Abstract: A process for the combustion of a liquid in a combustion chamber includes atomizing liquid sulfur using a rotary atomizer and introducing the liquid sulfur into the combustion chamber. The liquid sulfur is charged onto an inside of a cup. The cup is rotated so as to form a liquid film on the inside of the cup and so that parts of the liquid film arc radially flung off from an edge of the cup edge into the combustion chamber. The rotational speed of the cup is varied so as to control a thickness of the liquid film in the cup to between 200 and 1000 ?m. The liquid sulfur is evaporated and subsequently burnt in the combustion chamber.

Abstract: The invention relates to compensation films for liquid-crystal displays with additions of rod-shaped liquid crystals mentioned below, to polarizer plates which have at least one compensation film of this type, to liquid-crystal displays which have compensation films of the said type, and to processes for the production of the said compensation films, polarizer plates and liquid-crystal displays, to the use of the compounds described in greater detail below as additions to compensation films for liquid-crystal displays, and to further subject-matters of the invention which can be seen below.

Abstract: The invention provides a process for preparing polysilanes of the general formula (1) SinR2n+2 (1), in which silane of the general formula (2) R1mSiH4-m (1a) is converted in the presence of boron compounds of the general formula (3) R23B (3), where R1 is a hydrocarbyl radical having 1 to 18 carbon atoms, R is hydrogen or an R1 radical, R2 is fluorine, chlorine, bromine or a hydrocarbyl radical which has 1 to 18 carbon atoms and may bear substituents selected from fluorine, chlorine, bromine, iodine and NO2, n has integer values from 2 to 100,000, and m is 0, 1 or 2.

Abstract: A macrocycle based on ?-diketimines, a process for preparing the inventive macrocycle, an uncharged macrocyclic dimetallic complex based on the inventive macrocycle, and a process for preparing the uncharged macrocyclic dimetallic complex, the use of the uncharged macrocyclic dimetallic complex as a polymerization catalyst in the polymerization of carbon dioxide with one or more epoxides, a process for preparing polycarbonates by reacting carbon dioxide with one or more epoxides in the presence of the inventive uncharged macrocyclic dimetallic complex, and a polycarbonate prepared by the process according to the invention.

Abstract: The present invention relates to a process for preparing carbonates by reacting propylene oxide, ethylene oxide, styrene oxide and/or cyclohexene oxide with carbon dioxide in the presence of one or more catalysts of the formula I where R1 is hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, NR?4—(CH2)2-6—where R? is C1-C6-alkyl; R2 is hydrogen, C1-C4-alkyl, C1-C4-haloalkyl, halogen, amino, nitro, C1-C6-alkoxy or cyano; R3, R4 are each hydrogen or together are a butadienylene moiety which bears the R5 substituent; R5 is C1-C4-alkyl, C1-C4-haloalkyl, halogen, amino, nitro, C1-C6-alkoxy or cyano; M is Zn(II), Mg(II), Cr(II), Cr(III), Co(II), Co(III), Fe(II) or Fe(III); and X1, X2 are each OCOCH3, OCOCF3, OSO2C7H7 or halogen. More particularly, the invention relates to a process for preparing cyclic carbonates, and to a process for preparing aliphatic polycarbonates using these catalysts I, and to particularly preferred catalysts of the formulae Ia and Ib.

Abstract: In the case of a string of a musical instrument (1) with at least one composite core (2), wherein the at least one composite core (2) comprises a first core element (3) and a second core element (4), to achieve high volumes with little expenditure of force to excite the string as well as a rapid and precise response to quick changes of excitation, in particular quick bow changes, to achieve a natural sound and to extend a musician's artistic range, it is proposed that the first core element (3) and the second core element (4) comprise at least one organic material, and that the first core element (3) and the second core element (4) are joined at least in certain regions by means of a first polymer element (11) lying therebetween.

Abstract: Disclosed are novel liquid-crystal compounds, processes and intermediates for the preparation thereof, the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays containing the same.

Abstract: A process for preparing hyperbranched polyols by reacting epoxy alcohols in the presence of phosphines.

Abstract: The invention provides a process for preparing polysilanes of the general formula (1) SinR2n+2 (1), in which silane of the general formula (2) R1mSiH4-m (1a) is converted in the presence of boron compounds of the general formula (3) R23B (3), where R1 is a hydrocarbyl radical having 1 to 18 carbon atoms, R is hydrogen or an R1 radical, R2 is fluorine, chlorine, bromine or a hydrocarbyl radical which has 1 to 18 carbon atoms and may bear substituents selected from fluorine, chlorine, bromine, iodine and NO2, n has integer values from 2 to 100,000, and m is 0, 1 or 2.

Abstract: In the case of a string of a musical instrument (1) with at least one composite core (2), wherein the at least one composite core (2) comprises a first core element (3) and a second core element (4), to achieve high volumes with little expenditure of force to excite the string as well as a rapid and precise response to quick changes of excitation, in particular quick bow changes, to achieve a natural sound and to extend a musician's artistic range, it is proposed that the first core element (3) and the second core element (4) comprise at least one organic material, and that the first core element (3) and the second core element (4) are joined at least in certain regions by means of a first polymer element (11) lying therebetween.

Abstract: Compensation films for liquid crystal displays, polarizer plates having at least one such compensation film, liquid crystal displays having compensation films, and a method for producing compensation films, polarizer plates, and liquid crystal displays, as well as the use of compounds of the formula (I) described below in more detail as additives to compensation films for liquid crystal displays is provided. The optical compensation films include one or more rod-shaped liquid crystals of the formula (I) as additives, wherein the radicals have the meanings provided in the description for adjusting suitable retardation values Re and Rth.

Abstract: The invention relates to compensation films for liquid-crystal displays with additions of rod-shaped liquid crystals mentioned below, to polariser plates which have at least one compensation film of this type, to liquid-crystal displays which have compensation films of the said type, and to processes for the production of the said compensation films, polariser plates and liquid-crystal displays, to the use of the compounds described in greater detail below as additions to compensation films for liquid-crystal displays, and to further subject-matters of the invention which can be seen below.

Abstract: Disclosed are novel liquid-crystal compounds, processes and intermediates for the preparation thereof, the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays containing the same.

Abstract: The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.

Abstract: Lactones are prepared by catalytic carbonylation of oxiranes using a catalyst system comprising a) at least one cobalt compound as component A and b) at least one metal compound of the formula (I) as component B, MXxRn-x ??(I) where M is an alkaline earth metal or a metal of group 3, 4 or preferably 12 or 13 of the Periodic Table of the Elements, R is hydrogen or a hydrocarbon radical which may be substituted on the carbon atoms other than the carbon atom bound to M, X is an anion, n is a number corresponding to the valence of M and x is in the range from 0 to n, with n and x being selected so that the compound is uncharged, as catalyst.

Abstract: The present invention relates to a catalyst combination for producing linear isotactic polymers containing an asymmetrical metal complex and also an activator.

Abstract: The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.

Abstract: Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1=Q2=H and simultaneously X=CN, Y and/or Z are F.

Abstract: Described are matrix liquid crystal displays having two plane parallel support plates which together with a frame form a cell, integrated non-linear elements for switching individual picture elements on the support plates and a nematic liquid crystal mixture which is present in the cell and has a positive dielectric anisotropy and high resistivity. The liquid crystal mixture has a nematic phase range of at least 60° C., a maximum viscosity at 20° C. of 30 mPa·s and a mean dielectricity constant ??8. The liquid crystal mixture contains: a) at least 10% by weight of a liquid-crystalline component B having one or more compounds of the following formulae: and b) up to 90% by weight of a liquid-crystalline component A having one or more compounds with a dielectric anisotropy of ?1.5 to 1.

Abstract: The present invention relates to liquid-crystal mixtures having specific resistance values, comprising acidic compounds. The present invention furthermore relates to liquid-crystal displays containing these liquid-crystal mixtures. The invention furthermore relates to compounds of the formula I, in which the parameters are as defined in the text, to their preparation, and to their use for achieving certain specific resistance values in liquid-crystal mixtures. The application also relates to a method of adjusting the specific resistance of liquid-crystal mixtures using acidic compounds.