Chlorate Or Perchlorate Patents (Class 252/187.31)
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Publication number: 20150086470Abstract: The present invention relates to a composition for generating oxygen, comprising at least one oxygen source selected from chlorates and perchlorates, to an oxygen generator comprising such a composition, and a method for generating oxygen by decomposing such a composition. The present invention further relates to the use of transition metal ortho-phosphate compounds ortho-vanadate compounds and mixed ortho-phosphate-vanadate compounds as multifunctional components in the oxygen generating compositions.Type: ApplicationFiled: September 23, 2014Publication date: March 26, 2015Inventor: Christoph Kallfass
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Publication number: 20150076401Abstract: According to one aspect of the invention, a composition for a stable chlorine dioxide precursor comprising an oxy halide salt is provided.Type: ApplicationFiled: November 21, 2014Publication date: March 19, 2015Applicant: SABRE INTELLECTUAL PROPERTY HOLDINGS LLCInventor: John Y. MASON
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Patent number: 8366961Abstract: This invention comprises a lightweight, portable chemical combination of reagents for sterilizing or disinfecting objects in the absence of electrical power or fire. The chemical combination includes a chemical oxidant with the capacity to liberate a biocidal intermediate, a chemical reductant of the oxidant with the capacity to react with the oxidant, and an effector to induce a reaction between the oxidant and reductant. In one embodiment, the oxidant comprises chlorite, the reductant comprises sulfite, and the effector comprises ascorbate. In another embodiment, the chemical combination comprises the oxidant, reductant, effector and iron-activated magnesium. When water or water solutions are added to either embodiment, the chemical combination generates heat, steam and a biocidal intermediate that can destroy contaminating microorganisms. In one embodiment, the biocidal intermediate is a halogen-based biocidal intermediate, such as chlorine dioxide.Type: GrantFiled: December 23, 2010Date of Patent: February 5, 2013Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Christopher J. Doona, Maria Agudelo Curtin, Irwin A. Taub, Kenneth Kustin
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Publication number: 20120255692Abstract: The invention relates to bleach compositions comprising organic acyl polyoxychlorine and methods for producing said bleach compositions. The bleach compositions form reactive oxygen species when contacted by chromophores.Type: ApplicationFiled: April 8, 2011Publication date: October 11, 2012Inventor: Roy W. Martin
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Patent number: 8168078Abstract: Neutral calcium-aluminum double salts of the formula (A): Ca2m(Zn2n)Al2(OH)6+2(2m+2n?1)An*oH2O??(A), where the following apply for m and n:m=0.5 to 3 and 0.5m?n>0; An=CO3, where this may be replaced completely or partially by at least one of the following groups selected from OH, ClO4 and H3CS(?O)2O (triflate) and o=0 to 3. The present invention further relates to their preparation, use in compositions and stabilizer systems and uses thereof.Type: GrantFiled: May 21, 2009Date of Patent: May 1, 2012Assignee: Nabaltec AGInventors: Reiner Sauerwein, Alfred Reimer, Ludwig Edenharter, Manfred Sorgalla, Wolfgang Wehner
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Publication number: 20110140038Abstract: An oxygen-generating liquid composition is described comprising compositions of water plus lithium chlorate as a saturated solution and as a mixture of saturated solution plus precipitated solids. The composition further comprises catalysts. The oxygen is produced via thermal decomposition. Uses of the composition include generation of oxygen for power production or for breathable air. A principal benefit is that the composition is an easily handled liquid stored in un-pressurized tank.Type: ApplicationFiled: November 17, 2010Publication date: June 16, 2011Inventors: Kenneth Lee Presley, Scott Clarence Meyers
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Patent number: 7671118Abstract: A stabilizer system for stabilizing halogen-containing polymers comprising a perchlorate salt and at least one indole compound, a composition comprising such a stabilizer system, process for stabilizing a chlorine-containing polymer using such a stabilizer system, and an article manufacture comprising PVC stabilized by such a stabilizer system.Type: GrantFiled: March 28, 2006Date of Patent: March 2, 2010Assignee: Chemtura Vinyl Additives, GmbHInventors: Wolfgang Wehner, Hans-Helmut Friedrich
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Patent number: 7572389Abstract: The present invention is a stabiliser composition for halogen-containing polymers, comprising a salt of a halogen-containing oxy acid and an inorganic or organic acid or an inorganic base. The present invention relates also to a process for the preparation of such stabiliser compositions and to halogen-containing polymers comprising such stabiliser compositions.Type: GrantFiled: April 12, 2005Date of Patent: August 11, 2009Assignee: Baerlocher GmbHInventors: Stefan Fokken, Jürgen Hauk, Manfred Weigl
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Patent number: 7550525Abstract: An aluminum hydroxide composition is disclosed, having diminished tendency to cause discoloration on heating at 177° C. of a plastic composition whose major polymeric component is polyvinyl chloride, comprising aluminum hydroxide and an amount, effective in diminishing discoloration, of at least one inorganic perchlorate salt selected from the group consisting of alkali metal perchlorates and alkaline earth metal perchlorates.Type: GrantFiled: August 9, 2005Date of Patent: June 23, 2009Assignee: Crompton CorporationInventors: Kook Jin Bae, Stuart D. Brilliant
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Patent number: 7070710Abstract: The invention relates to a novel composition useful as a feed at production of chlorine dioxide, said composition being an aqueous solution comprising from about 1 to about 6.5 moles/liter of alkali metal chlorate, from about 1 to about 7 moles/liter of hydrogen peroxide and at least one of a protective colloid, a radical scavenger or a phosphonic acid based complexing agent, wherein the pH of the aqueous solution is from about 1 to about 4. The invention also concerns a process for producing chlorine dioxide using the novel composition.Type: GrantFiled: September 7, 1999Date of Patent: July 4, 2006Assignee: Eka Chemicals Inc.Inventors: Joel Tenney, Gunilla Jadesjö, Cecilia Bojrup Andresen
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Patent number: 7056538Abstract: Sodium hypochlorite disinfectant solution having a pH of between 10.1 and 10.7 and comprising from 0.021 to 5.76% (w/v) of sodium hypochlorite and, relative to the said amount of sodium hypochlorite, not more than 2% of sodium chlorate.Type: GrantFiled: July 23, 2002Date of Patent: June 6, 2006Assignee: Aziende Chimiche Riunite Angelini Francesco A.C.R.A.F. S.p.A.Inventors: Mario Pinza, Marcello Marchetti
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Patent number: 7009082Abstract: A process is described for reducing the discoloration of PO3G. The discolored polymer is contacted with adsorbent and separated therefrom, for instance, by filtration. The treated polytrimethylene, preferably, has an APHA color of less than about 50 and a molecular weight of about 250 to about 5000.Type: GrantFiled: August 5, 2003Date of Patent: March 7, 2006Assignee: E.I. du Pont de Nemours and CompanyInventors: Hari Babu Sunkara, Hiep Quang Do
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Patent number: 6890453Abstract: The present invention is a stabiliser composition for halogen-containing polymers, comprising a salt of a halogen-containing oxy acid and an inorganic or organic acid or an inorganic base. The present invention relates also to a process for the preparation of such stabiliser compositions and to halogen-containing polymers comprising such stabiliser compositions.Type: GrantFiled: November 21, 2003Date of Patent: May 10, 2005Assignee: Baerlocher GmbHInventors: Stefan Fokken, Jürgen Hauk, Manfred Weigl
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Patent number: 6866794Abstract: The oxygen generating compositions are formed from a metal powder as a fuel, strontium peroxide as a chlorine suppressant, a catalyst, a reaction rate modifier, and an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof. The oxygen generating compositions can optionally also further comprise a transition metal oxide catalyst, and can optionally further include a binder as a pressing aid for forming an oxygen generating oxygen generating block or core. The oxygen generating compositions can be formed from zero to about 15% by weight of metal powder as a fuel, about 0.1%-20% by weight strontium peroxide, from zero to about 15% by weight of a transition metal oxide catalyst, from zero to about 5% of an optional binder, and the remainder of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof.Type: GrantFiled: November 15, 2000Date of Patent: March 15, 2005Assignee: BE Intellectual Property Inc.Inventors: Yunchang Zhang, James C. Cannon
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Patent number: 6814984Abstract: The present invention is directed to frozen biocidal compositions. Specifically, the biocidal compositions comprise a frozen aqueous solution of a plurality of ions selected from the group consisting of halide and oxyhalide ions. The frozen biocidal compositions are useful in preserving or extending the shelf-life of perishable articles.Type: GrantFiled: February 8, 2002Date of Patent: November 9, 2004Assignee: Clean Water International LLCInventors: David C. Rose, Lawrence J. Ventura
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Patent number: 6352652Abstract: The oxygen generation compositions include about 0.5-15% by weight of a substantially carbon-free metal fuel, and about 0.1-20% by weight of alkali metal silicate, stannate, titanate or zirconate as a reaction rate and core rheology modifier and chlorine suppresser. The oxygen generating compositions also contain about 0.1-15% by weight of a transition metal oxide catalyst; and the remainder is substantially an alkali metal chlorate or perchlorate.Type: GrantFiled: April 16, 2001Date of Patent: March 5, 2002Assignee: BE Intellectual Property, Inc.Inventors: Yunchang Zhang, James C. Cannon
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Publication number: 20010030311Abstract: The oxygen generation compositions include about 0.5-15% by weight of a substantially carbon-free metal fuel, and about 0.1-20% by weight of alkali metal silicate, stannate, titanate or zirconate as a reaction rate and core rheology modifier and chlorine suppresser. The oxygen generating compositions also contain about 0.1-15% by weight of a transition metal oxide catalyst; and the remainder is substantially an alkali metal chlorate or perchlorate.Type: ApplicationFiled: April 16, 2001Publication date: October 18, 2001Inventors: Yunchang Zhang, James C. Cannon
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Patent number: 6274064Abstract: A gas generating composition comprising ammonium nitrate and a non-toxic metal oxide which reduces the pressure exponent and enables the composition to sustain combustion at or near atmospheric pressure, thereby improving combustion efficiency. The composition is useful for various purposes, such as inflating a vehicle occupant restraint, i.e., an air bag for an automotive vehicle or aircraft, as well as aircraft escape chutes or the like.Type: GrantFiled: November 12, 1999Date of Patent: August 14, 2001Assignee: Atlantic Research CorporationInventor: Brian K. Wheatley
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Patent number: 6264896Abstract: The oxygen generation composition utilizes magnesium oxide to modify and smooth the oxygen generation rate, suppress chlorine formation, improve the rheology and uniformity of performance of an operating chemical oxygen candle, and to facilitate the mixing of the candle ingredients. The oxygen generation composition typically comprises a metal powder as a fuel; magnesium oxide; and an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof. The composition can also include a transition metal oxide catalyst, and can include a binder.Type: GrantFiled: August 30, 2000Date of Patent: July 24, 2001Assignee: Be Intellectual Property, Inc.Inventors: Yunchang Zhang, James C. Cannon
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Patent number: 6231816Abstract: The oxygen generation compositions include about 0.5-15% by weight of a substantially carbon-free metal fuel, and about 0.1-20% by weight of alkali metal silicate, stannate, titanate or zirconate as a reaction rate and core rheology modifier and chlorine suppresser. The oxygen generating compositions also contain about 0.1-15% by weight of a transition metal oxide catalyst; and the remainder is substantially an alkali metal chlorate or perchlorate.Type: GrantFiled: March 14, 2000Date of Patent: May 15, 2001Assignee: BE Intellectual PropertyInventors: Yunchang Zhang, James C. Cannon
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Patent number: 6193907Abstract: The chlorate/perchlorate based oxygen generating compositions contain about 0.5-15% by weight of metal powder for use as a fuel selected from the group consisting of iron, nickel, cobalt and mixtures thereof; about 0.1% to about 15% by weight of at least one transition metal oxide catalyst; greater than 5% to about 25% by weight of an alkali metal silicate as a reaction rate and core rheology modifier, binder and chlorine suppresser; and the remainder substantially comprising an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof. The alkali metal silicate can be selected from the group consisting of sodium metasilicate, sodium orthosilicate, lithium metasilicate, potassium silicate, and mixtures thereof. The oxygen generating composition can also optionally contain a binder selected from the group consisting of glass powder, fiber glass and mixtures thereof.Type: GrantFiled: April 7, 2000Date of Patent: February 27, 2001Assignee: Be Intellectual Property, Inc.Inventors: Yunchang Zhang, Girish S. Kshirsagar, James C. Cannon