Using Gaseous Preservative, Preservative Added To Gaseous Phase Of Environment, Or Maintaining Gaseous Phase Nondestructive Patents (Class 422/9)
  • Patent number: 10749048
    Abstract: A transparent conductor including a conductive layer coated on a substrate is described. More specifically, the conductive layer comprises a network of nanowires that may be embedded in a matrix. The conductive layer is optically clear, patternable and is suitable as a transparent electrode in visual display devices such as touch screens, liquid crystal displays, plasma display panels and the like.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 18, 2020
    Assignee: Cambrios Film Solutions Corporation
    Inventors: Pierre-Marc Allemand, Haixia Dai, Shuo Na, Hash Pakbaz, Florian Pschenitzka, Xina Quan, Jelena Sepa, Michael A. Spaid
  • Patent number: 8920714
    Abstract: A corrosion prevention and control composition and method comprises combining primarily two-component polyurethane foam formed by reacting polyols with an isocyanate compound, and a 2 to 10 percent by weight of either an organic or inorganic gas-phase corrosion inhibitor. The closed cell foam provides a barrier protection for the underlying corrodible surface, while the inhibitor protects the metal from the absorbed moisture vapor, thereby preventing corrosion from occurring at the foam/metal interface. The resulting foam and inhibitor composition maintains better adhesion to the underlying corrodible structure in corrosive environments.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: December 30, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John V. Kelley, II
  • Patent number: 8795589
    Abstract: A volatile corrosion inhibitor may be in the form of, or derived from, molasses. Corrosion inhibition activity may be provided by molasses products, including molasses and/or any derivative product generated therefrom. Example molasses products include concentrated molasses, dehydrated molasses, molasses distillates or pot bottoms from distillation, extracted fractions of molasses, molasses fractions prepared by precipitation or membrane separation, and molasses residues remaining after removal of additional sugar or other targeted compounds. In one embodiment, the molasses-based corrosion inhibitor may be derived from sugar beet molasses.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: August 5, 2014
    Assignee: Cortec Corporation
    Inventors: Alla Furman, Margarita Kharshan, Ming Shen, Robert Kean
  • Publication number: 20140205496
    Abstract: A volatile corrosion inhibiting agent is provided for dispersion of a vapor phase corrosion inhibitor in a vapor stream that is passed into a sheath or other casing enclosing a metal bar, cable, or other tension member to protect said tension member from corrosion.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: Cortec Corporation
    Inventors: Margarita Kharshan, Alla Furman, Jessi Jackson Meyer
  • Patent number: 8747734
    Abstract: A process for passivation of surfaces of heat exchange apparatus exposed to a synthesis gas containing carbon monoxide, includes the steps of: (i) adding arsine to the synthesis gas to provide a total As concentration in the synthesis gas in range 0.001 to 10 ppmv, (ii) exposing the mixture of hot synthesis gas and arsine to the shell-side surfaces of said heat exchange apparatus to reduce the interaction between the carbon monoxide present in said gas and metals in said surfaces, (iii) recovering a cooled synthesis gas from the shell-side of said apparatus, and (iv) passing the cooled synthesis gas, optionally after further cooling, through a sorbent bed to remove arsenic compounds from the synthesis gas.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 10, 2014
    Assignee: Johnson Matthey PLC
    Inventors: Peter Edward James Abbott, Martin Fowles
  • Publication number: 20140135409
    Abstract: The invention relates to a process for the production of synthesis gas by the use of autothermal reforming in which tail gas from downstream Fischer-Tropsh synthesis is hydrogenated and then added to the autothermal reforming stage.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 15, 2014
    Applicant: Haldor Topsøe A/S
    Inventors: Kim Aasberg-Petersen, Peter Seier Cristensen, Thomas Sandahl Christensen
  • Publication number: 20140023553
    Abstract: A corrosion prevention and control composition and method comprises combining primarily two-component polyurethane foam formed by reacting polyols with an isocyanate compound, and a 2 to 10 percent by weight of either an organic or inorganic gas-phase corrosion inhibitor. The closed cell foam provides a barrier protection for the underlying corrodible surface, while the inhibitor protects the metal from the absorbed moisture vapor, thereby preventing corrosion from occurring at the foam/metal interface. The resulting foam and inhibitor composition maintains better adhesion to the underlying corrodible structure in corrosive environments.
    Type: Application
    Filed: November 5, 2012
    Publication date: January 23, 2014
    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I
    Inventor: U.S. Army Research Laboratory ATTN: RDRL-LO
  • Patent number: 8486431
    Abstract: A method of controlling floating virus infection. The method includes the step of: supplying chlorine dioxide gas into a space where floating virus can be present by a gas concentration which allows the animal to live or stay, but deactivates the virus.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: July 16, 2013
    Assignee: Taiko Pharmaceutical Co., Ltd.
    Inventor: Norio Ogata
  • Patent number: 8470601
    Abstract: An apparatus for indicating biological content within a container is provided. The apparatus includes a medical sterilization container having a cover removably attached to the medical sterilization container. An enclosable, sterilizable interior compartment is formed by the medical sterilization container and the cover, wherein the interior compartment is sized to house at least one medical instrument. A biological indicator is located at least partially in communication with the interior compartment, wherein the biological indicator provides at least one indication of biological content within the interior compartment after the medical sterilization container and cover are subjected to a sterilization process.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: June 25, 2013
    Assignee: Symmetry Medical Manufacturing, Inc.
    Inventors: Tony Foley, Gary T. Dane
  • Publication number: 20130101460
    Abstract: In a process for the exploration for or the production of crude oil and/or natural gas, wherein metal objects are exposed to a gas for period of time sufficient to produce an aqueous film, a method including introducing a corrosion inhibitor into a fluid in contact with the subject metal under conditions sufficient to introduce the corrosion inhibitor into the aqueous film can be used to prevent excessive corrosion. Useful as the corrosion inhibitor is 2-sulfanylpropan-1-ol, also known as 2-mercapto-ethanol, and 2-mercapto-ethanol substituted with one or two methyl groups, and combinations thereof.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: BAKER HUGHES INCORPORATED
  • Patent number: 8388904
    Abstract: A decontamination system includes a spraying system in an enclosed chamber for application of a decontamination fluid having a liquid carrier, such as water, and an enzyme-based decontaminating chemical additive. The additive contains an organophosphorus compound-degrading enzyme. The decontamination system also includes a fluid flow control system that ensures delivery of decontamination fluid to spray nozzles. The fluid flow control system features a recirculation system that collects runoff from the chamber and transports the collected runoff to a decontamination reactor. The decontamination reactor removes contaminants from the collected runoff liquid and permits the collected runoff liquid to be reused for further decontamination, thus taking advantage of the catalytic characteristic of the enzyme.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: March 5, 2013
    Assignee: Reactive Surfaces, Ltd., LLP
    Inventors: C. Steven McDaniel, Mauricio Salazar
  • Patent number: 8377531
    Abstract: The present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, tanks (e.g., storage tanks, septic tanks, fuel tanks, etc.); containers (e.g., shipping containers, storage containers, etc.); semi-closed systems (e.g., fuel systems, septic systems, reservoirs, etc.); and/or closed systems (e.g., waste disposal systems, waste disposal drums or containers, etc.). In another embodiment, the methods of the present invention may be utilized to reduce and/or prevent corrosion in a variety of pipelines (e.g., gas/oil pipelines, water pipelines, sewage lines, etc.). More specifically, the present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, metallic tanks; metallic containers; pipelines; semi-closed systems; and/or closed systems which are constructed partially or totally from metal. (e.g.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: February 19, 2013
    Assignee: Northern Technologies International Corporation
    Inventors: Efim Ya Lyublinski, Donald A Kubik
  • Patent number: 8309021
    Abstract: The present invention generally relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a top portion of an enclosure (e.g., storage tanks, cisterns, containers, etc.). In one embodiment, the present invention relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a top portion, or roof portion, of an enclosure where such a system includes one or more dispensers designed to deliver at least one corrosion inhibitor to a system designed to protect a top portion of an enclosure (e.g., storage tanks, cisterns, containers, etc.).
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: November 13, 2012
    Assignee: Northern Technologies International Corporation
    Inventors: Efim Ya Lyublinski, Yefim Vaks
  • Patent number: 8176654
    Abstract: By a method and a device for preventing corrosion on and in the region of a gas inlet nozzle during nitric acid condensation, contact of the condensing gas with the nozzle and with the surroundings of the nozzle are supposed to be minimized. This is achieved in that the gas inlet nozzle has a sleeve on the inside in the transition region to the interior of the condenser, by which sleeve a gas inlet orifice in the form of an annular gap is formed, whereby the annular space is provided with at least one feed opening for secondary air, so that an enveloping flow of secondary air is produced around the entering NO gas.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: May 15, 2012
    Assignee: ThyssenKrupp Uhde GmbH
    Inventor: Rainer Maurer
  • Patent number: 8101125
    Abstract: A method and system for reducing corrosion in a turbomachine. The method may include providing a process gas to a condenser, wherein the process gas contains a condensate having a pH level that is acidic. The condenser may be configured to remove at least a portion of the condensate from the process gas. Any condensate that is not removed is a remaining condensate. The method may further include increasing the pH level of the remaining condensate to above about 4 by mixing the process gas and the remaining condensate with an amount of pH modifier to form a mixture, and directing the mixture to a compressor coupled to the condenser, wherein the compressor is configured to compress the mixture.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: January 24, 2012
    Assignee: Dresser-Rand Company
    Inventors: Robert R. Odle, David C. Seib
  • Publication number: 20120009082
    Abstract: The present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, tanks (e.g., storage tanks, septic tanks, fuel tanks, etc.); containers (e.g., shipping containers, storage containers, etc.); semi-closed systems (e.g., fuel systems, septic systems, reservoirs, etc.); and/or closed systems (e.g., waste disposal systems, waste disposal drums or containers, etc.). In another embodiment, the methods of the present invention may be utilized to reduce and/or prevent corrosion in a variety of pipelines (e.g., gas/oil pipelines, water pipelines, sewage lines, etc.). More specifically, the present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, metallic tanks; metallic containers; pipelines; semi-closed systems; and/or closed systems which are constructed partially or totally from metal. (e.g.
    Type: Application
    Filed: September 8, 2011
    Publication date: January 12, 2012
    Applicant: Northern Technologies International Corporation
    Inventors: Efim Ya Lyublinski, Donald A. Kubik
  • Patent number: 8048965
    Abstract: Disclosed is a method for extending a shelf life of vinyl ester resin or unsaturated polyester resin during transportation or general storage. The method includes the step of enhancing an oxygen content of the vinyl ester resin or the unsaturated polyester resin, such that the self-polymerization reaction of reactive functional groups having carbon-carbon unsaturated double bonds of the vinyl ester resin or the unsaturated polyester resin can be minimized, so as to slow down occurrence of a gelation phenomenon of the vinyl ester resin or the unsaturated polyester resin in a long-time transportation or storage, and further to decrease a monetary loss.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: November 1, 2011
    Assignee: Swancor Inc. Co., Ltd.
    Inventors: Feng-Mao Huang, Shih-Wen Yur, Ming-Zhou Chuang
  • Patent number: 8017203
    Abstract: The present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, tanks (e.g., storage tanks, septic tanks, fuel tanks, etc.); containers (e.g., shipping containers, storage containers, etc.); semi-closed systems (e.g., fuel systems, septic systems, reservoirs, etc.); and/or closed systems (e.g., waste disposal systems, waste disposal drums or containers, etc.). In another embodiment, the methods of the present invention may be utilized to reduce and/or prevent corrosion in a variety of pipelines (e.g., gas/oil pipelines, water pipelines, sewage lines, etc.). More specifically, the present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, metallic tanks; metallic containers; pipelines; semi-closed systems; and/or closed systems which are constructed partially or totally from metal. (e.g.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: September 13, 2011
    Assignee: Northern Technologies International Corporation
    Inventors: Efim Ya Lyublinski, Donald A. Kubik
  • Publication number: 20100303670
    Abstract: A method and system for reducing corrosion in a turbomachine. The method may include providing a process gas to a condenser, wherein the process gas contains a condensate having a pH level that is acidic. The condenser may be configured to remove at least a portion of the condensate from the process gas. Any condensate that is not removed is a remaining condensate. The method may further include increasing the pH level of the remaining condensate to above about 4 by mixing the process gas and the remaining condensate with an amount of pH modifier to form a mixture, and directing the mixture to a compressor coupled to the condenser, wherein the compressor is configured to compress the mixture.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: DRESSER-RAND COMPANY
    Inventors: Robert R. Odle, David C. Seib
  • Publication number: 20080313962
    Abstract: A method for passivating low-alloy steel surfaces in apparatus operating in the temperature range 350 to 580° C. and exposed to a carbon monoxide containing gas mixture comprises adding a passivating compound containing at least one phosphorus (P) atom to the gas mixture. The gas mixture is preferably a reformed gas and also described is a process for producing a synthesis gas wherein, prior to cooling a reformed gas mixture to a temperature between 350 and 580° C. in apparatus having low-alloy steel surfaces downstream of one or more reforming steps, a passivating compound containing at least one phosphorus (P) atom is combined with the gas mixture.
    Type: Application
    Filed: October 10, 2006
    Publication date: December 25, 2008
    Applicant: JOHNSON MATTHEY PLC
    Inventors: Peter Edward James Abbott, Martin Fowles
  • Publication number: 20030194345
    Abstract: A method for cooling a heat source, a method for preventing chemical interaction between a vessel and a cooling composition therein, and a cooling system. The method for cooling employs a containment vessel with an oxidizable interior wall. The interior wall is oxidized to form an oxide barrier layer thereon, the cooling composition is monitored for excess oxidizing agent, and a reducing agent is provided to eliminate excess oxidation. The method for preventing chemical interaction between a vessel and a cooling composition involves introducing a sufficient quantity of a reactant which is reactive with the vessel in order to produce a barrier layer therein that is non-reactive with the cooling composition. The cooling system includes a containment vessel with oxidizing agent and reducing agent delivery conveyances and a monitor of oxidation and reduction states so that proper maintenance of a vessel wall oxidation layer occurs.
    Type: Application
    Filed: April 15, 2002
    Publication date: October 16, 2003
    Applicant: Bechtel BWXT Idaho, LLC
    Inventor: Eric P. Loewen
  • Publication number: 20030133827
    Abstract: This invention provides a method of treating a dry or processed fluid pipe line susceptible to the build-up of iron sulfide deposits by complexing the iron sulfide in the pipe lines. The method of the present invention introduces the composition on a continuous or a batch basis to a gas pipe line. The composition is made of a solution of 1) water, 2) [tetrakis (hydroxymethyl) phosphonium] sulfate or chloride, and 3) a soluble ammonium salt, such as ammonium chloride or the like.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 17, 2003
    Inventor: Mark Andrew Mattox
  • Patent number: 6551552
    Abstract: The present invention relates to a corrosion protection system and a method of protecting an article from corrosion by placing the article to be protected in a gas impermeable enclosure comprising at least one shell that is adapted to maintain an internal pressure greater than an external pressure outside of the corrosion protection system, placing at least one corrosion preventing device selected from a desiccant, a corrosion inhibitor, an inert gas, or a combination thereof, and sealing the gas impermeable enclosure of the corrosion protection system.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: April 22, 2003
    Assignee: COR/SCI LLC
    Inventors: Efim Ya Lyublinski, Donald A. Kubic
  • Publication number: 20030049160
    Abstract: A method for minimizing corrosion and the build-up of deposits on surfaces of a flue-gas system exposed to moist substances and elevated temperatures, and which includes a desulfurizer and heat transfer means communicating with the desulfurizer, said method involving adding to the system at the heat transfer means a readily water soluble alkaline substance such as sodium hydroxide in amounts sufficient to produce with said flue-gas in said heat transfer means a minimum pH of about 5, preferably 7 or higher.
    Type: Application
    Filed: August 31, 2001
    Publication date: March 13, 2003
    Inventors: Ira Kukin, William Carmen Pepe
  • Patent number: 6464899
    Abstract: Compositions and methods for inhibiting corrosion of metallic surfaces are disclosed. The corrosion-inhibiting compositions are cost efficient, easy to use and can be conveniently removed or replaced. The corrosion-inhibiting compositions include a putty-like base material that is pliable and has sufficient tackiness to be securely affixed to surfaces. Corrosion inhibiting compounds are combined with the base material. These compositions provide a vapor phase corrosion inhibitor for both direct and indirect contact with metallic objects.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: October 15, 2002
    Assignee: Henkel Loctite Corporation
    Inventors: Hans E. Haas, Matthew P. Burdzy
  • Patent number: 6454995
    Abstract: A method of reducing the formation of coke deposits on the heat-transfer surfaces of an ethylene dichloride to vinyl chloride pyrolysis furnace comprising exposing the heat transfer surfaces of said pyrolysis furnace to a phosphine selected from the group consisting of phosphines with the general formula: wherein R1, R2 and R3 are selected from the group consisting of hydrogen, chlorine, alkyl, aryl, alkylaryl and arylalkyl, wherein R1, R2 and R3 can be the same or different.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 24, 2002
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventor: Youdong Tong
  • Patent number: 6432355
    Abstract: Described herein is a process of corrosion inhibition of a steel pipeline during transport of water and gas, or water and an oil, or mixtures thereof, therethrough, including introducing a copolymer of vinyl caprolactam and vinylpyridine into said pipeline.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: August 13, 2002
    Assignee: ISP Investments Inc.
    Inventors: Kirill N. Bakeev, Jui-Chang Chuang, Thomas Winkler, Michael A. Drzewinski, David E. Graham
  • Publication number: 20010033938
    Abstract: A method is disclosed for prevention or stoppage of sulfidation or sulfuric corrosion of metal surfaces in contact with fluids including sulfiding compounds, where the method involves the addition of a compound to the fluid, where the additive has a higher affinity for metal surfaces than sulfur. The additive are group 15 of the periodic table of elements, fluorine-containing compounds, or mixtures or combinations thereof and are added in small quantities generally between about 0.001 ppm and about 20 ppm based on the amount of group 15 element or fluorine in the compound used. A protected metal surface is also disclosed which is coated with a protective coating comprising a group 15 element or fluorine and/or sulfur.
    Type: Application
    Filed: February 9, 2001
    Publication date: October 25, 2001
    Inventor: Alexander I. Kalina
  • Patent number: 6273962
    Abstract: A method for preventing corrosion and particulate in a load-lock chamber is disclosed. The load-lock chamber is adjourning with an etching chamber and a wafer transferred module, each time a wafer in the cassette is transferred into the etching chamber for etching by a transfer arm. After that, the etched wafer is withdrawn by the same way to the cassette. The load-lock chamber comprising an outlet of N2-purge tube therein for venting the vacuum in the load-lock chamber to the surrounding. The method comprising at least a step of coupling heating means to the N2-purge tube, or heating N2 gases before injecting into the N2-purge tube so that the temperature of the N2-purge tube will at least not lower than the temperature of an environment within the load-lock chamber.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: August 14, 2001
    Assignee: Mosel Vitelic Inc.
    Inventors: Kuang-Yung Wu, Jia-Rurng Hwu, Tien-Min Yuan, Shih-Chi Lai
  • Patent number: 6261346
    Abstract: A process useful for protecting metal surfaces against corrosion in is presented involving: (a) forming a corrosion inhibitor having a compound corresponding to formula (I): where R1, R2 and R3 independently of one another represent an alkyl or hydroxyalkyl group containing 1 to 4 carbon atoms, an aryl or alkylaryl group or a group corresponding to formula (II): A− is an anion, n is the number 2 or 3, p is a number of 1 to 3 and R5 is an alkyl or alkenyl group containing 7 to 23 carbon atoms and 0, 1, 2 or 3 double bonds, and R4 is a group corresponding to formula (II) or (III): where R1, R2 and R3 are as defined above and Z is a group —(CH2)m— or a group corresponding to formula (IV):  m is an integer of 1 to 6, X is a group NH or an oxygen atom and D is a dimer fatty acid residue containing on average 36 to 54 carbon atoms; (b) combining the corrosion inhibitor with liquid aqueous, liquid non-aqueous or gaseous me
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: July 17, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Wolfgang Breuer, Robert Schuetz, Guenther Uphues, Claus-Peter Herold, Rafael Pi
  • Patent number: 6156269
    Abstract: The invention relates to the field of power engineering.The method for protecting power plants, in which hydrogen is used as the working fluid, against destruction is carried out by reducing the diffusion of hydrogen into the structural metal material of the power plant, wherefore active gaseous additives capable of preventing adsorption on a metal surface are introduced into gaseous hydrogen in an amount of from 10.sup.-4 % by volume to the permissible critical content of the additives in hydrogen. The gaseous additives are selected from the group including F, Cl, O and S and their compounds.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: December 5, 2000
    Assignee: Konstrutorskoe Bjuro Khimavtomatiki
    Inventors: Vladimir Ivanovich Kholodny, Nikolai Sergeevich Goncharov, Nikolai Konstantinovich Meshkov, Vladimir Sergeevich Rachuk, Vladimir Ivanovich Tkachev, Alexandr Viktorovich Shostak
  • Patent number: 6100541
    Abstract: The present invention provides microfluidic devices and systems that utilize optical detection systems, and where one or more light altering optical elements are integrated into the body structure of the microfluidic device. The resulting devices perform at least a portion of the optical manipulations used in the optical detection method employed.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: August 8, 2000
    Assignee: Caliper Technologies Corporation
    Inventors: Robert Nagle, Colin B. Kennedy
  • Patent number: 6096348
    Abstract: A low odor, aqueous, quick acting cold temperature disinfectant solution primarily useful for medical instruments to disinfect within a half hour or less. The composition comprises a reacting or synergistic combination of hydrogen peroxide and from about 1% to 30% by weight of a carboxylic acid/carboxylate salt buffered solution.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: August 1, 2000
    Assignee: Healthpoint, Ltd.
    Inventors: Norman A. Miner, William H. Woller, Edward L. Anderson, David W. Hobson
  • Patent number: 5965264
    Abstract: A powder for sustained release of a gas including a core containing a molecular sieve, and a layer containing an acid releasing agent on an outer surface of the core. The core and the layer are substantially free of water, and the core is capable of generating and releasing a gas after hydrolysis of the acid releasing agent.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: October 12, 1999
    Assignee: Bernard Technologies, Inc.
    Inventors: Sumner A. Barenberg, Peter N. Gray, Michael Lelah
  • Patent number: 5958115
    Abstract: The invention relates to a corrosion-inhibiting material comprising a composite containing a metal oxide gel, where necessary modified by an organic polymer, and one or more corrosion inhibitors, and to a method for the production thereof. The corrosion-inhibiting composite material is used for producing corrosion-protective packaging material, for coating metallic and metallized articles as well as for corrosion protection in confined environments.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: September 28, 1999
    Assignees: EXCOR Korrosionsschutz-Technolgien und--Produkte GmbH, Feinchemie GmbH Sebnitz
    Inventors: Horst Bottcher, Karl-Heinz Kallies, Georg Reinhard, Gerhard Hahn
  • Patent number: 5935517
    Abstract: A carbon monoxide containing gas mixture at a temperature of 500.degree. C. is conducted through the inner protective tubing of a sheath tube lined with a thermally insulating protecting composition. The inner tubing is divided into sections and a potentially CO-free mass is introduced in the sheath tube in the regions of the thermally insulating mass to permeate the latter and form a barrier between the carbon monoxide gas and sheath tube, thereby eliminating hot spots and metal dusting corrosion.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: August 10, 1999
    Assignee: Metallgesellschaft AG
    Inventors: Werner Roll, Friedrich W. Hohmann
  • Patent number: 5904960
    Abstract: A method includes providing an article having an oxidizable organic compound and an organoleptic compound; advancing the article toward a means for treating the article, the means for treating the article including a treating medium, and a means for applying the treating medium to the article; and applying the treating medium to a surface of the article so as to lower the amount of the organoleptic compound in the article. An apparatus is also disclosed.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: May 18, 1999
    Assignee: Cryovac, Inc.
    Inventors: Michael L. Becraft, Martin J. Ecoff, R. Karina Sylvia, Jeffrey A. Thomas
  • Patent number: 5679287
    Abstract: A method for storing atmosphere sensitive product includes providing an atmosphere surrounding the product which contains at least about 5% heptafluoropropane, preferably at least about 20% heptafluoropropane. The stored products include food, pharmaceutical and chemical products, and mechanical and electrical equipment. In a particular aspect, the method includes storing the product in a closed container and providing in the headspace of the container an atmosphere containing heptafluoropropane.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 21, 1997
    Assignee: Great Lakes Chemical Corporation
    Inventors: Charles J. Mazac, John S. Rubacha
  • Patent number: 5486308
    Abstract: A composition for inhibiting corrosion. The composition contains a mixture of a dessicant and a vapor-corrosion inhibitor. The mixture of dessicant and inhibitor is synergistic: the service life of the corrosion inhibitor is signficiantly longer when so used than when used alone or in in the presence of but not physically mixed with the dessicant.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: January 23, 1996
    Assignee: A+ Corp.
    Inventor: Donald P. Mayeaux
  • Patent number: 5431957
    Abstract: A means and method for protecting the moving parts of a pump that is used to pump air- or moisture-sensitive liquids, comprising blanketing the wetted parts of the pump with an inert medium and/or admixing the process liquid with a low vapor pressure liquid component effective for inhibiting corrosion or particulate formation. In another aspect, the invention relates to an apparatus for protecting the wetted, moving parts of pumps used to pump air- or moisture-sensitive liquids. The apparatus provides a mantle within which an inert medium is flowed around the moving, wetted pump parts to continually purge them of any air or moisture.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: July 11, 1995
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Robin A. Gardiner, Peter S. Kirlin
  • Patent number: 5391322
    Abstract: A composition for inhibiting corrosion. The composition contains a mixture of a dessicant and a vapor-corrosion inhibitor. The mixture of dessicant and inhibitor is synergistic: the service life of the corrosion inhibitor is significantly longer when so used than when used alone or in in the presence of but not physically mixed with the dessicant.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: February 21, 1995
    Assignee: A+ Corp.
    Inventor: Donald P. Mayeaux
  • Patent number: 5378428
    Abstract: A method of preserving an article which includes enclosing the article and an oxygen absorbent parcel in a container having gas-barrier properties and sealing the container. The parcel is formed by packing an oxygen absorbent composition with a gas permeable packing material, the oxygen absorbent composition containing an linear hydrocarbon polymer having one or more unsaturated groups or a mixture of the polymer with an unsaturated fatty acid compound, an oxidation promoter, a basic substance and an adsorption substance.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: January 3, 1995
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yoshiaki Inoue, Shigeru Murabayashi, Kazuo Fujinami, Isamu Yoshino, Takamasa Kawakami, Satoru Makinose, Akira Naito
  • Patent number: 5326529
    Abstract: A method of inhibiting corrosion of metal reinforcement structures embedded within cured concrete. The method comprises providing a plurality of exteriorly-accessible generally uniformly distributed openings in the concrete. Thereafter, a plurality of containers is provided, with each container having therein a migrating corrosion inhibitor and having a wall structure which is permeable to the migrating corrosion inhibitor. One container is placed in each of a sufficient number of openings in the concrete such that a sufficient quantity of migrating corrosion inhibitor exits from the respective containers and migrates through the concrete to the embedded metal reinforcement structures to thereby inhibit corrosion.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: July 5, 1994
    Assignee: Cortec Corporation
    Inventors: Boris A. Miksic, Lawrence Gelner
  • Patent number: 5324448
    Abstract: A composition for inhibiting corrosion. The composition contains a mixture of a dessicant and a vapor-corrosion inhibitor. The mixture of dessicant and inhibitor is synergistic: the service life of the corrosion inhibitor is signficiantly longer when so used than when used alone or in in the presence of but not physically mixed with the dessicant.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: June 28, 1994
    Assignee: A + Corp.
    Inventor: Donald P. Mayeaux
  • Patent number: 5316633
    Abstract: A method and system for electrochemically measuring the sensitization to stress corrosion cracking of small pipes of plant structural members in a very short period of time. A micro electrochemical cell for measuring the sensitization is movably disposed within a BWR plant ICM housing or an instrumentation pipe. An electrochemical instrumentation system for performing the electrochemical potential variation such as pulse voltammetry and a remote control system for remotely controlling the electrochemical cell are provided.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: May 31, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Masanori Sakai, Noriyuki Ohnaka, Masakiyo Izumiya, Shigeo Hattori
  • Patent number: 5223160
    Abstract: The deposition of elemental sulfur in a conduit through which a sulfur containing gas is flowing is reduced by providing, as a novel sulfur dispersant, an ether alcohol component produced from primary alcohol and epichlorohydrin mixed with an aliphatic amine component, the dispersant being employed in the presence of liquid water. When the conduit is normally vulnerable to the corrosion caused by contact with the sulfur-containing gas, the sulfur dispersant is optionally employed in conjunction with a corrosion inhibitor.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: June 29, 1993
    Assignee: Nalco Chemical Company
    Inventor: Daniel H. Emmons
  • Patent number: 5171451
    Abstract: We have determined that simultaneous use in industrial waters of certain water soluble polymers in the presence of ozone is acceptable for scale control, corrosion control, microbiological control and the like. The preferred polymers used with ozone and those polymers that are homopolymers and copolymers containing at least 50 mole percent of acrylic acid or methacrylic acid, mixtures thereof. Certain other monomers may be used with the acrylic acid and methacrylic acid monomers, and still function as scale inhibitors and corrosion inhibitors in the presence of ozone in industrial waters. The industrial waters are particularly recirculating cooling waters.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: December 15, 1992
    Assignee: Nalco Chemical Company
    Inventors: Binaifer S. Khambatta, Paul R. Young, Kenneth E. Fulks
  • Patent number: 5151220
    Abstract: A method of inhibiting carbonate stress corrosion cracking is determined to involve the addition of certain treatment chemicals to refinery process streams containing at least 1 of the volatile chemicals, ammonia, carbon dioxide, hydrogen sulfide, hydrogen cyanide, and water. The treatment chemical is preferably a fatty imidazoline compound or fatty amides or fatty esters or mixtures thereof.The imidazoline compounds and the amide/esters are formed by reacting tall oil fatty acids, naphthenic acids, or mixtures thereof with essentially linear heterochemicals containing amine or alcohol functionality.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: September 29, 1992
    Assignee: Nalco Chemical Company
    Inventors: Veronica K. Majestic, Russell C. Strong
  • Patent number: 5084210
    Abstract: A corrosion inhibitor including an acetylinic alcohol is disclosed which is used in connection with a chlorine dioxide process for controlling biomass and cleaning water injection wells and oil producing wells by injecting the chlorine dioxide oxidant into the pumped water injection stream.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: January 28, 1992
    Assignee: Chemlink Incorporated
    Inventor: Susan M. Teeters
  • Patent number: 5032318
    Abstract: A process is disclosed for inhibiting corrosion in tin-plated steel aerosol cans which contain aqueous aerosol formulations and a propellant. Compositions such as the isopropylamine, cyclohexylamine, 2-ethylhexylamine and tertiary C.sub.12-14 alkyl primary amine salts of N-acyl sarcosine; morpholine salts of oleic acid, acetic acid, benzoic acid, and N-acyl sarcosine; cyclohexylamine, 2-ethylhexylamine, tertiary C.sub.12-14 alkyl primary amine and tertiary C.sub.18-22 alkyl primary amine salts of benzoic acid are disclosed.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: July 16, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Philip L. Bartlett