Abstract: The thermoplastic molding composition comprises, based on the thermoplastic molding composition, a) at least one polyamide, copolyamide or a polyamide-comprising polymer blend as component A, b) from 0.1 to 10% by weight of carbon nanotubes, graphenes or mixtures thereof as component B, c) from 0.1 to 3% by weight of ionic liquids as component C, wherein the thermoplastic molding composition does not comprise any polyamide-12 units.

Abstract: The instant invention pertains to the use of an antistatic composition comprising a polar thermoplastic polymer and an ionic liquid as antistatic additive for non-polar thermo-plastic or elastomeric polymers. Further aspects of the invention are a process for the preparation of an antistatic non-polar thermoplastic or elastomeric polymer which process comprises incorporating therein a mixture of a polar thermoplastic polymer and an ionic liquid and the composition of a polar thermoplastic polymer, an ionic liquid and a non-polar thermoplastic or elastomeric polymer.

Abstract: The present invention relates to a process for the production of polyarylene ether block copolymers comprising, in a first stage, the reaction of at least one aromatic dihydroxy compound comprising 4,4?-dihydroxybiphenyl in a molar excess and of at least one aromatic dihalogen compound, to form a polybiphenyl sulfone polymer, and then, in a second stage, the reaction of the polybiphenyl sulfone polymer with at least one aromatic dihydroxy compound and of at least one aromatic dihalogen compound. The invention further relates to the resultant polyarylene sulfone block copolymers and to the use of the polyarylene sulfone block copolymers for the production of moldings, fibers, films, or foams.

Abstract: The invention relates to processes for the production of a composite component via multicomponent injection molding, where the composite component comprises a main body composed of a thermoplastic and an external layer composed of a foamed thermoplastic. The main body is produced via injection molding and subsequent hardening of the thermoplastic. A mixture of the foamed thermoplastic and a chemical blowing agent is injected onto the main body, subsequently hardened in the same injection mold, and foamed by heating. The composite component is solidified via cooling. The foamed thermoplastic is at least one polyamide whose modulus of elasticity is from 1 MPa to 250 MPa in the entire temperature range from 70° C. to 180° C. The chemical blowing agent is in non-polymerized form.

Abstract: The present invention relates to polyarylene ether block copolymers according to the general formula A-K—X—K-A, where —X— is a polyarylene ether segment with number-average molar mass of at least 5000 g/mol, and A- is a segment of the general structure R2NH—(R1—NH—CO—Ar—CO—NH)n—R1—NH—, in which R1 is a linear or branched alkylene group having from 2 to 12 carbon atoms and Ar is an arylene group having from 6 to 18 carbon atoms, and R2 is selected from aryloyl, alkyloyl, and H, and in which the number average of n is from 1 to 3, and there is a coupling group K of the structure —CO—Ar3—CO— linking each A to X, in which Ar13 is an aromatic group having from 6 to 18 carbon atoms. The present invention also relates to a process for the production of the polyarylene ether block copolymers of the invention, to polymer compositions comprising the polyarylene ether block copolymers of the invention, and also to the use thereof for the production of moldings, of films, of fibers, or of foams.

Abstract: The instant invention pertains to the use of an antistatic composition comprising a polar thermoplastic polymer and an ionic liquid as antistatic additive for non-polar thermo-plastic or elastomeric polymers. Further aspects of the invention are a process for the preparation of an antistatic non-polar thermoplastic or elastomeric polymer which process comprises incorporating therein a mixture of a polar thermoplastic polymer and an ionic liquid and the composition of a polar thermoplastic polymer, an ionic liquid and a non-polar thermoplastic or elastomeric polymer.

Abstract: The thermoplastic molding composition comprises, based on the thermoplastic molding composition, a) as component A, at least one thermoplastic matrix polymer selected from poly-amides, polyesters, polyacetals, and polysulfones, where this can also take the form of polymer blend, b) as component B, from 0.1 to 5% by weight of at least one highly branched or hyperbranched polymer which has functional groups which can react with the matrix polymer of component A, and c) as component C, from 0.1 to 15% by weight of conductive carbon fillers selected from carbon nanotubes, graphenes, carbon black, graphite, and mixtures thereof, with the exclusion of specific thermoplastic molding compositions.

Abstract: The thermoplastic molding composition comprises, based on the thermoplastic molding composition, a) as component A, at least one polyamide or copolyamide, or one polymer blend comprising polyamide, b) as component B, from 3 to 20% by weight of carbon black or graphite, or a mixture thereof, c) as component C, from 0.1 to 3% by weight of ionic liquids.

Abstract: The thermoplastic molding composition comprises, based on the thermoplastic molding composition, a) at least one polyamide, copolyamide or a polyamide-comprising polymer blend as component A, b) from 0.1 to 10% by weight of carbon nanotubes, graphenes or mixtures thereof as component B, c) from 0.1 to 3% by weight of ionic liquids as component C, wherein the thermoplastic molding composition does not comprise any polyamide-12 units.

Abstract: The present invention relates to polyarylene ether block copolymers according to the general formula A-K-X-K-A, where —X— is a polyarylene ether segment with number-average molar mass of at least 5000 g/mol, and A— is a segment of the general structure R2NH—(R1—NH—CO—Ar—CO—NH)n—R1—NH—, in which R1 is a linear or branched alkylene group having from 2 to 12 carbon atoms and Ar is an arylene group having from 6 to 18 carbon atoms, and R2 is selected from aryloyl, alkyloyl, and H, and in which the number average of n is from 1 to 3, and there is a coupling group K of the structure —CO—Ar3—CO— linking each A to X, in which Ar3 is an aromatic group having from 6 to 18 carbon atoms. The present invention also relates to a process for the production of the polyarylene ether block copolymers of the invention, to polymer compositions comprising the polyarylene ether block copolymers of the invention, and also to the use thereof for the production of moldings, of films, of fibers, or of foams.

Abstract: An aromatic polyether sulfone block copolymer comprises hydrophilic segments which have sulfonic acid groups and hydrophobic segments which have no sulfonic acid groups, wherein the proportion by weight of hydrophilic segments is from 0.02 to 0.35.

Abstract: The present invention relates to a process for the production of polyarylene ether block copolymers comprising, in a first stage, the reaction of at least one aromatic dihydroxy compound comprising 4,4?-dihydroxybiphenyl in a molar excess and of at least one aromatic dihalogen compound, to form a polybiphenyl sulfone polymer, and then, in a second stage, the reaction of the polybiphenyl sulfone polymer with at least one aromatic dihydroxy compound and of at least one aromatic dihalogen compound. The invention further relates to the resultant polyarylene sulfone block copolymers and to the use of the polyarylene sulfone block copolymers for the production of moldings, fibers, films, or foams.

Abstract: The invention relates to processes for the production of a composite component via multicomponent injection molding, where the composite component comprises a main body composed of a thermoplastic A) and an external layer composed of a foamed thermoplastic B), where the main body is produced in a first process step a) via injection molding of the thermoplastic A) and subsequent hardening of the same in an injection mold, and an external layer is injected on to the main body in a second process step b) which follows directly, via injection molding of a mixture comprising the thermoplastic B) and comprising a chemical blowing agent, and the mixture is subsequently hardened in the same injection mold, with somewhat extended cavity, and the external layer injected on to the main body is foamed in a further process step d) via introduction of heat, and the composite component is solidified via cooling in a final process step e), where an essential feature of the invention is that it comprises using, as thermoplast

Abstract: Sheet-like moldings or foils with anisotropic coefficients of thermal expansion are produced from extrudable thermoplastic polymer molding compositions by filling the thermoplastic polymer molding compositions with lamellar phyllosilicates whose diameter is in the range from 10 to 1000 nm and whose aspect ratio is in the range from 1:5 to 1:10 000 and extruding the filled thermoplastic polymer molding compositions, and then monoaxially or biaxially orienting the extrudate to give sheet-like moldings or foils.

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.9% by weight of at least one thermoplastic polyamide B) from 0.1 to 50% by weight of a copolymer obtainable via (i) preparation of at least one reaction mixture (a) via free-radical copolymerization of one or more monoethylenically unsaturated monomeric compound(s) (monomer(s) B1) with one or more compound(s) selected from the group of itaconic acid, mesaconic acid, fumaric acid, maleic acid, aconitic acid, glutaconic acid, and salts, esters, and anhydrides thereof (monomer(s) B2), and (ii) if appropriate, reaction of at least one of the copolymers obtained in step (i) with one or more crosslinking agent(s) (b), and C) from 0 to 60% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.