Phosphorus Containing Patents (Class 252/400.2)
  • Patent number: 9005355
    Abstract: Anticorrosive coating compositions as disclosed comprise a binding polymer and an aluminum phosphate corrosion inhibiting pigment dispersed therein. The coating composition comprises up to 25 percent by weight aluminum phosphate. The binding polymer can include solvent-borne polymers, water-borne polymers, solventless polymers, and combinations thereof. The aluminum phosphate is made by sol gel process of combining an aluminum salt with phosphoric acid and a base material. Aluminum phosphate colloidal particles are nanometer sized, and aggregate to form substantially spherical particles. The coating composition provides a controlled delivery of phosphate anions of 100 to 1,500 ppm, depending on post-formation treatment of the aluminum phosphate, and has a total solubles content of less than 1500 ppm, The amorphous aluminum phosphate is free of alkali metals and alkaline earth metals, and has a water adsorption potential of up to about 25 percent by weight water when present in a cured film.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: April 14, 2015
    Assignee: Bunge Amorphic Solutions LLC
    Inventor: Raymond E. Foscante
  • Patent number: 8859829
    Abstract: The present invention relates in part to a method of stabilizing chloropropenes, such as 1,1,2,3-tetrachloropropene, otherwise known to decompose and degrade, and to the resulting stabilized chloropropene, using a morpholine compound and/or a trialkyl phosphate compound as defined herein. Such stabilized chloropropenes are useful in the manufacture of hydrofluoroolefins such as 2,3,3,3-tetrafluoroprop-1-ene (1234yf).
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 14, 2014
    Assignee: Honeywell International Inc.
    Inventors: Haluk Kopkalli, Haiyou Wang, Hsueh Sung Tung, Daniel C. Merkel
  • Patent number: 8845930
    Abstract: The invention provides a method for pre-treating a metal surface with a corrosion inhibitor prior to painting, a method for inhibiting corrosion in a cooling system, wherein the cooling system includes a metal surface and a coolant; and a method for inhibiting corrosion of a reinforcement steel in concrete wherein the method comprising the step of adding to a concrete mixture an anti-corrosive mixture.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: September 30, 2014
    Assignee: Pigmentan Ltd.
    Inventors: Gregory Pipko, Zvi Miller
  • Publication number: 20140135435
    Abstract: A composition comprising a mixture of at least two different alkylaryl phosphites, wherein some alkyl groups have a different number of carbon atoms than other alkyl groups and wherein the mixture is a liquid at ambient conditions.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Applicant: ADDIVANT USA LLC
    Inventors: Michael Gelbin, Jonathan Hill, Maurice Power
  • Patent number: 8628689
    Abstract: The invention relates to a low temperature-curable coating composition comprising a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: January 14, 2014
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Peter Visser, Scott Alan Hayes
  • Publication number: 20130310539
    Abstract: The present invention relates to a method to treat a grafts, implant, scaffold, and constructs, including allografts, xenografts, autografts, and prosthetics comprising collagen, with an inhibitor of collagen cross-links and/or advanced glycation endproducts (AGE), in order to alleviate the mechanical weakness induced by the cross-links The invention also provides for kits for use in the operating theater during autograft, allograft or xenograft procedures, or for preparing allograft, xenografts or prosthetics that have not been already treated prior to packaging. The kit comprises a first agent or agents that inhibit collagen cross-links and/or advanced glycation endproducts, instructions for use, optionally a wash or rinse agent, and a device for containing the graft and first agent.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 21, 2013
    Inventors: Jonathan W. Bourne, Peter A. Torzilli
  • Patent number: 8431202
    Abstract: A polyester composition containing: a) aluminum atoms; and b) alkaline earth atoms or alkali metal atoms or alkali compound residues such as lithium atoms; and c) particles comprising titanium, zirconium, vanadium, niobium, hafnium, tantalum, chromium, tungsten, molybdenum, iron, or nickel atoms or combinations thereof, where the particles improve the reheat rate of the polyester composition. The polyester polymer compositions may also contain phosphorus catalyst deactivators/stabilizers. The polyester compositions and the articles made from the compositions such as bottle preforms and stretch blow molded bottles have improved reheat rate while maintaining low haze, high L*, a b* below 3, and have low levels of acetaldehyde. In the process for making the polyester polymer, the polymer melt is polycondensed in the presence of a) and b), with the particles c) added in a melt phase process or added to the polymer in an injection molding machine or extruder.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: April 30, 2013
    Assignee: Grupo Petrotemex, S.A. de C.V.
    Inventors: Donna Rice Quillen, Rodney Scott Armentrout, Mary Therese Jernigan, Steven Lee Stafford, Zhiyong Xia
  • Publication number: 20130059380
    Abstract: The present invention provides compositions (i.e., preservation solutions) for preserving biologies comprising at least one membrane penetrable sugar, at least one membrane impenetrable sugar, at least one anti-microbial agent, at least one anti-oxidant, adenosine, albumin, a salt, a buffer, and a chelating agent, and to methods of using such preservation solutions to preserve biologies.
    Type: Application
    Filed: February 16, 2011
    Publication date: March 7, 2013
    Applicant: HeMemics Biotechnologies, Inc.
    Inventors: David Ho, Stephen Bruttig
  • Patent number: 8357324
    Abstract: The present invention relates to a process for the production of polyethylene hollow articles, which process comprises charging the polyethylene with one or more NO-acyl hindered amine additives containing one or more groups of formula (I), filling this mixture into a mold, heating this mold in an oven to above 280° C., such that the additized polyethylene melts, rotating the mold around at least 2 axes, the additized polyethylene spreading to the walls, cooling the mold while still rotating, opening it, and taking the resultant hollow article out, where the group of formula (I) is where Ra is a monoacyl or diacyl radical; R1-R4 are each C1-C6alkyl; and R5 and R6 are each, independently of one another, hydrogen, C1-C6alkyl or C6-C10aryl; or R5 and R6 are together oxygen.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: January 22, 2013
    Assignee: BASF SE
    Inventors: Jiong Yu, John Sigler, Eric Wallis
  • Publication number: 20120310022
    Abstract: The present invention relates to a composition and method for inhibiting the formation of naphthenate solids in a liquid hydrocarbon. The method includes contacting a composition including a rosin amine having a formula (I): or (II): where formula (AA): represents a single or double bond; R1, R2 and R5 each independently represent H, alkyl, alkenyl or an alkynyl group each having between one and ten carbon atoms, —(R3O)nR4 wherein R3 is an alkyl group having 1 to 3 carbon atoms and R4 is H, alkyl, alkenyl or an alkynyl group each having between one and ten carbon atoms; n is an integer between 5 and 50; X is a halide, sulphate, phosphate or acetate ion; and a demulsifier intermediate with the liquid hydrocarbon.
    Type: Application
    Filed: November 25, 2010
    Publication date: December 6, 2012
    Inventors: Chandrashekhar Khandekar, Suguna Gopal, James Smith
  • Publication number: 20120187345
    Abstract: An oxygen-scavenging composition comprising (I) an oxidizable metal component, (II) an electrolyte component, (III) a non-electrolytic, acidifying component, and (IV) a non ionic surfactant component, preferably selected from the group consisting of alkyl polyethylene glycol ethers, polyethylene glycols, polypropylene glycols, polypropylene glycol polyethylene glycol block copolymers and polyethylene polyethylene glycol block copolymers.
    Type: Application
    Filed: August 13, 2010
    Publication date: July 26, 2012
    Applicant: BASF SE
    Inventors: Edoardo Menozzi, Enrico Galfré
  • Patent number: 8158039
    Abstract: A method for producing an optical film is disclosed. A cellulose ester, a sugar ester prepared by esterification of a sugar compound formed by 1 to 12 of structures selected by a furanose structure and a pyranose structure and an acryl type polymer having a weight average molecular weight of from 5,000 to 30,000 are subjected to melt-casting.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: April 17, 2012
    Assignee: Konica Minolta Opto Inc.
    Inventors: Yasushi Irie, Koichi Saito, Kenzo Kasahara
  • Patent number: 8067490
    Abstract: A composition and method for increasing the hydrolytic stability of a stabilizer composition comprising a first phosphite, a second phosphite, an optional phosphonite and an acid scavenger.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: November 29, 2011
    Assignee: Chemtura Corporation
    Inventors: Hayder Zahalka, Karl Diefenbach
  • Patent number: 7985456
    Abstract: Polymer blends are disclosed that comprise one or more polybutadiene homopolymers or copolymers having at least one functionality capable of entering into condensation reactions; one or more polyethylene terephthalate homopolymers or copolymers obtained using a catalyst system comprising aluminum atoms and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues, optionally obtained by a melt-phase polymerization process; and one or more transition metal atoms. The blends are useful for packaging, and exhibit improved oxygen-scavenging activity compared with blends made using many conventional polyethylene terephthalate polymers prepared with conventional catalyst systems.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: July 26, 2011
    Assignee: Grupo Petrotemex, S.A. de C.V.
    Inventors: Mark Edward Stewart, Rodney Scott Armentrout
  • Patent number: 7956205
    Abstract: Disclosed is a method for the reduction of residual peroxides in vegetable oils, preferably epoxidized vegetable oils using a phosphorous compound preferably alkyl/aryl substituted phosphite compounds or hypophosphorous acid and its derivatives.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: June 7, 2011
    Assignee: Galata Chemicals, LLC
    Inventors: Michael G. Denoux, Ritchie Tregre, Garrett Mineo
  • Patent number: 7955525
    Abstract: Disclosed is an oil composition wherein the oil contains measurable amounts of peroxide resulting from peroxidation, and also includes an effective amount of a peroxide-reducing phosphorous compound, preferably an alkyl/aryl substituted phosphite compound or phosphinic acid (H3PO2) and its derivatives.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 7, 2011
    Assignee: Galata Chemicals, LLC
    Inventors: Michael G. Denoux, Ritchie Tregre, Garrett Mineo
  • Patent number: 7883642
    Abstract: An antioxidant composition containing an antioxidant represented by the following formula (I) and a metal salt of fatty acid of a carbon number of 4 to 18, wherein a weight ratio of the antioxidant (I) and the metal salt of fatty acid is in a range of (100:0.1) to (100:200).
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: February 8, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Kenji Kimura
  • Publication number: 20110028616
    Abstract: A composition comprising a mixture of at least two different alkylaryl phosphites, wherein some alkyl groups have a different number of carbon atoms than other alkyl groups and wherein the mixture is a liquid at ambient conditions.
    Type: Application
    Filed: July 26, 2010
    Publication date: February 3, 2011
    Inventors: Michael E. Gelbin, Jonathan S. Hill, Maurice Power
  • Publication number: 20110008559
    Abstract: The present invention relates to a polymer composition, comprising—a polyolefin, —a stericallyhindered phenol of the following formula (I), wherein the groups X, which can be the same or different, have the following formula (II), wherein R1 and R4, which can be the same or different, are an alkyl group having from 1 to 8 carbon atoms; R2, R3, R5, and R6, which can be the same or different, are hydrogen or an alkyl group having from 1 to 8 carbon atoms, —a hydrotalcite and/or bis(2,4-dicumylpheny)pentaerythritol diphosphite.
    Type: Application
    Filed: January 28, 2009
    Publication date: January 13, 2011
    Inventor: Franz Ruemer
  • Publication number: 20100187481
    Abstract: The invention relates to the use of ionic liquids for improving the lubricating effect of synthetic, mineral and native oils. The invention relates in particular to an improved lubricating composition that is protected from thermal and oxidative attack.
    Type: Application
    Filed: May 20, 2008
    Publication date: July 29, 2010
    Inventors: Günther Bodesheim, Martin Scgnudt-Amelunxen, Dieter Sohn, Stefan Grundei, Andrea Höpke
  • Publication number: 20090197997
    Abstract: A granular composition comprising an organic compound having a melting point of 30 to 100° C., and a compound represented by the formula (1): wherein R1 and R2 independently represent a hydrogen atom, a C1-8 alkyl group, or a C5-8 cycloalkyl group, R3 represents a hydrogen atom or a C1-8 alkyl group, and X represents a single bond, a sulfur atom, an oxygen atom, a C1-8 alkylidene group or a C5-8 cycloalkylidene group.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 6, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kazuhiro KITAMURA, Yoshikazu Kimura, Kenji Kimura
  • Patent number: 7459102
    Abstract: A corrosion inhibitor that includes several oxo-anion compositions useful for preventing the propagation of pit corrosion on aluminum and aluminum alloys. The oxo-anion compositions may include soluble polymeric oxidic acids comprising combinations of molybdenum, phosphorous, tungsten, and silicon. These compositions are useful as corrosion inhibitors in high-moisture, corrosive environments, such as radiators and cooling systems. For low-moisture environments, these oxo-anion compositions can be reacted with a counter-ion, such as various metals, including, but not limited to the rear earth metals, to form a soluble salt. The salt can then be adsorbed onto a carrier, such as paint pigments, which can then be applied to the surfaces of aluminum and aluminum alloys. These surface adsorbates then become sparingly soluble and are gradually released over time in the presence of an aqueous corrosive agent so as to prevent propagation of pit corrosion.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: December 2, 2008
    Assignee: The Boeing Company
    Inventor: Martin W Kendig
  • Publication number: 20080177005
    Abstract: There is provided a phosphite composition comprising 100 parts by weight of a phosphite represented by the formula (1) and 0.5 to 8 parts by weight of an aliphatic hydrocarbon lubricant having a softening point or a melting point of not higher than 115° C., wherein the content of the phosphite (1) in said composition is 30 to 99.5% by weight.
    Type: Application
    Filed: November 9, 2007
    Publication date: July 24, 2008
    Inventors: Kenji Kimura, Kunihito Miyake, Hideo Narahara
  • Patent number: 7368493
    Abstract: A carbodiimide composition having an improved heat resistance which meets conventional requirements for a carbodiimide compound to be compounded in an ester-group-containing resin or a biodegradable plastic, and exhibiting no coloring problems due to yellowing, and having a superior stabilizing effect agains hydrolysis. The carbodiimide composition comprises a carbodiimide compound (A) and an antioxidant (B), having a 5% weight loss temperature not lower than 250° C. as determined by a thermogravimetric (TG) method, wherein an antioxidant (B) is dispersed and present in the composition by admixing during synthesis of a carbodiimide compound (A), a stabilizer against hydrolysis mainly comprising the carbodiimide composition and a thermoplastic resin composition containing the same.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 6, 2008
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura
  • Patent number: 7199181
    Abstract: A stabilizer composition is described and comprises a 2-cyano-3,3-diarylacrylate, a sterically hindered monomeric amine, a sterically hindered phenol and, where appropriate, a chromane derivative and/or an organic phosphite and/or phosphonite. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: April 3, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Heidenfelder, Manfred Appel
  • Patent number: 7196135
    Abstract: A stabilizer composition is described and comprises a 3-arylacrylate, a polymeric compound with molecular weight at least 2000, bearing, on a polymeric framework, side groups having amine functions, where all of the substituents in the ?-position to the amine nitrogen atom are other than hydrogen, and comprises a sterically hindered phenol. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: March 27, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Heidenfelder, Manfred Appel
  • Patent number: 7148274
    Abstract: where R is an aryl moiety, such as phenyl, naphthyl or biphenylyl, or is phenyl substituted by one or more trifluoromethyl, bromo or cyano, and E1 and E2 are independently hydrogen, alkyl, aralkyl and the like are prepared by reaction of a benzotriazole substituted on the 5-position of the benzo ring by a halogen atom with a arylboronic acid or ester in the presence of a transition-metal catalyst, such as palladium (II) diacetate. The benzotriazole compounds of formula I are particularly efficacious as stabilizers for automotive coatings and candle wax.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: December 12, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Stephen D. Pastor, Andrew B. Naughton, Robert Detlefsen, Mervin G. Wood, Joseph Suhadolnik, Anthony DeBellis, Deborah DeHessa
  • Patent number: 7083743
    Abstract: The invention relates to a synergistic mixture comprising a) at least one compound from the group which consists of the phosphanes of the formula (I), (di/oligo)phosphanes of the formulae (II) and (III) and cyclophosphanes of the formula (IV) and b) at least one 6-hydroxychromane derivative of the general formula (V) and also to a process which stabilizes polymers with respect to thermooxidative degradation by addition and incorporation of this synergistic mixture.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: August 1, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Christoph Kröhnke, Peter Staniek
  • Patent number: 6841061
    Abstract: An Anti-gelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the molecule, and precursor compounds capable of forming an NO radical, (b) a phosphorus-containing compound, and (c) at least one compound selected from the group consisting of heterocyclic aldehydes, aromatic aldehydes and condensates of these aldehydes. Clogging in an apparatus for separating and refining a hydrocarbon mixture containing a conjugated diene can be prevented by adding the anti-gelling agent in the apparatus.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 11, 2005
    Assignee: Zeon Corporation
    Inventor: Keizo Ukita
  • Patent number: 6790899
    Abstract: A combination of a potassium salt of a perfluoroalkane sulfonate and a sodium salt of toluene sulfonic acid, preferably in the presence of an antidrip agent to provide high melt strength, act synergistically to provide flame-retarded polycarbonate compositions at low levels. Thus, a flame-retarded polycarbonate resin can be made by adding to the polycarbonate resin an effective flame-retardant amount of a potassium salt of a perfluoroalkane sulfonate and a sodium salt of toluene sulfonic acid. The two salts may be formulated in advance into an additive composition.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: September 14, 2004
    Assignee: General Electric Company
    Inventors: Rajendra K. Singh, Ye-Gang Lin
  • Patent number: 6787066
    Abstract: The present invention is a stabilizing system for improving the melt viscosity of polyolefin resin during fiber processing. The addition of a liquid phosphite melt processing stabilizer to polypropylene homopolymer powder improves processing stability during spinning. The present invention covers spraying the liquid phosphite onto the powder along with octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate which is applied via mineral oil solution in a steamer.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: September 7, 2004
    Assignee: Sunoco Inc (R&M)
    Inventors: Kimberly Miller McLoughlin, Edwin B. Townsend, Victor M. DiNardo
  • Patent number: 6733693
    Abstract: An acrylonitrile solution of maleimide manifesting transparency, precluding coloration and opacification during the course of handling, and excelling in stability, a method for the preparation of the acrylonitrile solution, and an acrylonitrile based copolymer obtained by using the acrylonitrile solution are provided. The acrylonitrile solution of maleimide is such that, when it is subjected to a forced coloration test, the differences &Dgr;L, &Dgr;a, &Dgr;b values (invariably as absolute values) each between L, a, and b values before and after the test are respectively not more than 5, not more than 5, and not more than 10. The acrylonitrile solution of maleimide is prepared by lowering the water content in the acrylonitrile solution to a level of not more than 0.1% by weight, or causing the acrylonitrile solution to permit coexistence therein of a polymerization inhibitor and lowering the water content in the acrylonitrile solution to a level of not more than 0.3% by weight.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: May 11, 2004
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kazuo Kishino, Kinichi Nakayama, Fumioki Shimoyama, Yuichi Kita
  • Patent number: 6716370
    Abstract: A corrosion inhibitor is described which includes several supramolecular oxo-anion compositions useful for preventing the propagation of pit corrosion on aluminum and aluminum alloys. The oxo-anion compositions preferably include soluble polymeric oxidic acids comprising combinations of molybdenum, phosphorous, tungsten, and silicon. These compositions are useful as corrosion inhibitors in high-moisture, corrosive environments, such as radiators and cooling systems. For low-moisture environments, these oxo-anion compositions can be reacted with a counter-ion, such as various metals, including, but not limited to the rear earth metals, to form a soluble salt. The salt can then be adsorbed onto a carrier, such as paint pigments, which can then be applied to the surfaces of aluminum and aluminum alloys. These surface adsorbates then become sparingly soluble and are gradually released over time in the presence of an aqueous corrosive agent so as to prevent propagation of pit corrosion.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: April 6, 2004
    Assignee: The Boeing Company
    Inventor: Martin William Kendig
  • Publication number: 20030187111
    Abstract: The invention relates to a synergistic mixture comprising
    Type: Application
    Filed: January 8, 2003
    Publication date: October 2, 2003
    Inventor: Peter Staniek
  • Patent number: 6515052
    Abstract: A compacted particulate polymer additive composition in a dry granular form formed from the following components: (a) at least one particulate organic phosphite, organic phosphonite, and/or organic phosphonate, and (b) one or more particulate polymer additives other than an organic phosphite, organic phosphonite, or organic phosphonate; wherein the particles of said composition are held together in compacted dry granular form exclusively or substantially exclusively by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (a), and optionally by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (b). Compositions of this type except that there is no component (b) are also described.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: February 4, 2003
    Assignee: Albemarle Corporation
    Inventor: John Semen
  • Publication number: 20030020048
    Abstract: The invention relates to a synergistic mixture comprising
    Type: Application
    Filed: June 13, 2002
    Publication date: January 30, 2003
    Inventors: Christoph Krohnke, Peter Staniek
  • Patent number: 6509096
    Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which at least one polyvalent inorganic acid and/or oxalic acid are or is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: January 21, 2003
    Assignee: BASF Coatings AC
    Inventors: Günther Ott, Joachim Woltering, Wilfried Stübbe, Ulrike Röckrath, Maximilian Bendix, Ulrich Kalck, Jan Berg, Götz-Ekkehard Sapper
  • Patent number: 6482483
    Abstract: A composition comprising tris(hydroxymethyl)phosphine or phosphorus-containing salts or condensates of those salts with nitrogen-containing compounds coated or absorbed onto a solid or porous substrate is disclosed. The salts or condensates are based on tetrakis(hydroxymethyl)phosphonium salts. The substrate has a melting point greater than 70° C. and is an optionally hydroxyl-substituted di- or polycarboxylic acid. The compositions may be used with water soluble film forming polymers to make sachets or bags containing sachets or bags of these phosphorous-containing compositions along with sachets or bags of compositions that are incompatible with these phosphorous-containing compositions.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: November 19, 2002
    Assignee: Rhodia Consumer Specialties Limited
    Inventors: Stephen David Fidoe, Christopher David Imrie, Christopher Raymond Jones, Robert Eric Talbot
  • Patent number: 6455159
    Abstract: The invention provides for oxidatively resistant carbon/carbon composites and other graphite-like material, a method for the preparation of these materials, and their use in high temperature applications, preferably in brakes for airplanes. The carbon/carbon composite or graphite-like material, which is resistant to oxidation at high temperatures comprises a fiber-reinforced carbon/carbon composite or graphite in contact with a phosphoric acid based penetrant salt solution which contains the ions formed from the combination of the following: 10-80 wt % H2O, 20-70 wt % H3PO4, 0-25 wt % MnHPO4.1.6H2O, 0-30 wt % Al(H2PO4)3, 0-2 wt % B2O3, 0-10 wt % Zn3(PO4)2 and 0.1-25 wt % alkali metal mono-, di-, or tri-basic phosphate.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: September 24, 2002
    Assignee: Honeywell International Inc.
    Inventors: Terence B. Walker, Laurie A. Booker
  • Patent number: 6420461
    Abstract: The present invention relates to novel compounds of the formula (III) in which the substituents are as defined in the description, to a process for their preparation and to mixtures with other compounds. The compounds of the formula (III) are suitable for stabilizing organic material against the effect of light and heat.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 16, 2002
    Assignee: Clariant GmbH
    Inventors: Thomas Stährfeldt, Mathias Mehrer, Matthias Zäh, Gerhard Pfahler
  • Patent number: 6251972
    Abstract: Single-material recycled thermoplastics from commercial and industrial waste can be stabilized against thermal oxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and an inorganic compound from the series consisting of metal oxides, hydroxides and carbonates.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: June 26, 2001
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Franciszek Sitek