Abstract: Non-aggregated carbon-coated silicon particles are prepared, which have average particle diameters d50 of 1 to 15 ?m and contain ?10 wt. % carbon and ?90 wt. % silicon relative to the total weight of the carbon-coated silicon particles, by treating dry mixtures containing silicon particles and one or more polymeric carbon precursors, which contain one or more oxygen atoms and one or more heteroatoms selected from the group consisting of nitrogen, sulfur and phosphorus, in oxidative atmosphere at a temperature of 200 to 400° C. (thermal treatment) and subsequently performing carbonization in inert atmosphere.

Abstract: A lithium-ion battery and a method for pre-lithiating a silicon-containing anode for use therein. The method includes providing a lithium-ion battery including a cathode having a lithium transition metal oxide, an anode, a separator, and an organic electrolyte. Where the end voltage during a battery charging cycle procedure U1 is between 4.35 V and 4.80 V. During subsequent battery charging cycles, the end voltage during discharging of the battery U2 does not drop below 3.01 V and where during subsequent battery charging cycles, the end voltage during charging of the lithium-ion battery U3 is lower than the end voltage during charging of the lithium-ion battery U1. The lithium-ion battery is charged by the cc/cv method and the end voltage during subsequent discharging of the lithium-ion battery U4 is lower than the end voltage during discharging of the lithium-ion battery U2 and does not drop below 3.01 V.

Abstract: A process for preparing siloxanes, wherein at least one alkoxy-organosilicon compound selected from compounds of the general formula (I) and/or from compounds of the general formula (II) is/are reacted in the presence of a cationic silicon and/or germanium compound at a temperature of ?40 to 250° C.

Abstract: A composition for hydrophilic treatment of fibrous substrates that is washfast in terms of softness contains derivatives of amino-functional organopolysiloxanes containing siloxane units of a general formula (I), optionally siloxane units of a general formula (II), siloxane units of general formula (III), and siloxane units of a general formula (IV). Impurities of octamethylcyclotetrasiloxane (D4 cyclics), decamethylcyclopentasiloxane (D5 cyclics) and dodecamethylcyclohexasiloxane (D6 cyclics) are present in proportions of less than 0.1% by weight in each case and after a storage time of 20 days at a temperature of 50° C. the proportions of D4 cyclics, representative of D4, D5 and D6, remain below 0.1% by weight in each case, based in each case on the total weight of the derivatives of amino-functional organopolysiloxanes.

Abstract: Silicon granulate is produced in a fluidized bed reactor having a fluidized bed region fluidized by a gas flow and heated by a heating apparatus. Seed particles and a feed gas including hydrogen and silane and/or halosilane is continuously supplied, and elemental silicon is deposited on the seed particles to form the silicon granulate, which is discharged as a continuous product stream from the reactor. The fluidized bed temperature affects the quality and formation of the product stream, which may be determined as the temperature of an offgas stream from the fluidized bend region. The temperature, as a responding variable may be determined and controlled by means of the mass and energy balance of a defined scheme.

Abstract: Foamable silicone compositions, containing (A) at least one organopolysiloxane containing at least two alkenyl groups bonded to silicon per molecule, (B) at least one organopolysiloxane containing at least two hydrogen atoms bonded to silicon per molecule, (C) at least one porogenic agent generating gaseous hydrogen in the presence of component (B), and (D) at least one hydrosilylation catalyst. Foams obtained by curing such foamable silicone compositions have excellent resilience, moderate hardness, good mechanical properties, and flame retardancy, suitable for the sealing of battery pack cases.

Abstract: Silicon carbon composite particles and anode materials for use within lithium-ion batteries utilizing the silicon carbon composite particles. Where the silicon carbon composite particles have an alkali metal or alkaline earth metal concentration of 0.05 to 10 wt% and a pH > 7.5.

Abstract: Moisture-curing coating compositions, processes for making the same and uses for the same. The composition includes a Component (A) of one or more linear hydroxyl terminated organopolysiloxanes, a Component (B) of one or more organopolysiloxane resins, a Component (C) of one or more organosilicates, a Component (C) of one or more organosilicates, a Component (D) of one or more alkoxysilanes having at least one tertiary amino group, a Component (E) of one or more alkoxysilanes having at least one primary or secondary amino group and a Component (F) of one or more UV-fluorescent pigments. Where the one or more alkoxysilanes having at least one tertiary amino groups (D) have the following general formula (IV) R3R4N—(CR52)—Si(R2)3-x(OR1)x.

Abstract: Block-modified polysiloxanes and compositions comprising the block-modified polysiloxanes are useful in the field of textile finishing. Emulsions comprising the compositions have a very small and narrowly distributed particle size which increases penetration, and provide good softening properties coupled with good hydrophilicity.

Abstract: Alkyl-silicates and alkyl-silicate-containing organosilicon compounds. The alkyl-silicate-containing organosilicon compound includes at least 90% by weight, preferably at least 95% by weight, of alkyl silicates of average formula (I) Where the radicals Rx are each independently selected from radicals that meet at least one of the following conditions: (a) where Rx is a substituted or unsubstituted, C4-C20 hydrocarbon radical that is branched at the ?-carbon atom, (b) where Rx is a substituted or unsubstituted, C5-C20 hydrocarbon radical that is doubly branched at the ?-carbon atom, and/or (c) where Rx is an unsubstituted or alkyl-substituted cyclopentyl, cyclohexyl or cycloheptyl radical having a total of not more than 9 carbon atoms. Where the radicals R3 are each independently selected from (i) hydrogen, (ii) methyl radical, and (iii) ethyl radical.

Abstract: A cross-linkable composition along with processes for producing the same, uses for the same and articles made therefrom. The cross-linkable composition includes (A) at least one organic compound that is free of siloxane units having at least two reactive cyanate ester groups (?“N?C—O—”) and (B) at least one cyclosiloxane having the general formula (I) [RaRb1SiO2/2]m ??(I). Where R may be identical or different and represents monovalent, SiC-bonded, saturated aliphatic hydrocarbon radicals; where R1 may be identical or different and represents monovalent, SiC-bonded, halogen- or phosphorus-substituted, aromatic hydrocarbon radicals; where a is 0, 1 or 2, preferably 0 or 1, particularly preferably 0; where b is 0, 1 or 2, preferably 1 or 2, particularly preferably 2; where m is 3, 4 or 5, preferably 3 or 4, particularly preferably 4; and where a+b is 2 and at least three radicals R1 are present per siloxane molecule (B).

Abstract: Genetically modified microorganism strains for the fermentative production of cysteine provide higher yields of L-cysteine or L-cystine during fermentation. Cysteine production is improved in the genetically modified microorganism strains by attenuating or inactivating phosphoenolpyruvate synthase enzyme activity, alone or in combination with the overexpression of efflux proteins and proteins that reduce feedback inhibition by cysteine and by serine.

Abstract: A silirane-functionalized compound, a process for preparing the same, and a process for preparing siloxanes using a silirane-functionalized compound are described herein.

Abstract: A transport container. The transport container is used for the packaging and transportation of silicon fragments. Where the transport container includes 8 to 14 flat film bags or 8 to 12 flat double film bags that contain an amount of the silicon fragments therein.

Abstract: A composition crosslinkable by condensation reaction and producible using (A) organopolysiloxanes of the formula (R2O)3-aSiR1aO(SiR2O)nSiR1a(OR2)3-a (I), (B1) silanes of the formula R34-b(R4O)bSi (II), and optionally (B2) silicon compounds consisting of units of the formula R7c(R8O)dSiO(4-c-d)/2 (III). The composition contains organosilicon compounds having a molecular weight of less than or equal to 195 g/mol maximally in amounts of less than 0.5 wt%, based on organopolysiloxane (A).

Abstract: Polycrystalline silicon is produced in a chemical vapour deposition reactor, wherein, outside the reactor at at least one position on at least one reactor component, vibrations of the reactor are measured using a measurement device and optionally recorded. The vibrations may be used to identify rod fall over and other events occurring within the reactor.

Abstract: Metallurgical silicon containing impurities of carbon and/or carbon-containing compounds is classified and subsequently used selectively for chlorosilane production. The process comprises the steps of: a) determining the free carbon proportion which reacts with oxygen up to a temperature of 700° C., b) directing metallurgical silicon in which the free carbon proportion is ?150 ppmw to a process for producing chlorosilanes and/or directing metallurgical silicon in which the free carbon proportion is >150 ppmw to a process for producing methylchlorosilanes. As a result of the process, metallurgical silicon having a total carbon content of up to 2500 ppmw can be used for producing chlorosilanes.

Abstract: Compositions containing an aliphatically unsaturated silicone resin, an organic compound containing a (meth)acrylate or (meth)acrylamide group, a free radical initiator, and an organylammonium salt are useful in preparing composite articles, especially artificial stone.

Abstract: Polyvinyl alcohol-stabilized (meth)acrylic ester polymers, processes for preparing and uses for the same. Where the polyvinyl alcohol-stabilized (meth)acrylic ester polymers have particle sizes Dw of from 100 to 900 nm in the form of aqueous dispersions or water-redispersible powders. Where the (meth)acrylic ester polymers are based on (a) 1% to 30% by weight of one or more vinyl esters of carboxylic acids having 5 to 15 carbon atoms, (b) 20% to 80% by weight of one or more (meth)acrylic esters, wherein the homopolymer of which has a glass transition temperature Tg of ?20° C., (c) 10% to 70% by weight of one or more (meth)acrylic esters, wherein the homopolymer of which has a glass transition temperature Tg of ?50° C., and (d) optionally one or more further ethylenically unsaturated monomers. The percentages by weight are based on the total weight of the (meth)acrylic ester polymers.

Abstract: Powder paint composition, processes for preparing and uses for the same. The composition includes (a) at least one polymer powder redispersible in water, (b) pigment and filler and (c) optionally further additives. Where (a) is a polymer stabilized with polyvinyl alcohol, based on (a1) 20 to 100% by weight of at least one monomer from the group consisting of acrylic esters of branched or unbranched alcohols having 1 to 12 carbon atoms, (a2) 0 to 60% by weight of at least one monomer from the group consisting of methacrylic esters of branched or unbranched alcohols having 1 to 12 carbon atoms and styrene, (a3) 0 to 40% by weight of at least one monomer from the group consisting of vinyl esters of branched or unbranched carboxylic acids having 2 to 12 carbon atoms, and (a4) 0 to 20% by weight of other ethylenically unsaturated comonomers copolymerizable therewith.