing moulded articles from the mentioned polyamide moulding compounds and also the corresponding moulded articles. The polyamide moulding compounds are used in the production of components with increased temperature requirements, e.g. in the automobile sector.

Abstract: What is described is a transparent polyamide-imide based on one or more different imido-dicarboxylic acids (AB) or derivatives thereof, and cycloaliphatic diamines (C) comprising 6 to 24 carbon atoms, wherein the imido-dicarboxylic acids (AB) or derivatives thereof are selected from the group of imido-dicarboxylic acids (AB) having the following structural formulas: wherein: ASL=(CH2)5-11, phenylene, (ylomethyl)phenyl, bis(ylomethyl)benzene, cyclohexanediyl, (ylomethyl)cyclohexyl, bis(ylomethyl)cyclohexane, cyclopentanediyl, (ylomethyl)cyclopentyl, bis(ylomethyl)cyclopentane, R?OH, O-alkyl, O-aryl, Cl, NH-ASL-COOH, Br, O—(CO)-alkyl, O—(CO)-aryl, R1=H, methyl, ethyl, propyl, with the provision that the ring can be substituted once or twice, and, with double substitution of the ring, the two substituents can be selected from the group, but may be different, and also moulding compounds based thereon, a method for production, and uses.

Abstract: The invention relates to a polyamide moulding compound for producing moulded articles with a soft-touch surface, the polyamide moulding compound comprising a blend of an amine-terminated, amorphous polyamide and styrene-ethylene/butylene-styrene copolymer and also styrene-ethylene/butylene-styrene copolymer grafted with maleic anhydride. The invention relates furthermore to moulded articles which are produced with this moulding compound and the use thereof.

Abstract: A polyamide molding composition with the following constitution is described: (a) from 40 to 90% by weight of a copolyamide, where this is composed of (a1) 1,6-hexanediamine and 1,10-decanediamine and also (a2) terephthalic acid and at least one other polyamide-forming monomer selected from the group of: dicarboxylic acid having from 8 to 18 carbon atoms, laurolactam, aminolauric acid, and/or mixtures thereof; (b) from 10 to 40% by weight of macromolecular plasticizers, with the proviso that these can have been replaced to some extent by low-molecular-weight plasticizers; (c) from 0 to 20% by weight of additives and/or added substances. Uses of this type of molding composition are also described, in particular for the production of a fuel line, cooling line, oil line or urea line for the automobile sector, as also are production processes to give moldings.

Abstract: Disclosed is a polyamide molding compound having heat aging resistance for use as automobile or electrical components and composed of: (A) 27-84.99 wt % of a polyamide mixture consisting of (A1) at least one semiaromatic, semicrystalline polyamide having a melting point of 255° C. to 330° C., (A2) at least one caprolactam-containing polyamide that is different from (A1) and that has a caprolactam content of at least 50 wt %, where the total caprolactam content is 22-30 wt %, with respect to the polyamide mixture, (B) 15-65 wt % of at least one filler and reinforcing agent, (C) 0.01-3.0 wt % of at least one thermal stabilizer, and (D) 0-5.0 wt % of at least one additive, where the components (A)-(D) add up to 100 wt %.

Abstract: Disclosed is a polyamide molding compound having heat aging resistance for use as automobile or electrical components and composed of: (A) 27-84.99 wt % of a polyamide mixture consisting of (A1) at least one semiaromatic, semicrystalline polyamide having a melting point of 255° C. to 330° C., (A2) at least one caprolactam-containing polyamide that is different from (A1) and that has a caprolactam content of at least 50 wt %, where the total caprolactam content is 22-30 wt %, with respect to the polyamide mixture, (B) 15-65 wt % of at least one filler and reinforcing agent, (C) 0.01-3.0 wt % of at least one thermal stabilizer, and (D) 0-5.0 wt % of at least one additive, where the components (A)-(D) add up to 100 wt %.

Abstract: The invention relates to a polyamide moulding compound for producing moulded articles with a soft-touch surface, the polyamide moulding compound comprising a blend of an amine-terminated, amorphous polyamide and styrene-ethylene/butylene-styrene copolymer and also styrene-ethylene/butylene-styrene copolymer grafted with maleic anhydride. The invention relates furthermore to moulded articles which are produced with this moulding compound and the use thereof.

Abstract: A partial vacuum brake booster line is produced from a polyamide blend molding compound having a polyamide blend component and an impact resistance component. The polyamide blend component of the polyamide blend molding compound comprises the following polyamides: (A) 25 to 65 wt.-% of at least one partially crystalline polyamide having a melt enthalpy of >40 J/g and having an average of at least 8 C atoms per monomer unit, selected from a group which consists of the polyamides PA 11, PA 610, PA 612, PA 1010, PA 106, PA 106/10T, PA 614, and PA 618; (B) 0 to 25 wt.-% of at least one amorphous and/or microcrystalline polyamide, the microcrystalline polyamide having a melt enthalpy in the range from 4 to 40 J/g; and (C) 1 to 55 wt.-% of at least one polyamide having an average of at most 6 C atoms per monomer unit. The impact resistance component is formed from: (D) 5 to 35 wt.-% of a non-polyamide elastomer or of a mixture of non-polyamide elastomers. All specifications in wt.

Abstract: The invention relates to polyamide-elastomer mixtures with an improved hydrolysis resistance. In this case, the elastomer is present in particular in the form of a microgel. The polyamide-elastomer mixtures according to the invention can be processed into molded articles that are used, for example, in the automobile industry, in particular as media-conducting conduits.