Abstract: Small particulate expandable styrene polymer molding compositions are prevented from acquiring static charges by coating with betaines.

Abstract: A method of purifying tertiary amines by removing sec. and prim. amines and/or their hydrochlorides produced in the manufacture of the tertiary amines. The impurities are removed by dissolving the impure tertiary amines in an organic solvent and the resulting solution is passed over absorbents such as aluminum oxides having a specific surface area of about 100 to 400 square meters per gram. The sec. and prim. amines and/or their hydrochlorides are retained on the adsorbents and pure tertiary amines are useful in the solvents or can be separated therefrom. The adsorbents are regenerated by passing polar solvents thereover to remove the sec. and prim. amines and/or their hydrochlorides.

Abstract: The manufacture of hydrogen and oxygen by the dissociation of water vapor at elevated temperatures followed by separation of hydrogen from the water vapor and the oxygen produced using a hydrogen permeable membrane is improved by increasing the surface area of the membrane exposed to the dissociation gas mixture.One way of increasing the surface area of contact, according to the present invention, is to form a hydrogen permeable membrane coated on one side of a porous refractory wafer with an inlet hole through the wafer connecting a beginning of the maze and an outlet at the end of the maze facing the opposite direction from the inlet. A number of these wafers are then stacked or replicated front-to-back with each outlet corresponding to the inlet of the next wafer to give a compact and efficient hydrogen diffusion separator.

Abstract: A method of separating HBr from a mixture of HBr/HCl using the difference in the stability to heat of the amine hydrohalides thereof. A mixture of HBr/HCl is treated with a solution of an amine and the HCl is split off, by the action of heat, from the amine hydrochlorides in the resulting mixture of amine hydrochlorides and amine hydrobromides, and the HBr is then recovered from the residual amine hydrobromides with the aid of a base and optionally recovered.

Abstract: A gas level indicator incorporates two Taguchi-type sensing elements, one of which is to receive air to be sampled and the other of which is insulated therefrom. A comparator circuit receives the outputs of the two elements, and an indicator actuated by the output of the circuit announces the result of the comparison. Preferably, both sensing elements are mounted in a single housing, and an elongated pipe and a fan or aspirator provided to form a probe for drawing air to be sampled from a remote position to the one element.

Abstract: Air outlet tubes for air conditioning systems are subdivided into a plurality of tube portions which are provided with corresponding positive and negative coupling elements at either end. The tube portions are of different form and length so that complete air outlets may be assembled which suit the particular requirements of each working place, desk etc. to be ventilated. With one end the air outlets are plugged into a blow-out hole which is part of the air duct extending underneath the floor. The negative and positive coupling elements may also include plugs and sockets for electric wires and telephone cables which run inside the tube portion. When the outlet tube is assembled from a plurality of tube portions each plug fits into the corresponding socket so that an outlet tube is obtained which does not only conduct the conditioned air but also includes the supply lines for the electric light and the telephone.

Abstract: An adjustable hand lever having a vertically adjustable tripod base, an adjustable fulcrum point and a grab link at the working end of the lever. The grab link accomodates and makes adjustable linked working chains.

Abstract: Isobutyraldehyde is produced by the oxo process and converted to acetone in the gas phase by oxidative decarbonylation on a zinc oxide supported copper oxide catalyst. The conversion is improved by adding about 2.5 to 25 percent by weight graphite to the catalyst, based on the total weight of catalyst.

Abstract: An aqueous polybutadiene dispersion is applied as the adhesive intermediary layer in the preparation of polyamide coatings on metal objects by a process of sintering the polyamide powders.The dispersion contains a liquid polybutadiene with a dynamic viscosity from about 70 to 30,000 millipascal seconds and with a configuration of 40 to 95% of cis-1,4-polybutadiene, 0 to 30% of trans-1,4-polybutadiene, 1 to 60% of 1,2-polybutadiene and, referred to the polybutadiene, 0.5 to 10% by weight of an emulsifier.

Abstract: The washing of domestic animals, particularly pets, is facilitated by the brush of the present invention which has reservoirs for animal grooming aids such as soap and cream rinse and a hose connected water supply for applying and removing the grooming aids. The reservoirs are maintained under positive pressure by connection to a back pressure chamber in the head of the brush, finger control valves introduce the grooming aids into a mixing chamber and the mixing chamber is also connected to the back pressure chamber. Vortex generators in the mixing chamber mix together the incoming water and the grooming aids and expel the mixture through holes in the brush at the base of the bristles.

Abstract: Suspension agent for synthetic resin powders comprising an aqueous emulsion wherein there is contained, in a concentration of about 1-7.5 percent by weight:(A) a mixture of about 95-40 molar percent of an aminoamide of the general formula ##STR1## wherein R represents a saturated or unsaturated hydrocarbon group having 13-19 carbon atoms,n represents an integer of between 2 and 6, andR.sub.1 and R.sub.2 represent alkyl groups having 1-3 carbon atoms; and(B) about 5-60 molar percent of a fatty acid or mineral acid salt of this aminoamide.

Abstract: It has been known that metals of groups IV-B, V-B, and VI-B of the periodic table, namely chromium, hafnium, molybdenum, niobium, tantalum, titanium, tungsten, vanadium, and zirconium and alloys thereof can be electrodeposited as dense, structurally coherent plates from a solution of the refractory metal fluoride in a molten alkali-flouride mixture in which the concentration of oxygen is reduced to and maintained at the sufficiently low level. It is shown that niobium may be plated at a lower temperature and a higher rate when the oxygen concentration is reduced to lower levels than previously attainable.

Abstract: A method of manufacturing hydrogen chloride by splitting off hydrogen chloride from solutions of amine hydrochlorides. The hydrogen chloride is split off by heating the amine hydrochlorides at 100.degree. to 250.degree. C. in an inert, organic, essentially non-polar solvent having a boiling point at least 20.degree. C. above the temperature of heating while an inert gas stream is passed therethrough. The hydrogen chloride is then separated from the exiting mixture of inert gas and hydrogen chloride. The amine components of the amine hydrochlorides are tertiary alkylamines, tertiary aryldialkylamines, secondary arylalkylamines, primary alkylarylamines or mixtures thereof which contain 14 to 36 carbon atoms in the side chains bonded to nitrogen. Not more than one of the side chains of the amine component is a methyl group bonded to nitrogen and at least one of the side chains is an aliphatic radical, bonded to nitrogen, containing at least 6 carbon atoms. The inert solvents boil above 120.degree. C.

Abstract: The process for the preparation of shaped bodies based on expanded styrene polymers comprising: the polymerization of styrene or a mixture thereof with at least one monomer copolymerizable therewith, the addition of an expanding agent, pre-forming of the resulting expandable particles, ageing of the pre-formed particles, and molding thereof in a pressure resistant mold, is improved in the decrease of the minimum mold dwell time by carrying the polymerization in the presence of 0.0005 to less than 0.01% by weight based on the styrene polymer of organic bromine compounds which give a chain transfer constant of at least 200 and at 100.degree. C. in bidistilled water the bromine compounds split off less than one molar % of hydrogen bromide per equivalent of bromine present in the molecule.

Abstract: The ingredients of beer and/or wort, particularly alcohol, extract, wort and carbon dioxide are determined individually by passing infrared light through the beer where a wavelength between 2.9 and 3.1 microns is used for the alcohol ingredient, a wavelength between 9.6 and 9.8 microns is used for the extract or the flavorings, and a wavelength from 4.2 to 4.4 microns is used for the carbon dioxide ingredient, each absorption of infrared being measured and analyzed.

Abstract: The processing of liquid chlorinated hydrocarbon residues, which may contain solids and which form viscous to solid deposits during the separation of readily boiling components, into(1) distillable organic components,(2) hydrogen chloride, and(3) solid matter with a low chlorine content,is improved by gently concentrating the residues in a first step and, in a second step, decomposing the residues at temperatures of about 200.degree.-400.degree. C., preferably 270.degree.-330.degree. C., with a continuous separation of the vapor phase components from the solid components.

Abstract: In a grating measuring system of a basic type originated by DeLang employing a concave mirror-lens main optical system introduced by Dyson, improved separation of the light fluxes of input illumination and output motion-modulated signals is achieved. The arrangement depends upon the fact that in such a system wherein the grating is imaged back on itself so that for every point in the half plane containing the grating surface at one side of the optical axis, there is a conjugate point in the half plane at the other side of the axis. Separation by reason of beam separation is attained by illuminating one half plane and deriving output signals from the other. Further separation is attained from the fact that the concave mirror lies in a so-called "complementary plane" or "Fourier plane" to the object-image plane. Each point in the complementary plane is the focus of all rays originating in the object-image plane in a particular direction.

Abstract: A lighting system having a high output lamp constituting an approximately point-shaped light source and a plurality of transparent shells disposed about the high output lamp, each of which shells has a central opening, an inner rim face about the opening and an outer rim face about the periphery of the shell. At least a major portion of the light emitted by the lamp is received by the inner rim faces of the shells and is transmitted by total reflection between the opposite side walls of each of the shells to and out of the outer rim faces of the shells, from which the light emerges.

Abstract: Process for coloring and toning water-diluted coating agents with pigment pastes. At least one film pack which is made of water-soluble films, sealed on all sides and filled with a pigment paste is immersed in the water-diluted coating agent, and after dissolution of the pack, the paste is uniformly dispersed. The pigment paste comprises:I. inorganic and/or organic pigments and/or;II. extenders and/or fillers, components I and II being dispersed in components III and IV;III. 10-80% by weight of the sum of the amounts by weight of components I and II of monohydric primary, secondary or tertiary aliphatic straight-chain or branched alkanols with 1 to 4 carbon atoms, alkylene glycols, alkylene glycol monoalkyl ethers with 1 to 4 carbon atoms in the alkyl radical, polyalkylene glycols, polyalkylene glycol monoalkyl ethers with 1 to 4 carbon atoms in the alkyl radical, alicyclic alcohols, araliphatic alcohols or unsaturated alcohols; andIV.

Abstract: Process for the preparation of pure methyl tert.-butyl ether. Isobutene or isobutene-containing hydrocarbon mixtures are reacted with methanol in a molar ratio of 1:1 to 1:2 in the liquid phase at temperatures of between 30.degree. and 100.degree. C. on sulfonated, strongly acidic, macroporous organic ion exchange resins. After separation of the unreacted hydrocarbons, the reaction mixture is distilled under pressure; the methanol-containing distillate formed during the distillation is recycled into the zone of the reaction between methanol and isobutene; and pure methyl tert.-butyl ether is withdrawn from the sump of the distillation column.