Abstract: A composition comprising compound (I) of formula and compound (II) of formula wherein R2a and R2b independently from each other are a linear alkyl group with 1 to 4 carbon atoms and R1a, R1b, R3a to R6a and R3b to R6b independently from each other are a hydrogen atom or a linear alkyl group with 1 to 4 carbon atoms.

Abstract: The present invention relates to a method for the reductive amination of a carbonyl compound, comprising one or more carbonyl groups amenable to reductive amination, forming the corresponding primary amine, characterized in that the reaction is carried out in the presence of a homogeneously dissolved catalyst complex K, comprising at least one metal atom from Group 8, 9 or 10 of the periodic table, bearing a bidentate phosphane ligand, a carbonyl ligand, a neutral ligand and a hydride ligand, and also an acid as co-catalyst.

Abstract: In a process for discriminating cis- and trans-1,3-diaminocyclohexanes, a mixture of cis- and trans-1,3-diaminocyclohexanes is reacted with carbon dioxide or a reactive carbonic acid derivative and the urea of the cis-1,3-diaminocyclohexane, which can be separated off by means of a mechanical separation method, is obtained selectively. 4-Methylcyclohexane-1,3-diamine and/or 2-methylcyclohexane-1,3-diamine having a trans content of 99 mol % or more are obtainable in this way.

Abstract: Unsaturated compounds of formula (I): wherein: R1, R2, and R3 are each independently H or CH3; R4 is a linear or branched C1-C30-alkylene; R5 and R6 are each independently H, C1-C20-alkyl, C3-C15-cycloalkyl, aryl, —CH2—O—C1-C20-alkyl, or —CH2—O—C2-C20-alkenyl, where R5 and R6 may together form a C3-C6-alkylene; R7 is independently H,C1-C4-alkyl, or where R8 is C1-C22-alkyl or C2-C22-alkenyl; and n is an integer from 2 to 200. Mixtures and polymers including the unsaturated compounds of formula (I). A method for preparing polymers by free-radical polymerization of monomers including the unsaturated compounds of formula (I). A process for preparing polymers including polymer-analogous reactions. And polymers including compounds (I) as cement additives, grinding aids, hydraulic binder additives, concrete plasticizers, reactive plasticizers for preparing plastics, rubber, or latex, associative thickeners and antioxidants, or for preparing polyether siloxanes.

Abstract: A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent comprising a compound of the general formula (I), wherein R1 and R2 are independently C1-C4-alkyl; R3 is selected from hydrogen and C1-C4-alkyl, R4, R5 and R6 are independently selected from hydrogen and C1-C4-alkyl; x and y are integers from 2 to 4 and z is an integer from 1 to 3, to obtain a treated fluid stream and a laden absorbent. The process allows for a high cyclic capacity while the compounds of the absorbent have a reduced tendency to foaming and low volatility.

Abstract: 1,3-Diaminocyclohexanes of the general formula (I) are suitable for removing carbon dioxide from fluid streams where the radicals R are each, independently of one another, C1-4-alkyl; and n is an integer from 0 to 3. The amino groups of the 1,3-diaminocyclohexane are preferably arranged in trans position relative to one another in the plane of the cyclohexane ring. Absorption media for removing carbon dioxide from fluid streams comprise a) a 1,3-diaminocyclohexane of the general formula (I) and b) optionally at least one tertiary amine and/or a sterically hindered primary or secondary amine. In a process for removing carbon dioxide from fluid streams, the absorption medium is brought into contact with a fluid stream.

Abstract: The invention relates to a process for the production of 1,6-difunctionalized hexane derivatives from 1,3-diunsaturated hydrocarbons, preferably butadiene, wherein a hydroformylation with carbon monoxide and hydrogen is performed in the presence of an at least dihydric alkanol and during the hydroformylation the temperature is increased. The reaction yields the acetals of the 1,6-hexanedial derivatives which are isolated and further reacted to obtain the desired 1,6-difunctionalized hexane derivatives, in particular 1,6-hexanediamine, 1,6-hexanediol and adipic acid.

Abstract: A process for selectively separating H2S from a gas mixture which also comprises CO2 is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.

Abstract: A composition comprising compound (I) of formula and compound (II) of formula wherein R2a and R2b independently from each other are a linear alkyl group with 1 to 4 carbon atoms and R1a, R1b, R3a to R6a and R3b to R6b independently from each other are a hydrogen atom or a linear alkyl group with 1 to 4 carbon atoms.

Abstract: The present invention relates to a method for the reductive amination of a carbonyl compound, comprising one or more carbonyl groups amenable to reductive amination, forming the corresponding primary amine, characterized in that the reaction is carried out in the presence of a homogeneously dissolved catalyst complex K, comprising at least one metal atom from Group 8, 9 or 10 of the periodic table, bearing a bidentate phosphane ligand, a carbonyl ligand, a neutral ligand and a hydride ligand, and also an acid as co-catalyst.

Abstract: A process for selectively separating H2S from a gas mixture which also comprises CO2 is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.

Abstract: The present disclosure relates to a fingerprint sensor having a capture surface for capturing characteristic features of the surface of a finger of an operator and an associated analyzing unit, where the analyzing unit and the fingerprint sensor are designed to capture a movement of the characteristic features of the finger across the capture surface; and the analyzing unit is furthermore designed to detect a rotation movement of the finger and to associate a parameter of the rotation movement to a change of a control parameter, as long as the axis of rotation defined by the rotation movement intersects the capture surface.

Abstract: The present invention relates to mono- and bisalkylenetrialkoxysilanes of the general formula (I), in which: —Y— is —O— or —N(R9)2-a—; —Z— is in each case identical or different and selected from the group consisting of —O— and —CHR4b—; a is 1 if —Y—=—O—; and is 1 or 2 if —Y—=—N(R9)2-a—; m is a natural number from 1 to 20; n is a natural number from 7 to 200; R1 is in each case identical or different and selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, and phenyl; and R2, R3, R4a, R4b, R5, R6, R7R8, and R9 in each case independently are H, suitable linear or branched C1-C20-alkyl, or optionally C2-C20-alkenyl, C2-C20-alkynyl, C1-C20-alkanoyl, C3-C20-alkenoyl, ?-carboxy-(C1-C6-alkyl)carbonyl, and ?-carboxy-(C2-C6-alkenyl)carbonyl and/or C7-C20-aryloyl; to processes for preparing them and to their use as dispersants in aqueous suspensions composed of aggregates and hydraulic binders; and to these aqueous suspensions as such.

Abstract: A pump insert (50) for supporting a rotor (14) of a pump comprises an annular resilient support (52) for engaging the body (26) of the pump, the support (52) extending about a rolling bearing (10) having an inner race (12) for engaging the rotor (14), an axially preloaded outer race (16) fixed to the support (52), and a plurality of rolling elements (18) located between the races. During assembly, the rolling bearing (10) can be accurately positioned within the support (52) so that there is a very low tolerance stack-up when the insert (50) is fitted to the rotor (14). Consequently, the position of the rotor (14) will hardly change, if at all, when the rolling bearing (10) is replaced during servicing of the pump.

Abstract: A process for selectively separating H2S from a gas mixture which also comprises CO2 is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.

Abstract: Poly(oxyalkylene)oxy- and/or poly(oxyalkylene)aminoalkyltrialkoxysilanes are of the general formula (I) where —X— is —O— or —N(R4)2-a—; —Y— is —CH2—; —Z— is —O—(CH2)d—C(R5)2-c—; a is 1 if —X—?—O—, and is 1 or 2 if —X—?—N(R4)2-a—; b is 0 or 1; c is 0, 1 or 2; d is 0 or 1; m is independently from an integer from 1 to 6; p is a number from 7 to 200; R1 is independently methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, or phenyl; R2 is H or methyl; R3, R4, and R5 are independently H or linear or branched C1-C6-alkyl; R6 is independently H, methyl or ethyl; and R7 is H, linear or branched C1-C6-alkyl, linear or branched C1-C10-alkanoyl, or C6-C10-aryloyl; as dispersants for aqueous suspensions composed of aggregates and hydraulic binders, and to aqueous suspensions. Also provided: a process for preparing the alkyltrialkoxysilanes.

Abstract: The invention relates to a process for preparing nitroalkanes by reaction of at least one alkane with at least one nitrating agent in the gas phase, wherein the nitration is carried out in a microstructured reaction zone having parallel channels having hydraulic diameters of less than 2.5 mm and a total specific internal surface area of more than 1600 m2/m3 and the alkane and the nitrating agent are conveyed under a pressure of from 1 bar to 20 bar through the reaction zone and reacted at a temperature of from 150° C. to 650° C. and the reaction products are cooled downstream of the reaction zone and discharged and the at least one nitrating agent is introduced over from two to ten introduction points along the reaction zone.

Abstract: Unsaturated compounds of the general formula (I) where R1, R2, R3 are the same or different and are each independently H, CH3, R4 is a linear or branched C1-C30-alkylene, R5, R6 are the same or different and are each independently, H, C1-C20-alkyl, C3-C15-cycloalkyl, aryl, —CH2—O—C1-C20-alkyl, —CH2—O—C2-C20-alkenyl, where R5 and R6 may together form a C3-C6-alkylene, R7, is the same or different and is independently, H, C1-C4-alkyl, R8 is C1-C22-alkyl, C2-C22-alkenyl, and n is an integer from 2 to 200. Mixtures and polymers comprising compounds of the general formula (I). A method for preparing polymers wherein a free-radical polymerization of monomers comprising unsaturated compounds of the general formula (I) is carried out. A process for preparing polymers comprising polymer-analogous reactions.

Abstract: The present invention relates to methods for preparing a composition comprising an isoprenol-alkoxylate having an isoprene-content of not more than 1000 ppm. The present invention also relates to compositions prepared or obtainable by such methods. The present invention further relates to the use of peroxides for decreasing the isoprene-content in a composition.

Abstract: A safety guard for a tow bar has a first arm engageable with the tow bar and a second arm engageable with the tow bar. Each arm is independently pivotable with respect to the tow bar so that the safety guard can be angle adjusted to accommodate tow bars which extend to different lengths from the vehicle. Each arm is further formed so that when in use the safety guard present a shield around the tow bar to prevent people walking into the tow bar.