Maintaining Environment Nondestructive To Metal Patents (Class 422/7)
  • Patent number: 8651010
    Abstract: The invention relates to the trigger and firing mechanisms for pistols. The inventive pistol comprises a frame (1), a barrel (2) with a cartridge chamber (3), a cartridge feeding mechanism (4), a fired case removing mechanism and a breech block return spring (12). The breech block (13) is slidable parallel to the barrel axis and comprises a firing mechanism, which consists of a firing spring stop (14), a firing spring (15), a striker (16) having a firing pin tip (17), a cocking notch (18) and rest pads for a firing spring (19) and for a striker spring (20). The breech block (13) includes a mechanism for sinking the firing pin tip (17) in a position, which makes possible the chambering of a cartridge, said mechanism having a striker spring (21), the force of which in a precompressed condition is greater than the precompressed force of the firing spring (15). The striker spring stop (22) is installed in the breech block (13) for fixing the precompressed force of the striker spring (21).
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: February 18, 2014
    Inventor: Volodymyr Igorovych Smirnov
  • Publication number: 20140042362
    Abstract: Methods and systems are provided for the in situ generation of polysulfide ions in a process stream including S2? and/or HS? ions. Methods and systems are also provided to ameliorate corrosion in a process stream containing an acid gas or a scrubbing agent solvent, and abate mercury and cyanide in process streams containing a scrubbing agent solvent.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Gordon Bryce McGARVEY, Robert J. FALKINER, David R. SLIM, Bryan M. KNICKERBOCKER
  • Publication number: 20140030142
    Abstract: A method for gas phase application of chlorine dioxide within an enclosed volume that includes the steps of: climatizing the enclosed volume to achieve a relative humidity (RH) in the range of about 5% to about 56%; generating chlorine dioxide gas; and introducing the chlorine dioxide gas under specified conditions of chlorine dioxide gas concentration and contact time, the specified conditions being effective to eliminate contaminants within the closed volume, and further to mitigate corrosion within the enclosed volume during the gas phase application.
    Type: Application
    Filed: May 8, 2012
    Publication date: January 30, 2014
    Applicant: Sabre Intellectual Property Holdings LLC
    Inventors: John Y. Mason, Peter Williams, Maggie Trabeau
  • Publication number: 20140017119
    Abstract: The present invention relates generally to the field of emissions control and, in particular to a new and useful method and/or system by which to control various types of corrosion and/or precipitation issues in at least a portion of a wet flue gas desulfurization (WFGD) scrubber system. In one embodiment, the method and/or system of the present invention relies on the supply of at least one reducing agent to the slurry of a wet flue gas desulfurization scrubber to lower the oxidation reduction potential in the absorber slurry contained within the wet flue gas desulfurization scrubber. In still another embodiment, the method and/or system of the present invention control the oxidation-reduction potential in at least one bleed stream of an absorber slurry, filtrate, and/or solution from a wet flue gas desulfurization scrubber.
    Type: Application
    Filed: March 15, 2013
    Publication date: January 16, 2014
    Inventors: Richard F. DeVault, Paul J. Williams, Sandy P. Ulbricht, Shannon R. Brown
  • Publication number: 20140017120
    Abstract: The method of using an amine compound represented by the formula NH2—(CH2)m—O—(CH2)n—OH, where each of m and n is an integer of 1 to 3, as a boiler anti-corrosive.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 16, 2014
    Applicant: KURITA WATER INDUSTRIES LTD.
    Inventors: Shintarou MORI, Yukimasa SHIMURA
  • Publication number: 20140011722
    Abstract: The present invention relates to the use of charged cellulose nanocrystals as a corrosion inhibitor. According to one aspect, there is provided a corrosion inhibitor comprising of a plurality of charged cellulose nanocrystals fibrils. There is further provided a process for inhibiting corrosion of metal equipment where water can reside. According to a further aspect, the process includes adding an effective corrosion inhibiting amount of acid-form the cellulose nanocrystals. According to another aspect, the process includes selectively causing a first set of the cellulose nanocrystals to be negatively charged. The first set of the cellulose nanocrystals so charged function as an anodic corrosion inhibitor. The process includes selectively causing a second set of the cellulose nanocrystals to be positively charged. The second set of the cellulose nanocrystals so charged functions as a cathodic corrosion inhibitor.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventor: Andrew Garner
  • Patent number: 8623273
    Abstract: Disclosed herein are methods of preventing or reducing scale formation or corrosion by combining at least one scale-forming fluid comprising at least one scaling compound with at least one anti-scale material chosen from at least one scale-adsorbent agent. The methods may reduce or prevent the formation of scale on surfaces of liquid-related process equipment, such as boilers and heat exchangers.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: January 7, 2014
    Assignee: Imerys Filtration Minerals, Inc.
    Inventor: Jie Lu
  • Patent number: 8617493
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 31, 2013
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8609048
    Abstract: A process for process for reducing one or more of corrosion, fouling, solvent degradation, or zeolite degradation in a process unit is described. The process includes introducing the hydrocarbon feedstream containing oxygen to an adsorbent bed containing copper and reacting the oxygen with the copper to form copper oxide and a reduced oxygen feedstream, and introducing the reduced oxygen feedstream into the process unit. A process for reducing one or more of corrosion, fouling, solvent degradation, or zeolite degradation in an aromatics extraction unit is also described.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 17, 2013
  • Patent number: 8603392
    Abstract: Corrosion-inhibited hypochlorite compositions and methods of use are disclosed. Corrosion inhibitors including sugar acids and calcium compounds, polyacrylate and calcium compounds, and/or zinc and calcium compounds are used with hypochlorite sources to enhance the longevity and performance of electrochemical cells as well as reducing corrosion of metal in contact with the generated hypochlorite sources. The methods for generation employ a variety of electrochemical cells, beneficially including use of portable electrochemical cell system for production of corrosion-inhibited hypochlorite cleaning solutions.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: December 10, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Jenna Johnson, Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Patent number: 8585994
    Abstract: A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: November 19, 2013
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Jitendra T. Shah, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa, Rebecca L. Stiles, Richard Mimna, Wayne M. Carlson
  • Patent number: 8585977
    Abstract: A method and system for reducing corrosion in a turbomachine are provided. 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: December 21, 2011
    Date of Patent: November 19, 2013
    Assignee: Dresser-Rand Company
    Inventors: Robert R. Odle, David C. Seib
  • Publication number: 20130302210
    Abstract: A method for inhibiting corrosion on metallic surfaces in contact with a liquid hydrocarbon media is provided. A corrosion inhibitor composition is dispersed into a liquid hydrocarbon media to form a protective film on the metallic surfaces. The corrosion inhibitor includes a polyamic acid having structure I: A-HN—(CH2)2—[—NH(CH2)2—]x—NH-A??I or structure II: A-HN—(CH2)3—[—O—(CH2)2—]n—O—(CH2)3—NH-A??II wherein A has structure III: R—CH?CH—CH(CO2H)—CH2C(O)—??III and R is a (C8-C22) alkyl group or a (C8-C22) alkenyl group, x is an integer from 0 to 6 and n is an integer from 1 to 6. A method for preparing the corrosion inhibitor is also provided.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 14, 2013
    Inventors: Nimeshkumar Kantilal Patel, Baraka Kawawa, Glenn Vernon Kenreck, JR., Subbiah Alagarsamy, Gregory Kaplan, Reblka Mayanglambam Devil, Muthukumar Nagu
  • Patent number: 8580154
    Abstract: Disclosed are quaternary ammonium salts containing non-halogen anions such as carbonates, bicarbonates, phosphates, glycolates and mixtures thereof as conversion coatings or additives imparting anti-corrosive properties to paints. The invention relates to a method for inhibiting the corrosion of metal surfaces by applying a composition containing one or more quaternary ammonium carbonate or bicarbonate. The disclosure is also directed to anti-corrosive coatings for metal substrates containing these compounds and to metal substrates having these anticorrosive coatings.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: November 12, 2013
    Assignee: Lonza, Inc.
    Inventors: Thomas C. Bedard, Thomas David Burleigh, Larry K. Hall, Joseph Kimler, Joseph W. Scheblein, Michael Y. Chiang
  • Publication number: 20130280124
    Abstract: An embodiment prevents equipment fouling (deposition of unwanted material) in an oil recovery system via implementing passivation of metallic components. By preventing or at least slowing or inhibiting corrosion of equipment or components via passivation, such as passivating heat exchangers, metallic piping, and the like, an embodiment in turn reduces fouling thereof. Other embodiments are described and claimed.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 24, 2013
    Inventors: Robert Wright Bedinger, III, Benjamin Edward Niemaseck, Mark Jason Puchovich, John Richardson
  • Publication number: 20130273274
    Abstract: The present invention relates to a method of using N-acylamino acids or salts thereof to protect metal from corrosion, and to containers that at least in portions enclose a cavity, where the container comprises at least one metallic part and where a composition that encompasses at least one N-acylamino acid and water is arranged in the cavity.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 17, 2013
    Inventors: Burkhard Mueller, Pamela Kaftan
  • Patent number: 8557178
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Corrosion inhibitors are selected from polyacrylate and calcium corrosion inhibitors, zinc and calcium corrosion inhibitors and/or sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: October 15, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Erik C. Olson, Kim R. Smith, Steven E. Lentsch, Sherri L. Tischler
  • Publication number: 20130251589
    Abstract: A composition for the creation of a protective barrier on a wide variety of materials to prevent the deterioration and degradation caused by exposure to moisture and sun over time.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 26, 2013
    Inventor: David Walden
  • Patent number: 8535447
    Abstract: A method, system and device to use a dilute alkaline solution held at sub-critical temperature and pressure conditions to remove rapidly chloride ions from corroded iron artifacts.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: September 17, 2013
    Assignee: Clemson University Research Foundation
    Inventor: Michael J. Drew
  • Publication number: 20130230425
    Abstract: Described are methods for treating a multi-metal assembly. The assembly has a first portion that includes an aluminum substrate and a second portion that includes a non-aluminum metal substrate. The methods include treating the multi-metal assembly by contacting the assembly with a zinc-phosphate composition and contacting the treated assembly with a composition that includes a Group IIIB and/or IVB metal and free fluoride.
    Type: Application
    Filed: August 30, 2012
    Publication date: September 5, 2013
    Applicant: PPG Industries Ohio, Inc.
    Inventors: James A. DeChant, Richard Premo, Mark Simpson
  • Publication number: 20130224092
    Abstract: Aldehydes useful as H2S sulfide scavengers may be corrosive to some metals such as steel, iron and aluminum, but the corrosive effect of the aldehydes may be mitigated by employing a corrosion inhibitor selected from the group consisting of a di-basic soluble phosphate salt, a tri-basic soluble phosphate salt, a phosphate ester, a thiophosphate ester, a thioamine, a Mannich Reaction Product, and combinations thereof.
    Type: Application
    Filed: August 20, 2012
    Publication date: August 29, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Stephen R. Keenan, Jonathan Collins, Sunder Ramachandran, Vladimir Jovancicevic, Rose Tompkins, Grahame N. Taylor, Richard L. Martin, Michael L. Walker
  • Patent number: 8496853
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Zinc and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: July 30, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Erik C. Olson, Kim R. Smith, Steven E. Lentsch
  • Publication number: 20130182814
    Abstract: In a plant including a system which is provided with a steam generator 2, a turbine 3, 5, a condenser 6 and a heater 7 and in which non-deaerated water circulates, and a pipe, the steam generator 2, the heater 7 and 8 of the system which comes into contact with the non-deaerated water is deposited with a protective substance.
    Type: Application
    Filed: July 26, 2011
    Publication date: July 18, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Okamura, Osamu Shibasaki, Seiji Yamamoto, Hajime Hirasawa
  • 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: 20130156638
    Abstract: The present invention relates to the use of a polyesteramine or a polyester polyquaternary ammonium compound as a corrosion inhibitor for metal surfaces, and to a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 20, 2013
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V
    Inventors: Per-Erik Hellberg, Natalija Gorochovceva
  • Publication number: 20130149191
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: Chevron Oronite Company LLC
    Inventor: Juan A. Buitrago
  • Patent number: 8439677
    Abstract: The present invention provides a maintenance apparatus for increasing the service life of a medical handpiece. The maintenance apparatus is provided with a first fluid supply which feeds a maintenance fluid to the bearings of a handpiece, capable of rotatably supporting a rotary tool, and a second fluid supply which feeds the maintenance fluid to the chucking structure of the handpiece, capable of detachably holding the rotary tool.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: May 14, 2013
    Assignee: J. Morita Manufacturing Corporation
    Inventors: Makoto Numakawa, Shigehiko Inoue, Makoto Kawakami, Hirofumi Jikuhara
  • Publication number: 20130089460
    Abstract: Aldehydes useful as H2S sulfide scavengers may be corrosive to some metals such as steel, iron and aluminum, but the corrosive effect of the aldehydes may be mitigated by employing a corrosion inhibitor selected from the group consisting of a di-basic soluble phosphate salt, a tri-basic soluble phosphate salt, and combinations thereof.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Stephen R. Keenan, Jonathan Collins, Sunder Ramachandran, Vladimir Jovancicevic
  • Publication number: 20130090271
    Abstract: Aldehydes useful as H2S sulfide scavengers may be corrosive to some metals such as steel, iron and aluminum, but the corrosive effect of the aldehydes may be mitigated by employing a corrosion inhibitor selected from the group consisting of a di-basic soluble phosphate salt, a tri-basic soluble phosphate salt, a phosphate ester, a thiophosphate ester, a thioamine, and combinations thereof.
    Type: Application
    Filed: July 2, 2012
    Publication date: April 11, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Stephen R. Keenan, Jonathan Collins, Sunder Ramachandran, Vladimir Jovancicevic, Rose Tompkins, Grahame Taylor
  • Patent number: 8404181
    Abstract: The present invention relates to a method of preventing or alleviating the problems associated with corrosion and to novel formulations for use in such a method.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: March 26, 2013
    Assignee: Rhodia UK Limited
    Inventors: Chris Jones, Julie Hardy
  • Patent number: 8383559
    Abstract: The present invention includes compositions and methods of supplying a corrosion inhibitor including placing a corrosion inhibitor attached to a nanostructure carrier, placing the nanostructure carrier containing the corrosion inhibitor at a location and the nanostructure carrier is capable of releasing the corrosion inhibitor.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: February 26, 2013
    Assignee: National Oilwell Varco, L.P.
    Inventors: Deepthi R. Setlur, Stefan M. Butuc
  • Patent number: 8372336
    Abstract: The present invention relates to the use of a product obtainable by the reaction of an alkoxylated fatty amine with a dicarboxyhc acid derivative, followed by partial or total quaternization of the reaction product obtained; or by reacting a product with a dicarboxylic acid derivative, followed by partial or total quaternization of the reaction product obtained. The product consists of >60% w/w of oligomers/polymers with at least two alkoxylated amine units and one or more diacid/acid anhydride unit or >50% w/w of oligomers/polymers with at least two alkoxylated amine units and two or more diacid/acid anhydride units; as a corrosion inhibitor for metal surfaces. The invention also relates to a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: February 12, 2013
    Assignee: Akzo Nobel Chemicals International B.V.
    Inventors: Per-Erik Hellberg, Natalija Gorochovceva
  • Patent number: 8343380
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: January 1, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Patent number: 8337640
    Abstract: Disclosed are quaternary ammonium salts containing non-halogen anions such as carbonates, bicarbonates, phosphates, glycolates and mixtures thereof as conversion coatings or additives imparting anti-corrosive properties to paints. The invention relates to a method for inhibiting the corrosion of metal surfaces by applying a composition containing one or more quaternary ammonium carbonate or bicarbonate. The disclosure is also directed to anti-corrosive coatings for metal substrates containing these compounds and to metal substrates having these anticorrosive coatings.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 25, 2012
    Assignee: Lonza, Inc.
    Inventors: Thomas C. Bedard, Thomas David Burleigh, Larry K. Hall, Joseph Kimler, Joseph W. Scheblein, Michael Y. Chiang
  • Publication number: 20120315185
    Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Application
    Filed: August 3, 2012
    Publication date: December 13, 2012
    Applicant: WINCOM, INC.
    Inventors: William N. Matulewicz, Peter F. Vogt, James E. Milawski
  • Publication number: 20120308432
    Abstract: A composition with a corrosion inhibitor component having one or more tetrahydrobenzotriazoles and one or more other triazoles; wherein the tetrahydrobenzotriazoles are in a weight ratio to the other triazoles such that the composition decreases the General Corrosion rate, as measured by copper electrodes in the presence of 10 ppm sodium hypochlorite, by at least about 0.05 mpy relative to a corrosion inhibitor component which is 100% of the other triazoles. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Application
    Filed: August 3, 2012
    Publication date: December 6, 2012
    Applicant: WINCOM, INC.
    Inventors: William N. Matulewicz, Peter F. Vogt, James E. Milawski
  • Patent number: 8318085
    Abstract: Methods of inhibiting the corrosion of a metal surface contacted by an aqueous acid solution. The methods combine a corrosion inhibiting composition with the aqueous acid solution, wherein the corrosion inhibiting composition comprises a reaction product of an alpha,beta-unsaturated ketone with a primary or secondary amine. The metal surface is then contacted with the aqueous acid solution comprising the corrosion inhibiting composition, thereby inhibiting corrosion thereon.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 27, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Keith A. Frost
  • Patent number: 8313693
    Abstract: A shaving razor maintenance system includes a razor container defining a reservoir bottom region and razor head supporting structure disposed to restrict razor head and blade portions from entering the reservoir bottom region, and a two-phase liquid including a first liquid including a first anti-microbial agent, and a non-corrosive second liquid. The first liquid is water-miscible and has a specific gravity relatively greater than the specific gravity of the second liquid. The first and second liquids are also immiscible, but, upon agitation, form a temporary, generally homogeneous emulsion. A method for maintaining a razor head and blade portion is also described.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: November 20, 2012
    Inventor: Charles D. Winsell
  • Publication number: 20120288404
    Abstract: Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having the structure: wherein R1, R2, R3, and R4 are each independently selected from the group consisting of H, OH, COOH, C1-C10 alkyl groups, glycol esters, anhydride groups, —COOM, and combinations thereof, wherein M is at least one of H, alkali metal ions, alkali earth metal ions, NH4+, amines, imidazoline, polyalcohol esters, C1 to C12 alkyl groups, and combinations thereof; wherein (1) at least three of R1, R2, R3, and R4 contain the group —COOM, wherein M is defined above; or (2) at least two of R1, R2, R3, and R4 contain an anhydride group, and at least one of R1, R2, R3, and R4 contain the group —COOM, wherein M is defined above.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 15, 2012
    Applicant: Prestone Products Corp.
    Inventors: Bo Yang, Peter M. Woyciesjes, Aleksei V. Gershun, Filipe J. Marinho
  • Publication number: 20120273374
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Corrosion inhibitors are selected from polyacrylate and calcium corrosion inhibitors, zinc and calcium corrosion inhibitors and/or sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Application
    Filed: July 13, 2012
    Publication date: November 1, 2012
    Applicant: ECOLAB USA INC.
    Inventors: Erik C. Olson, Kim R. Smith, Steven E. Lentsch, Sherri L. Tischler
  • Patent number: 8250931
    Abstract: The present invention relates to a method for inhibiting in a non-aqueous, non-conductive liquid. The present method also relates to a corrosion inhibitor that can be employed in such a liquid. The method can include measuring or detecting the present corrosion inhibitor with a magnetic flow meter.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: August 28, 2012
    Assignee: Global Process Technologies, Inc.
    Inventors: Paul R. Young, Donovan Erickson
  • Patent number: 8246942
    Abstract: The invention relates to synergistic mixtures of o-phenylphenol with other microbicidally active compounds, such as bronopol (2-bromo-2-nitro-1,3-propanedial), 2-methyl-2H-isothiazol-3-one, 1,2-dibromo-2,4-dicyanobutane.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 21, 2012
    Assignee: LANXESS Deutschland GmbH
    Inventors: Peter Wachtler, Martin Kugler
  • Patent number: 8192684
    Abstract: A method for gas phase application of chlorine dioxide within an enclosed volume that includes the steps of: climatizing the enclosed volume to achieve a relative humidity (RH) in the range of about 5% to about 56%; generating chlorine dioxide gas; and introducing the chlorine dioxide gas under specified conditions of chlorine dioxide gas concentration and contact time, the specified conditions being effective to eliminate contaminants within the closed volume, and further to mitigate corrosion within the enclosed volume during the gas phase application.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: June 5, 2012
    Assignee: Sabre Intellectual Property Holdings LLC
    Inventors: John Y. Mason, Peter Williams, Maggie Trabeau
  • Publication number: 20120128530
    Abstract: The present invention relates to a corrosion inhibitor for use in the oil and gas exploration, recovery and processing industries. In particular, the invention relates to a quaternary ammonium compound suitable for use as such a corrosion inhibitor, to the manufacture of the quaternary ammonium compound, to compositions containing it, and to methods of using it. Quaternary ammonium compounds of the invention have the formula (I) in which R is C1-6 alkyl, C2-6 alkenyl, aryl, aralkyl; X, Y, and Z are each independently hydrogen, or R1CO—, provided that at least one of X, Y and Z is R1CO, where R1 is C5-23 alkyl or alkenyl containing 0, 1, 2 or 3 double bonds; D is C2-6 alkylene; E is C2-4 alkylene; p, q and r are each, independently, integers from 0 to 20, with the proviso that p+q+r is from 3 to 20; and A? is an anion.
    Type: Application
    Filed: May 7, 2010
    Publication date: May 24, 2012
    Applicants: STEPAN UK LIMITED, M-I DRILLING FLUIDS UK LIMITED
    Inventors: Alyn Jenkins, Neil Grainger, Michael Blezard, Mathieu Pepin
  • Publication number: 20120111152
    Abstract: Disclosed is a method for treating heap leach stacks by applying an insoluble polyimide composition, such as polysuccinimide, to the surface of an ore stack and/or incorporating the insoluble polyimide composition throughout the ore stack. The insoluble polyimide composition is then exposed to an aqueous solution to initiate hydrolysis and produce one or more water soluble products, such as hydrolyzed polyimides, polycarboxylates, polycarboxylic acids and mixtures thereof that will permeate the ore stack at a concentration sufficient to suppress scale formation within the leach stack. The water soluble products may also act to suppress scale formation in piping and channels peripheral to the leach stack, thereby reducing maintenance expenses.
    Type: Application
    Filed: August 25, 2011
    Publication date: May 10, 2012
    Inventors: Kevin GOTTSCHALK, John Richardson, Greg Rose, Rob Bedinger
  • Publication number: 20120114523
    Abstract: The present invention relates to the use of a product obtainable by the reaction of an alkoxylated fatty amine having the formula (I) wherein R is a hydrocarbyl group having 8-24 carbon atom; each B is, independently, an alkyl group having 1-4 carbon atoms, a benzyl group, or the group (AO)nH, wherein A is an alkylene group containing 2-4 carbon atoms, preferably 2 carbon atoms; each n is at least 1 and the sum of all n is 2-30; x is 2 or 3; and y is 0-3, preferably 0 or 1; or of a product obtainable by partial or total quaternisation of the alkoxylated fatty amine of formula (I); with a dicarboxylic acid derivative having the formula (IIa) or (IIb) wherein D is —OH, —Cl, or —OR3, wherein R3 is a C1-C4 alkyl group; R2 is an alkylene radical of formula —(CH2)z—, wherein z is an integer from 0 to 10, preferably from 2 to 4, and most preferably 2, and wherein the alkylene radical may be substituted by 1 or 2 —OH groups; the group —CH?CH—, or the o-phenylene group; or by reacting a product (I) with a dicarboxylic
    Type: Application
    Filed: July 1, 2010
    Publication date: May 10, 2012
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Per-Erik Hellberg, Natalija Gorochovceva
  • Patent number: 8153057
    Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed one or more active chemical species into the hot water system.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: April 10, 2012
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, David A. Grattan
  • Patent number: 8136658
    Abstract: The invention relates to a method of preserving a sensor in a container, said sensor comprising a sensing area of metallic or a semi-conducting material covered with molecules having a MW>100 Dalton, said molecules being bound to the material wherein at least the sensing area of the layer is kept submerged in a storage solution, said storage solution having a composition that consists for at least 80% by volume of at least one compound chosen from water, ethanol, triethylene glycol and isopropanol, with the provisios that if the concentration of ethanol is at least 80 vol. % of the storage solution ethanol is present in a concentration of no more than 93% by volume of the storage solution; if water is present, it is present in a concentration of less than 80% by volume of the storage solution. The invention also relates to a container containing a sensor and a storage solution.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: March 20, 2012
    Assignee: SmartTip B.V.
    Inventors: Holger Schönherr, Ewa Agnieszka Tocha-Bielak, Daniel Bastiaan Bijl, Gyula Julius Vancso
  • Publication number: 20120051965
    Abstract: The invention relates to a composition for use as a metal working fluid, which comprises A) An additive mixture that essentially consists of a N-Acylsarcosine and a naphthenic acid or a salt thereof, polyalkylene or propylene glycol and further additives; and B) A functional fluid. The composition is useful in a process for protection against corrosion or oxidative degradation of zinc, aluminum or alloys thereof, or zinc-coated steels, wherein zinc, aluminum or alloys thereof are exposed to the composition.
    Type: Application
    Filed: February 5, 2010
    Publication date: March 1, 2012
    Applicant: BASF SE
    Inventors: Anil Choudhary, Trivendra Kumar
  • Patent number: 8114343
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Zinc and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: February 14, 2012
    Assignee: Ecolab USA, Inc.
    Inventors: Kim R. Smith, Erik C. Olson, Steven E. Lentsch