Using Cyanide Patents (Class 422/35)
  • Patent number: 8900873
    Abstract: The invention relates to a method for continuously determining the concentration of at least one CN compound in an aqueous solution, wherein a carrier gas, for example compressed air, is introduced into the aqueous solution and the introduced carrier gas is fed at least partially to a gas analyzer, for example an HCN gas analyzer, the analysis data of which are considered in the determination of the concentration of the CN compound in the aqueous solution. In order to create advantageous method conditions, the temperature of the aqueous solution exposed to carrier gas is considered in the determination of the concentration of the CN compound.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: December 2, 2014
    Assignee: Voestalpine Stahl GmbH
    Inventors: Franz Parzermair, Leopold Moser, Manfred Naderer
  • Patent number: 8268241
    Abstract: A process wherein outgassing rates of volatile organic compounds (VOCs) in an object, particularly habitable vehicles, are accelerated by placing the subject object in a vacuum chamber and placing heat sources either inside the object being treated, outside the object, or both. The process includes measuring and monitoring the temperature of selected surfaces inside the object being treated. The heat sources are adjusted to maintain a temperature which is safe for the materials and which will promote maximum outgassing rates. During the treatment process, while a vacuum and heat are being applied to the subject object, the gasses in the chamber are monitored for both their composition and quantity. When the outgassing rates of the VOCs reach acceptable levels, the process cycle is terminated. The vacuum in the chamber is broken to restore atmospheric pressure, and the object being treated is removed from the chamber.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: September 18, 2012
    Inventor: Henry W. Cooper
  • Patent number: 8038939
    Abstract: A method which enhances a disinfection process by using a catalyst which increases in effective surface area during the process. Also disclosed are contact lens disinfecting systems which are designed to maintain a high concentration of hydrogen peroxide solution for a longer period of time before increasing the overall surface area of catalyst exposed to the hydrogen peroxide solution. The devices utilize pressure from expanding oxygen generated within the system through use of a small catalyst, or through exposure of only a small portion of a large catalyst, to control deployment of the large catalyst for completing disproportionation of the hydrogen peroxide.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: October 18, 2011
    Assignee: Atrion Medical Products, Inc.
    Inventor: Rowland W. Kanner
  • Patent number: 8039245
    Abstract: A method which enhances a disinfection process by using a catalyst which increases in effective surface area during the process. Also disclosed are contact lens disinfecting systems which are designed to maintain a high concentration of hydrogen peroxide solution for a longer period of time before increasing the overall surface area of catalyst exposed to the hydrogen peroxide solution. The devices utilize pressure from expanding oxygen generated within the system through use of a small catalyst, or through exposure of only a small portion of a large catalyst, to control deployment of the large catalyst for completing disproportionation of the hydrogen peroxide.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 18, 2011
    Assignee: Atrion Medical Products, Inc.
    Inventor: Rowland W. Kanner
  • Publication number: 20090085883
    Abstract: The present invention discloses an antiseptic touch panel comprising: a panel substrate, which is to be touch-operated by users; and an antiseptic layer coated on the panel substrate and having an antiseptic material with Formula (I): (X3Si)mR1Zn, m?1, n?1??(I) wherein X is a hydrolyzable silicon functional group and R1 is an isocyanate group and Z is a quaternary ammonium salt group. The antiseptic touch panel of the present invention has a safe and persistent antiseptic effect because it has a plurality of silicon functional groups to promote the covalent bonding strength between the antiseptic material and the panel substrate and has a plurality of quaternary ammonium salt groups to enhance the antiseptic effect.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 2, 2009
    Inventors: Tzu-Yi Gau, Chia-Yen Li, Chia-Chih Chang
  • Patent number: 6803377
    Abstract: The present invention provides compositions for controlling plant pests, containing the compound of the formula (I) and at least one fungicidally active compound, except for tebuconazole, cyclopropylcarboxamides and azolylmethylcycloalkanes.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: October 12, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christoph Erdelen, Wolfram Andersch, Klaus Stenzel, Astrid Mauler-Machnik, Wolfgang Krämer
  • Publication number: 20030156979
    Abstract: Combinations of Bis(Trichloromethyl) Sulfone and 1,2-dibromo-2, 4-dicyanobutane are shown to have synergistic antimicrobial properties. Preferred compositions use the two components in ratios of 1:99 to 99:1 by weight. The synergistic combinations are used in paints and adhesives, and in various industrial process waters. The synergistic compositions may be used together with a third microbiocide to enhance the composition's effectiveness against a wide variety of bacteria, molds, and yeasts and other microorganisms.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 21, 2003
    Applicant: Verichem, Inc.
    Inventors: Paul E. Carlson, H. Edwin Nehus
  • Patent number: 6475434
    Abstract: A biofilm penetrating composition for coating medical devices for substantially preventing the growth or proliferation of biofilm embedded microorganisms on at least one surface of the medical device is disclosed. A biofilm penetrating composition solution for cleaning medical devices which is capable of substantially removing all of the biofilm embedded microorganisms from at least one surface of medical devices is also disclosed. The biofilm penetrating composition coating and solution include a biofilm penetrating agent and may also include a base material. Medical devices coated with the biofilm penetrating composition and methods for coating medical devices and methods for removing biofilm embedded microorganisms from at least one surface of the medical devices are also disclosed.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: November 5, 2002
    Assignee: Baylor College of Medicine
    Inventor: Rabih O. Darouiche
  • Patent number: 5997815
    Abstract: Articles that have an antimicrobial coating containing cyanoethylated hydroxyal-kylcellulose are provided, and their use in fields where preventing microbial contamination is important, such as in the medical field, where it is critical to minimize the spread of microbes that cause infection.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: December 7, 1999
    Assignee: Huels Aktiengesellschaft
    Inventors: Christine Anders, Frank Hill, deceased, by Friedrich Frank Hill, legal representative, by Regina Luise Hill, legal representative
  • Patent number: 5922693
    Abstract: The present invention relates to an aqueous cleaning composition containing(a) 1 to 10 weight % of at least one surfactant selected from the group consisting of anionic surfactants and ethoxylated nonionic surfactants and mixtures thereof;(b) 0.2 to 10 weight % of a biostatic agent such as a C.sub.2 -C.sub.20 alkyl trimethyl ammonium halide, a C.sub.8 -C.sub.16 alkyl dimethyl benzyl ammonium halide, a polyhexamethylene biguanide hydrochloride, a 3-(trialkoxysilyl)propyl C.sub.14 -C.sub.20 alkyl dimethyl ammonium halide, ketoconazole, and zinc-bis(2-pyridinethiol 1-oxide); and(c) the balance being water; wherein said liquid cleaning composition does not contain a pigment, a chlorine containing bleach, peroxygen bleach, hydrogen peroxide, builder, water soluble or water dispersible organic binding agent, sequestering agent, acid dye, C.sub.8 -C.sub.18 fatty acid monoester of diglycerol, C.sub.8 -C.sub.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: July 13, 1999
    Assignee: Colgate-Palmolive Co.
    Inventor: Louis Oldenhove
  • Patent number: 5888428
    Abstract: Methods and compositions for generating stable, residual disinfectants during the ozonization of water, comprising the carrying out the ozonization of water in the presence of bromide ions and an effective amount of a hypobromite ion scavenger possessing imide and/or amide functionality that preferentially converts hypobromite ions to biocidal, ozone-stable derivatives thereof to thereby suppress the catalytic decomposition reaction of ozone with hypobromite ions. The methods and compositions of the present invention are useful for water disinfection and algae control, generally.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 30, 1999
    Assignee: Great Lakes Chemical Corporation
    Inventors: Jonathan N. Howarth, Julie A. McKeown, Rodney H. Sergent
  • Patent number: 5783550
    Abstract: A mold removal composition useful to remove molds adhered to furnishing and walls of homes, particularly kitchen sinks and bathroom walls, ceilings, and tiles, and a mold bleaching method are provided. The mold removal composition contains peroxide, dicyandiamide, alkali metal hydroxide or alkaline-earth metal hydroxide, and water. Its pH is 8.0-13.0.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: July 21, 1998
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Yasuhisa Kuriyama, Jun Kokubu, Yasuo Hiro, Yoshiko Tsuji, Tsuneo Kobayashi, Masahito Mikami, Shuzo Nakamura
  • Patent number: 5494588
    Abstract: The present invention provides a composition and method of administering same for inhibiting the growth of microorganisms. The composition of the present invention includes sufficient amounts of a peracetic acid and a second organic biocide. The method of the present invention includes the step of adding sufficient amounts of the peracetic acid and the organic biocide to industrial process waters.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: February 27, 1996
    Assignee: Nalco Chemical Company
    Inventor: Judy G. LaZonby
  • Patent number: 5464851
    Abstract: A composition which contains a 2-halo-2-halomethyl glutaronitrile and a 4,5-polymethylene-4-isothiazolin-3-one. The compositions exhibit anti-microbial activity and certain combinations of isothiazolinones together with the glutaronitrile are surprisingly effective against both bacteria and fungi.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: November 7, 1995
    Assignee: Zeneca Limited
    Inventor: Fraser F. Morpeth
  • Patent number: 5447684
    Abstract: Compositions, devices, and methods are disclosed for achieving rapid sterilization. A device for reducing surface tension in liquids is also disclosed. Both cationic and anionic surfactants are simultaneously present and used with a germicide to accelerate sterilization at room temperatures. One device includes a tablet, absorbent body, or other carrier which carries both an anionic surfactant and a cationic surfactant. Another device includes a hermetically sealable envelope which contains an anionic surfactant and a cationic surfactant, preferably with a germicide which impregnates an absorbent liner. The composition includes a germicide, an anionic surfactant, and a cationic surfactant. Glutaraldehyde solutions are the preferred germicides; sulfosuccinic acid, ester with ethoxylated lauryl alcohol, disodium salt is a preferred anionic surfactant; and, a quaternary ammonium salt is the preferred cationic surfactant. A sterilization method is performed by exposing an object to the disclosed compositions.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: September 5, 1995
    Inventor: Robert M. Williams
  • Patent number: 5364874
    Abstract: A composition which contains a 2-halo-2-halomethyl glutaronitrile and a 4,5-polymethylene-4-isothiazolin-3-one. The compositions exhibit anti-microbial activity and certain combinations of isothiazolinones together with the glutaronitrile are surprisingly effective against both bacteria and fungi.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: November 15, 1994
    Assignee: Zeneca Limited
    Inventor: Fraser F. Morpeth
  • Patent number: 5039483
    Abstract: A method of treating a body fluid so as to inactivate protozoa in said fluid comprises mixing the body fluid with an effective amount of a photosensitizing agent which will bind to cell-free protozoa and/or protozoan-infected cells, and then exposing the resulting mixture to visible light to inactivate the protozoa. An apparatus for use in the method includes at least one container which contains a body fluid containing protozoa and an effective amount of a photosensitizing agent to bind to the protozoa. The apparatus has at least one wall which is permeable to visible light.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: August 13, 1991
    Assignee: The Medical College of Wisconsin, Inc.
    Inventors: Fritz Sieber, Orla M. Smith
  • Patent number: 4498921
    Abstract: Water sanitizing compositions are disclosed which are comprised of a mixture of trichloroisocyanuric acid and an alkaline earth metal solubility promoting additive selected from the group consisting of the bicarbonate, carbonate, hydroxide, oxide and mixtures thereof of said alkaline earth metal. The compositions have a molar ratio of said additive to trichloroisocyanuric acid of from about 0.3:1 to about 3:1 and a moisture content of less than about 0.2 percent by weight of the compositions.The novel compositions rapidly dissolve in water bodies such as those found in swimming pools, commodes, automatic dishwashers and the like to quickly provide a sanitizing amount of available chlorine for sanitizing the water.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: February 12, 1985
    Assignee: Olin Corporation
    Inventor: John A. Wojtowicz
  • Patent number: 4472187
    Abstract: Water sanitizing compositions are disclosed which are comprised of a mixture of trichloroisocyanuric acid and an alkaline earth metal solubility promoting additive selected from the group consisting of the bicarbonate, carbonate, hydroxide, oxide and mixtures thereof of said alkaline earth metal. The compositions have a molar ratio of said additive to trichloroisocyanuric acid of from about 0.3:1 to about 3:1 and a moisture content of less than about 0.2 percent by weight of the compositions.The novel compositions rapidly dissolve in water bodies such as those found in swimming pools, commodes, automatic dishwashers and the like to quickly provide a sanitizing amount of available chlorine for sanitizing the water.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: September 18, 1984
    Assignee: Olin Corporation
    Inventor: John A. Wojtowicz
  • Patent number: 4455287
    Abstract: An aqueous oxidation-reduction composition and method for removing hydrogen sulfide gas from a fluid stream by liquid phase oxidation of the hydrogen sulfide to elemental sulfur with a chelated polyvalent metal catalyst, such as iron, wherein the composition is stabilized against rapid loss of chelated polyvalent catalyst caused by contamination of the aqueous composition with micro-organisms, such as bacteria. The aqueous composition is stabilized by incorporating in the aqueous composition and adding throughout the normal usage thereof a broad spectrum biocide in an amount which acts as a bacteriostat to prevent rapid growth of bacteria in the aqueous composition and when the bacteria concentration rises above about 1.times.10.sup.6 colonies per ml.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: June 19, 1984
    Assignee: ARI Technologies, Inc.
    Inventors: Harold S. Primack, Dom E. Reedy, Frederick R. Kin