Abstract: This invention relates generally to a method for producing nitrous oxide, and more specifically, to a method for producing nitrous oxide by reacting ammonia with at least one molten nitrate salt.
Abstract: A filter press membrane electrolytic cell having at least one cathode and one anode sandwiched about a permselective ion exchange membrane which employs a cathode having a first layer and a second layer cooperative with the membrane such that the voltage coefficient during operation at current densities greater than 4.0 kiloamperes per square meter is less than about 0.20 volts per kiloampere per square meter.
Type:
Grant
Filed:
May 5, 1986
Date of Patent:
August 18, 1987
Assignee:
Olin Corporation
Inventors:
David D. Justice, Kenneth E. Woodard, Jr.
Abstract: A process for electroplating a conductive metal layer to the surface of a non-conductive material which comprises:(a) preparing a liquid dispersion of carbon black comprised of:(1) carbon black particles having an average particle diameter of less than about 3.0 microns in said dispersion;(2) an effective dispersing amount of a surfactant which is compatible with said carbon black; and(3) liquid dispersing medium,wherein the amount of carbon black is sufficient to coat substantially all of said non-conducting surfaces and is less than about 4% by weight of said liquid dispersion;(b) applying said liquid dispersion to the surface of the non-conducting material;(c) separating substantially all of said liquid dispersing medium from said carbon black particles, whereby said particles are deposited on said non-conductive surface in a substantially continuous layer; and(d) electroplating a substantially continuous conductive metal layer over the deposited carbon black layer and said non-conductive surface.
Abstract: A water treatment or processor device for household use or commercial use (for example, in a restaurant) is provided with fail-safe features in accordance with this invention to shut the treatment device "off" when an element thereof has become ineffective, such as the saturation of an adsorption element or the clogging of a filter element. Once the device is turned "off", it cannot be restarted until the depleted element has been replaced.
Abstract: In a downhill snow ski there is provided at least one torsional reinforcing layer intermediate to the top and the bottom running surface and generally parallel thereto formed from fibers of high elastic modulus which are randomly oriented in a matrix material to increase the torsional stiffness of the ski.
Abstract: The present invention provides non-ionic carbohydrate based ethers having surfactant and other valuable properties of the formula: ##STR1## wherein: R is substituted or unsubstituted alkyl, aryl or aralkyl group containing 1-20 carbon atoms, and R.sub.1 is an aryl, aralkyl, alkyl or alkenyl group containing 1-20 carbon atoms.
Abstract: An electrostatic latent image in a desired pattern is formed on an electrostatically imageable surface and toned with a liquid toner to form a toner image on the surface. The toner image is then transferred while still wet to a transfer sheet and then to the surface of a conductor, or the toner image may be transferred directly to the surface of a conductor without a transfer sheet, such direct transfer being preferred. The toner image is then fused to the conductor surface to provide an etch resist pattern of high resolution on the conductor surface. The conductor may then be etched to form a high density printed circuit. In the direct transfer method a nonpolar insulating solvent-carrier is applied to the surface of the conductor and the electrostatically imageable surface.
Type:
Grant
Filed:
April 4, 1986
Date of Patent:
April 28, 1987
Assignee:
Olin Hunt Specialty Products, Inc.
Inventors:
David P. Bujese, Peter J. Calabrese, Gary W. Schmidt, Abelardo M. Santos
Abstract: A process for producing cyanuric acid which comprises feeding a urea hydrohalide compound to a pyrolysis zone.The urea hydrohalide compound is pyrolyzed to produce a solid reaction mixture of cyanuric acid and an ammonium halide. The solid reaction mixture is vaporized to remove the ammonium halide to form a gaseous mixture containing ammonia and hydrogen halide which is simultaneously removed from the pyrolysis zone. The cyanuric acid recovered is substantially free of ammonium halide.The novel process produces high purity cyanuric acid in the absence of liquid effluents while readily recovering the ammonia and hydrogen halide values.
Abstract: A flexible non-reticulated foam pad having on a surface thereof a polyurethane coating consisting essentially of a cured isocyanate-terminated prepolymer, the penetration of the prepolymer coating being no more than about 50 percent of the thickness of the flexible urethane foam. The coated surface provides an abrasive area which enhances its use in cleaning applications as well as increasing the resistance to tear propagation of the wet foam. In addition, the major portion of the foam pad is available for the release of cleaning and sanitizing agents or the absorption of liquids such as water. The novel foam pads are suitable for household, institutional and industrial use.
Abstract: Disclosed is a positive-working resist composition which demonstrates improved photospeed and rate of development. The resist composition contains a solvent and select proportions of a novolak resin, a naphthoquinone diazide sensitizer, a dye which absorbs light at a maximum wavelength of from about 330 to about 460 nm and an effective proportion of a trihydroxybenzophenone compound. Also disclosed is a method of forming a resist pattern on a substrate by employing the positive-working resist composition.
Abstract: A pool chemical dispenser is provided that comprises a rotatably adjustable top, a container and a ballast disk cooperative with the top such that the specific gravity of the material of the top and the container is less than 1.0 and the specific gravity of the material of the ballast disk is greater than 1.0 thereby permitting the dispenser to float off the bottom of the skimmer in which it is immersed in water when less than about 10% of the pool chemical remains in the container and invert, remaining on the top of the surface of the water to indicate the pool chemical is exhausted.
Type:
Grant
Filed:
December 11, 1984
Date of Patent:
February 17, 1987
Assignee:
Olin Corporation
Inventors:
Roy P. Alexander, J. Philip Faust, Alan H. Milford
Abstract: A boiler blowdown monitoring system wherein the conductivity of the water in the boiler blowdown line is monitored to determine if it exceeds either a preset maximum or minimum level. The system includes a blowdown sensor, a blowdown valve, a blowdown controller and an interrogation means. The water conductivity is sensed by the sensor located on the blowdown line and transmitted to the interrogation means (e.g. microprocessor) through the boiler blowdown controller. If the sensor senses a water conductivity level above a preselected maximum conductivity level or below a preselected minimum conductivity level after a predetermined time period has passed since the boiler blowdown valve was opened, then an alarm signal is sent to the boiler operator.
Abstract: An alpine ski with flexible impact absorbing edges and elastomeric sidewalls is provided to enable the bottom edges to follow the contour of the ground by moving therealong and absorbing the unevenness of the ground.
Abstract: Disclosed is a bioactive polymer comprising an effective biocidal amount of moieties derived from pyrithione and having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are individually selected from hydrogen and alkyl groups having from 1 to 4 carbon atoms; and PT represents the pyrithione moiety which is defined as ##STR2## wherein R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are individually selected from hydrogen and, a lower alkyl group having from 1 to about 8 carbon atoms, a lower alkoxy group having from 1 to about 8 carbon atoms, a nitro group and a halo group.
Type:
Grant
Filed:
February 26, 1986
Date of Patent:
December 30, 1986
Assignee:
Olin Corporation
Inventors:
Samuel I. Trotz, Theodore H. Fedynyshyn
Abstract: A process for electroless plating a conductive metal layer to the surface of a non-conductive material which comprises:(a) preparing a liquid dispersion of carbon black comprised of:(1) carbon black particles having an average particle diameter of less than about 3.
Type:
Grant
Filed:
May 5, 1986
Date of Patent:
December 23, 1986
Assignee:
Olin Hunt Specialty Products Inc.
Inventors:
Karl L. Minten, Angelo J. Battisti, Galina Pismennaya
Abstract: A chemical process monitoring system wherein both a chemical process parameter control means (e.g. standard water treatment controller) and the means for adjusting the controlled process parameter (e.g. chemical feed pump) are simultaneously monitored through an interrogation means (e.g. microprocessor to determine if the adjusting means is successfully responding to the control means; and, if not, an alarm signal is generated to the operator.
Abstract: The use of glycoside polyols together with diol or triol-initiated polyols in the production of polyurethane elastomers provides elastomers which are thermally stable at temperatures of 140.degree. F. or higher. These polyurethane elastomers are useful as thermoconductivity barriers in window holders exposed to high-temperature conditions, as engine mounts on automobiles, as encapsulators for electronic distributors, and the like.