Abstract: An electrodeposition coating composition containing polymer microparticles of 0.01 to 20 microns size is disclosed. The polymer microparticles have a predetermined range of softening point, solubility parameter, refractive index or crosslinking density.

Abstract: A superconductor is prepared by suspending in a solvent a ceramics superconductive material having been fired and ground into fine powder, and then electrodepositing the material on an electrode by an electrophoretic means, or again firing the material after electrodeposition, thus preparing superconductors with various shapes. The superconductors thus prepared may be covered with a metal to improve processability.

Abstract: An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from the adjacent portions, structure for feeding the liquid bearing material into the inlet, structure for moving the liquid bearing material from the inlet to the outlet so that sections of the material serially move from the inlet to the outlet while being disposed between the adjacent portions, and a unit for creating a voltage arrangement between the pair of electrodes so as to create an electrostatic field arrangement between the adjacent portions of the pair of electrodes for acting through the material that is disposed therebetween to remove liquid from that material, the unit providing different voltages between different parts of the pair of electrodes so that different intensities of the electrostatic field arrangement serially act through each section of

Abstract: This invention relates to coating compositions which comprise a polymer having at least two hydroxy functional groups and a crosslinking agent having an average of at least two pendent ester groups of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, substituted alkyl or aryl groups; n is from about 1 to about 5; X is nitrogen, sulfur or phosphorus; and when X is either nitrogen or phosphorus, R.sup.3 is hydrogen, lower alkyl, or an aryl group; R.sup.4 is lower alkyl or an aryl group; and when X is sulfur, R.sup.4 is nothing and R.sup.3 is either hydrogen, lower alkyl or aryl.

Abstract: A process for enabling the separation of a mixture of DNA fragments comprising (1) providing an electrophoresis devive; (2) adding to the device a solution mixture containing DNA fragments of different lengths; (3) energizing the device, thereby creating a sequence of unidirectional uniform electric field pulses therein, said sequence of field pulses alternating between primary positive voltage pulses and secondary pulses of a negative or a positive polarity with less voltage than the primary pulses; (4) calculating the time duration and the field strength required for the primary and secondary field pulses to enable resolution of the fragments into separate and distinct groups corresponding their lengths; and (5) applying in the device the selected primary and secondary fields with intensities and durations corresponding to the size of fragments to be separated. Another embodiment of the invention comprises a computer program that facilitates a DNA gel electrophoresis process.

Abstract: In an exhaust gas treatment process, the exhaust gas is first irradiated in the presence of ammonia to produce particulates, and is then fed into an electrostatic precipitator and then to a mechanical filter device, whereby the treated effluent gas released into the atmosphere is caused to satisfy the relevant dust regulation values in addition to being substantially free of SO.sub.x and NO.sub.x.

Abstract: A potentiometric electrochemical analysis method, which comprises placing by capillary action an aqueous sample liquid to be tested for the presence of a quantity of an analyte in the sample liquid, in each of two compartments of an electrochemical analysis cell, wherein the aqueous sample liquid so placed in each compartment is in electrochemical contact with one of two electrodes forming part of the cell, wherein the electrodes are insensitive to the analyte, and wherein the compartments are separated by an electroactive barrier which is sensitive to or selective for the analyte, the barrier not being in electrical contact with either electrode except through the medium of the sample liquid, the method further comprising changing the amount of the analyte material in a selected one of the compartments by adding thereto a predefined standard quantity of analyte, measuring the resulting cell potential and determining the concentration of the analyte in the sample liquid, the predefined standard quantity of an

Abstract: A volatile chlorine-containing organic compound, e.g., trichloroethylene and tetrachloroethylene, contained in a vent gas as a pollutant of atmospheric air can be rapidly and efficiently decomposed into less harmful decomposition products by irradiating the vent gas with ultraviolet light having a wavelength of 400 nm or shorter while the vent gas is in contact with a titanium dioxide powder, for example, supported on the wall of a reactor through which the vent gas is passed.

Abstract: Surface activated surface alloy electrodes and a process for preparing them high in corrosion resistance and activity, comprising a corrosion-resistant metal selected from, or a corrosion-resistant alloy composed of two or more metals selected from titanium, zirconium, niobium and tantalum, or a corrosion-resistant metal selected from, or a corrosion-resistant alloy composed of two or more metals selected from titanium, zirconium, niobium and tantalum clad with a corrosion-resistant metal selected from, or a corrosion-resistant alloy composed of two or more metals selected from titanium, zirconium, niobium and tantalum, or with any other metal or alloy, rolled or non-rolled, being used as a substrate metal or alloy; an alloy consisting of 20 to 67 atomic % of one or more metals selected from titanium, zirconium, niobium and tantalum, 0.

Abstract: A process for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of (i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the uncured resin upon the surface of the substrate; (ii) immersing said film in a solution of a resin additive in a solvent medium comprising water and a water miscible organic solvent, the amount of said resin additive dissolved in said solvent medium being sufficient for the absorption into the resin film of sufficient additive to impart the desired property to the cured resin film, the composition of said solvent medium being such that the requisite amount of additive can be dissolved therein and such that said desired property is imparted to said resin film while immersed in said solvent medium without significant damage to the resin fim; and (iii) curing the resin.

Abstract: The present invention relates to a process for surface treatment for cathodic electrodeposit coating of a zinc-plated or zinc alloy-plated steel sheet comprising coating and drying a protective coating material on said steel sheet chromate-treated beforehand, to form a protective film before subjecting the sheet to the cathodic electrodeposit coating, which comprises coating a protective coating material having as a principal constituent of film-forming organic component a block isocyanate-containing prepolymer containing in one and the same molecule respectively at least one blocked isocyanate group, hydroxyl group, and tertiary amono group and containing 10-100 parts by weight of silica sol relative to 100 parts by weight of said prepolymer, in an amount of 0.3 g-4 g/m.sup.2, and then heat-drying the same.

Abstract: A gas sensing element, such as may be used to sense the presence of oxygen contained in the exhaust from a burner or internal combustion engine, whereby, by preventing the re-sintering of functional layers of the sensing element, a deterioration of the performance of the element under high-temperature operating conditions is prevented. The inventive sensing element includes a ceramic susbtrate, an electrode layer formed on the ceramic substrate, a first functional layer overlying the ceramic susbtrate and the electrode layer and which contains a transition metal oxide as a main component, and a second functional layer that cover the first functional layer and which contains 1 to 30 wt % of an anti-sintering agent and has a transition metal oxide as a main component.

Abstract: Cycloalkyl silane compounds such as cyclohexyl methyl dichlorosilane can be efficiently prepared by the photochemically induced hydrosilylation reaction. For example, an equimolar mixture of cyclohexene and methyl dichlorosilane with admixture of a catalytic amount of a platinum catalyst, which is an alcohol complex of chloroplatinic acid, is irradiated at a temperature of 70.degree. C. with ultraviolet light so that the hydrosilylation reaction takes place and proceeds almost to completeness without deactivation of the platinum catalyst to give the desired product in a yield of 90% or even higher. Unexpectedly, the efficiency of the reaction can be greatly increased when the platinum catalyst is prepared by heating a solution of chloroplatinic acid in 2-ethylhexyl alcohol at 50.degree. to 80.degree. C. for at least 4 hours.

Abstract: A process for dehalogenation of halogenated organic compounds comprising irradiating a two phase liquid solution containing said compounds with ultraviolet radiation. The two phase liquid is comprised of an organic phase and an alkaline aqueous phase with the halogenated organic compound in said organic phase, the ultraviolet treatment followed by a biological degradation to completely dehalogenate the organic compound.

Abstract: A process for preparing free standing polymeric belts which includes the steps of providing at least one sleeve electrode coaxially spaced apart from and surrounding at least one other electrode in a bath comprising a dispersion of electrically charged, thermoplastic film forming polymer particles in an organic liquid dispersion medium, the polymer particles having a weight average molecular weight of at least about 35,000 and being substantially insoluble in the organic liquid medium at electrodeposition temperatures and sufficiently soluble in the organic liquid medium at elevated temperatures to coalesce and form a viscous sol coating, applying an electric field across the electrodes until a thick, substantially uniform deposit of polymer particles forms on the interior surface of the sleeve electrode, removing the sleeve electrode bearing the deposit of polymer particles and residual liquid dispersion medium clinging to the deposit of polymer particles from the bath, heating the deposit to initially solub

Abstract: An ion sensitive electrode device and method of its use in analytical and clinical chemistry are provided for measuring the concentration of an ionizable analyte contained in an aqueous medium. The device with external circuit means includes an electrode pair adapted to be placed in electrochemical contact with the medium. The electrode pair includes a polarographically active base metal/metal oxide working electrode and a reference electrode. The external circuit means is adapted to measure the voltage generated by the electrode pair in open circuit and to measure the closed circuit current flow at a preselected impedance and including means for comparing said voltage and current flow values with predetermined reference standards to provide a third value representative of said analyte concentration.

Abstract: An aldehyde in a mixture containing hemiacetals and hydrates of the aldehyde is purified by treating the mixture with an effective amount of microwave radiation to decompose the hemiacetals and hydrates. Liberated water and/or alcohol is immediately removed with an adsorbent.

Abstract: Liquid 1,1-dichloro-1-fluoroethane containing contaminating unsaturated carbon compounds is treated with chlorine and ultraviolet light to convert the unsaturated contaminants to photochlorination products. The photochlorination products are thereafter separated from 1,1-dichloro-1-fluoroethane, such as by distillation. The process is particularly useful in separating vinylidene chloride from 1,1-dichloro-1-fluoroethane.

Abstract: Disclosed is a coated steel sheet valuable for the production of a fuel vessel, in which a first covering layer comprising a Pb-Sn alloy as the main component is formed on a substrate comprising a steel sheet and an undercoat covering layer composed of at least one member selected from Ni, Co and Cu, which is formed on the surface of the steel sheet according to need, a second covering layer containing a compound containing Pb and P is formed on the first covering layer, a third covering layer containing at least one member selected from Sn, Ni and Co is formed on the second covering layer, and according to need, the surface portion of the third covering layer is modified with a treating liquid containing a phosphoric acid ion or a chromic acid ion. This coated steel sheet shows a highly improved corrosion resistance, forming processability, solderability, and weldability.

Abstract: A method is provided for detecting the presence of organic materials in an aqueous sample. The materials are decomposed by simultaneous exposure to ultraviolet radiation and acoustic energy to decompose the materials to simple decomposition products. The simple decomposition products such as ammonium ion, halogen ion, alkyl ammonium ions, or sulfate ions, are then detected by conventional analytical devices and methods.