Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a.

Abstract: A polyamide composition contains the following components: (a) at least 40 parts by weight PA12; (b) 0.1-15 parts by weight of at least one salt with a non-metallic cation; (c) 0.1-25% by weight of at least one dispersant based on esters or amides; (d) a quantity of carbon nanotubes that produces in the molding compound a specific surface resistance according to IEC standard 60167 of maximum 10?1-1010?; (e) 0-5 parts by weight of at least one metal salt; and optionally (f) conventional auxiliary substances and additives, the sum of the parts by weight of components (a) to (f) amounting to 100. The polyamide composition can be used for manufacturing moldings with improved electrical conductivity and improved surface quality.

Abstract: A corrosion protected metal pipe for installation in an offshore structure or for producing a pipeline laid in water is provided. The metal pipe has an at least two-layer covering on the pipe with a lower layer facing the pipe and an upper layer on a side of the lower layer not facing the pipe is provided. The layers are formed such that the lower layer is electrically conductive and the upper layer is electrically insulating, the lower layer is optically contrasting to the upper layer, or the lower layer is electrically conducting and optically contrasting to the upper layer and the upper layer is electrically insulating. Thus, in the event of damage to the layer or layers lying above, a visual or electrical signal can be detected. Damage to the corrosion protection covering can therefore be detected easily and, if appropriate, reported by remote monitoring.

Abstract: A corrosion protected metal pipe for installation in an offshore structure or for producing a pipeline laid in water is provided. The metal pipe has an at least two-layer covering on the pipe with a lower layer facing the pipe and an upper layer on a side of the lower layer not facing the pipe is provided. The layers are formed such that the lower layer is electrically conductive and the upper layer is electrically insulating, the lower layer is optically contrasting to the upper layer, or the lower layer is electrically conducting and optically contrasting to the upper layer and the upper layer is electrically insulating. Thus, in the event of damage to the layer or layers lying above, a visual or electrical signal can be detected. Damage to the corrosion protection covering can therefore be detected easily and, if appropriate, reported by remote monitoring.

Abstract: Mixtures containing dipentyl terephthalate, dinonyl terephthalate and pentyl nonyl terephthalate can be prepared with a predetermined distribution of the individual esters in the mixture, and used as plasticizers.

Abstract: A polyamide composition comprising the following components: a) at least 40 parts by weight of a polyamide whose monomer units contain an arithmetic average of at least 7.5 carbon atoms, b) 0.1 to 15 parts by weight of at least one salt with a non-metallic cation, c) 0.1 to 25 parts by weight of at least one dispersant based on esters or amides and d) an electrically conductive carbon selected from the group of carbon black, graphite powder, carbon fibers, carbon nanotubes and/or graphene, in an amount which results in a specific surface resistance of the polymer composition to IEC 60167 of 10?1 to 1010?, e) 0 to 5 parts by weight of at least one metal salt, and optionally f) customary assistants and additives, where the polyamide of component a) is not a PA12 if carbon nanotubes are present as component d), and where the sum of the parts by weight of components a) to f) is 100, can be used for production of mouldings with improved electrical conductivity and improved surface quality.

Abstract: A process for the combined preparation of a butene and an octene from ethene, proceeds by: a) providing a solvent having a boiling point or boiling range above the boiling points of the butenes and below the boiling points of the octenes and wherein the solvent is an inert solvent or is hexene alone or is hexene admixed with pentane or hexane or heptane or is a mixture of pentane, hexane, and heptane; b) providing a first feed mixture containing at least the solvent and ethene dissolved therein; c) providing a second feed mixture containing at least hexene, the solvent and also ethene dissolved in the solvent and/or in the hexene; d) transferring the first feed mixture into a first synthesis and the second feed mixture into a second synthesis, wherein the first and second syntheses are physically separated from one another; e) oligomerising of at least part of the ethene present in the first feed mixture in the presence of a first heterogeneous catalyst and in the presence of the solvent in the first synthesi

Abstract: The invention relates to a method for removing an organic compound having one or more positive charges from an aqueous solution. Said method consists of the following steps a) the aqueous solution containing the organic compound, and a hydrophobic organic solution which contains a hydrophobic liquid cation exchanger having one or more negative charges and a negative total charge, are provided, b) the aqueous solution and the organic solution are brought into contact with each other and c) the organic solution is separated from the aqueous solution.

Abstract: A polyamide composition which provides moldings having a significantly reduced percolation threshold and an improved electrical conductivity is provided. The composition contains a) at least 40 parts by weight of a polyamide; b) from 0.15 to 25 parts by weight of an electrically conductive carbon; c) from 0.3 to 8 parts by weight of an oligofunctional compound; and, optionally, d) conventional auxiliaries and additives, wherein the electrically conductive carbon comprises at least one of carbon nanotubes and graphene, the oligofunctional compound comprises at least one functional group reactive with reactive groups on a surface of the electrically conductive carbon and at least one functional group reactive with an end group of the polyamide, and the sum of the parts by weight of the components a) to d) is 100.

Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN), wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON.

Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a.

Abstract: Multilayer films of polyamide and polypropylene which have good layer adhesion and are suitable for a back cover of a solar module are provided. In a first embodiment, the multilayer film contains in the order listed: a) a layer containing at least 35% by weight, of polyamide; c) a layer containing at least 35% by weight of a polypropylene; and e) a layer containing at least 35% by weight, of polyamide; wherein the layer c) further comprises a polypropylene having acid anhydride groups or a polypropylene compatible functionalized polyolefin having functional groups to adhere the layer c) to each of layers a) and e). In a second embodiment adhesion promoter layers are present between the respective polyamide and polypropylene layers.

Abstract: The invention provides a biocatalytic process for oxidation of organic compounds with the aid of an alkL gene product, and microorganisms used in this process.

Abstract: The invention relates to a whole-cell catalyst which expresses a recombinant ?-dioxygenase or the combination of a recombinant fatty acid reductase and a phosphopantetheinyl transferase which phosphopantetheinylates the fatty acid reductase, and which expresses, in addition to the ?-dioxygenase and/or the combination of fatty acid reductase and phosphopantetheinyl transferase, a transaminase, wherein the phosphopantetheinyl transferase and/or transaminase is preferably recombinant; and also to a process for converting a carboxylic acid or dicarboxylic acid or a monoester thereof to an amine or diamine, comprising the steps of contacting the carboxylic acid or dicarboxylic acid or the monoester thereof with a phosphopantetheinylated fatty acid reductase or an ?-dioxygenase and contacting the product with a transaminase.

Abstract: The present invention relates to a method for removing an organic compound from an aqueous solution, comprising the steps of providing the aqueous solution which contains the organic compound, and a hydrophobic organic solution, where the latter comprises a liquid hydrophobic cation exchanger, contacting the aqueous solution and the hydrophobic organic solution, and separating off the hydrophobic organic solution from the aqueous solution, wherein the liquid hydrophobic cation exchanger is a saturated alkanoic acid having at least one alkyl substituent, where the organic compound is an organic compound having at least one positive charge and a neutral or positive total charge.

Abstract: The invention relates to a method for oxidizing a fatty acid or an ester thereof of formula (I) H3C—(CH2)n-COOR, wherein R is selected from the group that comprises H, methyl, ethyl, propyl, and butyl, wherein n is 0 to 30, preferably 6 to 24, comprising the step of oxidizing the fatty acid or the ester thereof by contacting the fatty acid or the ester thereof with a cytochrome P450 monooxygenase of the CYP153 family in the presence of molecular oxygen and NAD(P)H and a whole-cell catalyst that expresses a recombinant cytochrome P450 monooxygenase of the CYP153 family, a recombinant alcohol dehydrogenase, a recombinant transaminase, and optionally one or more than one recombinant enzyme from the group comprising alanine dehydrogenase, ferredoxin, and ferredoxin reductase, and the use of said whole-cell catalyst to oxidize a fatty acid or an ester thereof.

Abstract: The present invention relates to a cell, which has been genetically modified relative to its wild type, so that in comparison with its wild type it is able to produce more ?-aminocarboxylic acids, more ?-aminocarboxylic acid esters or more lactams derived from ?-aminocarboxylic acids, starting from carboxylic acids or carboxylic acid esters. Furthermore, the present invention relates to a method for the production of a genetically modified cell, the cells obtainable by this method, a method for the production of ?-aminocarboxylic acids, of ?-aminocarboxylic acid esters or of lactams derived from ?-aminocarboxylic acids, the ?-aminocarboxylic acids, ?-aminocarboxylic acid esters or lactams derived from ?-aminocarboxylic acids obtainable by this method, a method for the production of polyamides based on ?-aminocarboxylic acids or based on lactams and the polyamides obtainable by this method.

Abstract: A process for preparing a ketone by conversion of a compound E which contains an epoxy group to the ketone in the presence of a mixture comprising at least one noble metal and at least one metal oxide as a catalyst system, wherein the metal oxide in the catalyst system is at least one of titanium dioxide and zirconium dioxide, and the process is conducted at 0 to 0.9 bar of hydrogen.

Abstract: A moulding composition, comprising at least 40 wt. % of the following components: a) 60 to 99 parts by wt. of a partially aromatic copolyamide which comprises as polymerized monomer units: I. 30 to 90 mol % of a combination of hexamethylenediamine and terephthalic acid; and II. 70 to 10 mol % of a lactam and/or of an ?-aminocarboxylic acid with 11 or 12 C atoms; and b) 40 to 1 parts by wt. of an olefinic copolymer comprising as polymerized monomer units: i) 35 to 94.9 wt. % of ethene-based monomer units, ii) 5 to 65 wt. % of monomer units based on a 1-alkene with 4 to 8 C atoms, iii) 0 to 10 wt. % of monomer units based on an olefin different from i) and ii), and iv) 0.1 to 2.5 wt. % of monomer units based on an aliphatically unsaturated dicarboxylic acid anhydride, wherein a sum of the weight % values of i), ii), iii) and iv) is 100%, and the sum of the parts by wt. of a) and b) is 100; which can is processed into moulded articles with improved thermal aging resistance is provided.

Abstract: A moulding composition, comprising at least 40 wt. % of the following components: a) 60 to 99 parts by wt. of a partially aromatic copolyamide which comprises as polymerized monomer units: I. 30 to 90 mol % of a combination of hexamethylenediamine and terephthalic acid; and II. 70 to 10 mol % of a combination of hexamethylenediamine and a linear aliphatic dicarboxylic acid with 8 to 19 C atoms; and b) 40 to 1 parts by wt. of an olefinic copolymer comprising as polymerized monomer units: i) 35 to 94.9 wt. % of ethene-based monomer units, ii) 5 to 65 wt. % of monomer units based on a 1-alkene with 4 to 8 C atoms, iii) 0 to 10 wt. % of monomer units based on an olefin different from i) and ii), and iv) 0.1 to 2.5 wt. % of monomer units based on an aliphatically unsaturated dicarboxylic acid anhydride, wherein the sum of the wt. % values of i), ii), iii) and iv) is 100%, and the sum of the parts by wt.