Abstract: Fiberfill fibers are treated with aqueous dispersions of organopolysiloxanes obtained by reaction of condensation-curable organopolysiloxanes with silanes (R3O)3SiCR22—Y or their hydrolyzates, where R2 is hydrogen or a monovalent lower alkyl radical, R3 is an alkyl radical, Y is —NHR4, —NR42 or —NR5 in the presence of water, emulsifier and optionally further silanes (R3O)xR3-xSi—R6—Z or their hydrolyzates, where R6 is a divalent C2-18 hydrocarbyl radical and Z is an amino or aminoalkylamino, epoxy, or (meth)acryloyloxy radical, and x is 1, 2 or 3, and optionally further materials which do not take part in the reaction, wherein no metal-containing catalysts are used and that the organopolysiloxanes and silanes are used in such amounts that the organopolysiloxanes, after removal of water, form elastomeric films insoluble in toluene.

Abstract: Two or multi-component condensation curing compositions can be cured in deep sections with low shrinkage, yet require no tin catalysts, or a significantly reduced tin catalyst level.

Abstract: Two or multi-component condensation curing compositions can be cured in deep sections with low shrinkage, yet require no tin catalysts, or a significantly reduced tin catalyst level.

Abstract: Defoamer compositions which exhibit both high defoaming activity as well as good storage stability are prepared by mixing at least an organopolysiloxane having a defined but limited fraction of silicon-bonded hydroxyl and/or alkoxy groups and hydrophilic silica, followed by heating until the viscosity of the mixture has fallen to less than 50% of its value prior to heating.

Abstract: Highly concentrated oil-in-water aqueous emulsions of nitrogen-containing organopolysiloxanes are prepared by dispersing the organopolysiloxanes in water without substantial addition of acid, to form a flowable, dilutable, storage stable emulsion containing 45 weight percent or more organopolysiloxane and a pH of at least 7.5.

Abstract: Organosilicon emulsions of improved quality are prepared batchwise in a circulating loop containing a high shear mixer, while controlling the temperature and pressure within the loop.

Abstract: Aqueous dispersions of organopolysiloxanes are prepared by (a) reacting organopolysiloxanes having condensable groups with silanes: (R3O)3SiCR22—Y ??(II) or their hydrolyzates, where R2 is hydrogen or a monovalent C1-4 alkyl radical, R3 is a C1-8 alkyl radical, and Y is —CH2NHR4, —CH2NR42 or in the presence of water and emulsifier, (b) adding an aqueous silica dispersion, optionally mixed with a silane of the formula (II), (c) optionally adding an adhesion promoter, and (d) optionally adding of further materials which do not take part in reaction (a), with the proviso that no metal-containing catalysts are used and that the organopolysiloxanes and silanes are used in such amounts that the organopolysiloxanes form elastomeric films insoluble in toluene on removal of water.

Abstract: Fiberfill fibers are treated with aqueous dispersions of organopolysiloxanes obtained by reaction of condensation-curable organopolysiloxanes with silanes (R3O)3SiCR22—Y or their hydrolyzates, where R2 is hydrogen or a monovalent lower alkyl radical, R3 is an alkyl radical, Y is —NHR4, —NR42 or —NR5 in the presence of water, emulsifier and optionally further silanes (R3O)xR3-xSi—R6-Z or their hydrolyzates, where R6 is a divalent C2-18 hydrocarbyl radical and Z is an amino or aminoalkylamino, epoxy, or (meth)acryloyloxy radical, and x is 1, 2 or 3, and optionally further materials which do not take part in the reaction, wherein no metal-containing catalysts are used and that the organopolysiloxanes and silanes are used in such amounts that the organopolysiloxanes, after removal of water, form elastomeric films insoluble in toluene.

Abstract: Dispersions of crosslinked organopolysiloxanes are prepared by reacting an alkoxy- or hydroxy-functional organopolysiloxane, in a dispersion medium, with an alkoxysilane bearing at least one further group which increases the reactivity of the silane alkoxy groups such that the viscosity at least doubles within a period of 2 hours.

Abstract: Defoamer compositions which exhibit both high defoaming activity as well as good storage stability are prepared by mixing at least an organopolysiloxane having a defined but limited fraction of silicon-bonded hydroxyl and/or alkoxy groups and hydrophilic silica, followed by heating until the viscosity of the mixture has fallen to less than 50% of its value prior to heating.

Abstract: Organosilicon emulsions of improved quality are prepared batchwise in a circulating loop containing a high shear mixer, while controlling the temperature and pressure within the loop.

Abstract: Aqueous silicone emulsions are prepared by emulsifying silicone, emulsifier, and water in a first high shear mixer, and introducing the viscous phase thereby obtained obtained, optionally with further components, into a second high shear mixture. A set point for temperature and pressure after each mixer is established, and the measured temperatures and pressures are used in a feedback loop to adjust process parameters such that the set points are maintained.

Abstract: Dispersions of crosslinked organopolysiloxanes comprises reacting siloxanes (1) A a ? R b ? X c ? SiO 4 - ( a + b + c ) 2 where A, X, R, a, b, and c are defined herein, the sum a+b+c?3, and there are at least one radical A and one radical —OR1 per molecule where R1 is H and/or siloxanes (2) containing units R b ? ( OR 1 ) d ? SiO 4 - ( b + d ) 2 where d is 0 or 1, the sum b+d?3, and there is at least one radical R1 which is hydrogen, or mixtures thereof, with silanes WRpSi(oR7)3-p or hydrolysis products thereof, where W is a monovalent radical —CR62—Y, where Y is a monofunctional halogen, monosubstituted O or S, or substituted N or P radical, R6 and R7 are as defined herein, and p is 0, 1 or 2, the presence of dispersion medium and emulsifiers, with the proviso that no metal-containing catalysts are used, and that siloxanes (1) and/or (2) and silanes (3) are present such that crosslinked organopolysiloxanes insoluble in toluene are obtained.

Abstract: Differential power analysis on an integrated circuit is made more difficult by providing a circuit configuration for generating current pulses in the supply current of the integrated circuit. These additional pulses that are generated in the supply current are synchronous with the edges of the internal clock signal of the integrated circuit. In this case, the pulse shape and also the amplitude and the time profile are similar to the pulses in the supply current which are generated by other circuit sections, for example by processors or by some other digital logic, and in digital circuits, typically correspond to a charging curve of a capacitor via a resistor. The circuit generates these additional pulses by using a delay element.

Abstract: Highly concentrated oil-in-water aqueous emulsions of nitrogen-containing organopolysiloxanes are prepared by dispersing the organopolysiloxanes in water without substantial addition of acid, to form a flowable, dilutable, storage stable emulsion containing 45 weight percent or more organopolysiloxane and a pH of at least 7.5.

Abstract: Differential power analysis on an integrated circuit is made more difficult by providing a circuit configuration for generating current pulses in the supply current of the integrated circuit. These additional pulses that are generated in the supply current are synchronous with the edges of the internal clock signal of the integrated circuit. In this case, the pulse shape and also the amplitude and the time profile are similar to the pulses in the supply current which are generated by other circuit sections, for example by processors or by some other digital logic, and in digital circuits, typically correspond to a charging curve of a capacitor via a resistor. The circuit generates these additional pulses by using a delay element.

Abstract: The invention relates to a process for altering the viscosity of organopolysiloxanes, wherein clay which has been treated with mineral acid and subsequently heated to from 250.degree. C. to 1200.degree. C. is used as catalyst. In the process, only small amounts of volatile siloxanes, in particular only small amounts of cyclic molecules, are formed.

Abstract: The invention relates to a method for preparing homogeneous dispersions of fluidizable bulk materials, wherein, in a first step, fluidizable bulk materials are blended with liquid to produce a raw dispersion and, in a second step, the raw dispersion is conveyed through a continuous enclosed dispersing apparatus by means of a forced-conveyance apparatus.

Abstract: The invention relates to a process for stabilizing organopolysiloxanes which contain phosphazenes and/or their reaction products which promote the condensation and/or equilibration of organopolysiloxanes. To stabilize any previously known organopolysiloxanes which contain phosphazenes and/or their reaction products against re-arrangements and also molecular weight changes and viscosity changes resulting therefrom, it is proposed that the said phosphorus compounds be brought into contact with at least one non-basic, solid adsorbent.

Abstract: The present invention relates to oxygen-containing chlorophosphazenes containing organosilicon radicals, in particular those of the formulaZ-PCl.sub.2 =N(-PCl.sub.2 =N).sub.n -PCl.sub.2 O (I)in whichZ is an organosilicon radical bonded to phosphorus via oxygen andn is from 0 to 6, processes for their preparation and their use in processes for the condensation and/or equilibration of organosilicon compounds.