Nitrogen Or Sulfur In Phosphorus Compound Patents (Class 252/400.21)
  • Patent number: 11517551
    Abstract: The present invention pertains to the use for preventing or treating intestinal infections caused by gram-positive bacteria in animals of an antibacterial compound selected from lactylate in accordance with formula 1, R2—COO—[—CH(CH3)—COO]n—R1??Formula 1 or a Na, K, Ca, Mg, Fe(II), Zn, NH4, or Cu(II) salt thereof, a glycolylate of formula 2, R2—COO—[—CH2—COO]n—R1??Formula 2 or a Na, K, Ca, Mg, Fe(II), Zn, NH4, or Cu(II) salt thereof, a lactate ester of formula 3, HO—CH(CH3)—COO—R22??Formula 3 and/or a glycolic acid ester of formula 4, HO—CH2—COO—R2??Formula 4 wherein R1 is selected from H, n stands for an integer with a value of 1-10, and R2 stands for a C1-C35 alkyl or alkenyl chain which may be branched or unbranched. The compound, which preferably is a lactylate or a Na, K, Ca, Mg, Fe(II), Zn, NH4, or Cu(II) salt thereof, is particularly useful in the treatment or prevention of Clostridia. An animal nutrition composition and a method for preventing or treating infections are also claimed.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: December 6, 2022
    Assignee: PURAC BIOCHEM BV
    Inventor: Anne Cazemier
  • Patent number: 11214750
    Abstract: The present disclosure relates to a lubricant composition comprising a first phosphorus compound, a second phosphorus compound, and a third phosphorus compound, wherein the first phosphorus compound is present in the lubricant composition in an amount to provide between about 120 and 350 ppm phosphorus. The lubricant composition may provide robust anti-wear and reduced pitting.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 4, 2022
    Assignee: AFTON CHEMICAL CORPORATION
    Inventor: Jeffrey L. Milner
  • Patent number: 11053170
    Abstract: The present application generally relates to a method for the manufacture of a liquid composition essentially consisting of an organic solvent of the type glycol and a urease inhibitor of the type phosphoric triamide and products obtained therewith.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 6, 2021
    Assignee: YARA INTERNATIONAL ASA
    Inventors: Filip Colpaert, Francois Ledoux, Ruud Van Belzen
  • Patent number: 10612601
    Abstract: The invention provides a grease composition for constant velocity joints, which contains (a) a base oil, (b) a diurea thickener, (c) benzotriazole and/or a derivative thereof, and (d) a phosphate and/or an amine salt thereof; and a constant velocity joint where the grease composition is packed.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: April 7, 2020
    Assignees: KYODO YUSHI CO., LTD., NTN CORPORATION
    Inventors: Michitaka Yoshihara, Yuji Onuki, Mika Kohara, Shinichi Takabe
  • Patent number: 10450529
    Abstract: Provided are a method for simultaneously and stably dispersing spherical nanoparticles in an oil medium by using layered nanosheets and an application thereof. The method comprises: (1) mixing the layered nanosheets and oil-soluble alkylamines to obtain a first mixture containing intercalated/exfoliated nano sheets; (2) mixing spherical nanoparticles and the oil medium to obtain a second mixture; and (3) mixing the first mixture, the second mixture and the oil medium to obtain a third mixture.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 22, 2019
    Assignee: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Huaisong Yong, Dazhi Sun
  • Patent number: 9265256
    Abstract: The present invention provides a pest control composition having an excellent controlling effect on pests, which comprises a combination of an ester compound represented by the formula (1): and a cyclic compound represented by the formula (2a) and/or a cyclic compound represented by the formula (2b).
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 23, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiro Yamada, Yoshito Tanaka
  • Patent number: 8951719
    Abstract: The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: February 10, 2015
    Assignee: Gentegra, LLC.
    Inventors: Michael Hogan, Michael Saghbini, David Wong, Chunnian Shi
  • Publication number: 20140194559
    Abstract: The invention concerns a formulation and method which allow for the efficient delivery of antipolymerants of low solubility into processes for the production of ethylenically unsaturated monomers, and associated process streams, and which avoid the potential health and safety problems and economic disadvantages which are associated with the methods of the prior art and facilitate the safe and efficient production of these monomers. Specifically, the invention provides an antipolymerant composition for the prevention of unwanted polymerisation reactions during the production and processing of ethylenically unsaturated compounds, the composition comprising a concentrated liquid formulation, wherein said concentrated liquid formulation is a suspension concentrate which comprises: (a) at least one compound selected from the group comprising phenols, quinones, thiazines, hydroxylamines and aromatic amines; (b) at least one dispersing agent; and (c) at least one polar or non-polar liquid carrier.
    Type: Application
    Filed: August 20, 2012
    Publication date: July 10, 2014
    Applicant: NuFarm UK Limited
    Inventors: Peter Price, Guillaume Duchamp, Angela Jane Glossop, Andrew Nigel Fawbert, Stephanie Mary Dwyer
  • Publication number: 20140014880
    Abstract: A sterically hindered phenol and phosphite based compound represented the following formula: and its use as an antioxidant in a wide range of materials including, but not limited to, food, plastics, elastomers, composites and petroleum based products is disclosed herein.
    Type: Application
    Filed: May 29, 2013
    Publication date: January 16, 2014
    Applicant: Polnox Corporation
    Inventors: Ashok L. Cholli, Rajesh Kumar
  • Patent number: 8628690
    Abstract: A nanoemulsion composition having enhanced oxidative stability, emulsion stability, and health benefits. The composition may include individual ingredients or a synergistic blend of non-reducing sugars, sugar polyols, medium-chain triglycerides, polysaccharides, polyphenols, phospholipids, chitosan, and alpha-casein, beta-casein, kappa-casein or protein fragments, glycopeptides, phosphopeptides. The composition may optionally be further utilized for the prevention of hypercholesterolemia or bone (and teeth) mineral loss.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: January 14, 2014
    Assignee: The Texas A&M University System
    Inventors: Adela Mora-Gutierrez, Michael H Gurin
  • 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: 20120308987
    Abstract: The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 6, 2012
    Applicant: GenVault Corporation
    Inventors: Michael HOGAN, Michael SAGHBINI, Chunnian SHI, David WONG
  • Patent number: 8303851
    Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: November 6, 2012
    Assignee: Great Lakes Chemical (Europe) GmbH
    Inventors: Carlo Neri, Corrado Callierotti
  • Publication number: 20120171685
    Abstract: Provided herein are buffers for the stabilization of nucleic acid molecules. The buffers find particular use for the stabilization of trace amounts of nucleic acid molecules in a variety of environments, including repeated freeze/thaw cycles. For example, in some embodiments, provided herein are compositions comprising tris(hydroxymethyl)aminomethane (Tris), ethylenediaminetetraacetic acid (EDTA), polyadenylic acid, and a synthetic DNA oligonucleotide.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 5, 2012
    Applicant: Ibis Biosciences, Inc.
    Inventors: Mark W. Eshoo, David D. Duncan
  • Publication number: 20120052572
    Abstract: Compositions and methods are disclosed for substantially liquid, gel, suspension, slurry, semisolid and/or colloid storage of biological samples following admixture with the herein disclosed storage composition, permitting substantial recovery of biological activity following storage without refrigeration. In certain embodiments, unfractionated blood or tissue samples may be stored without refrigeration for weeks, months or years in a form that permits recovery of intact DNA, RNA or protein components following the storage period.
    Type: Application
    Filed: July 26, 2011
    Publication date: March 1, 2012
    Inventors: Scott E. Whitney, Steven Wilkinson, Rolf Muller
  • Publication number: 20110233474
    Abstract: The invention relates to a liquid composition containing phosphoric or thiophosphoric triamide derivatives and suitable solvents selected from the group comprising esters of hydroxyacids, heterocyclic alcohols and their derivatives, cyclic carbonic acid esters and dicarboxyacid esters, optionally the composition may also contain glycol ethers and auxiliary substances. The invention further includes the use of this liquid composition as urease inhibitor in urea-containing fertilizers, in fertilizers and wastes of animal origin or in sprays masking animal urine odours.
    Type: Application
    Filed: December 21, 2009
    Publication date: September 29, 2011
    Inventor: Petr Cigler
  • 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: 7780873
    Abstract: A bioactive complex composition having enhanced oxidative stability, emulsion stability, mineral rich transparent beverages and a wide range of functional health benefits. The composition may include as a base composition individual ingredients or a synergistic blend of mineral salts, Omega-3 rich oils, phospholipids, chitosan, and alpha-casein, beta-casein, kappa-casein or protein fragments, glycopeptides, phosphopeptides. The composition may optionally be further utilized for the prevention of hypercholesterolemia, bone (and teeth) mineral loss, treatment of mental health diseases, heart health, additional nutritional supplementation, and treatment of additional medical conditions.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: August 24, 2010
    Assignee: Texas A&M University System
    Inventors: Adela Mora-Gutierrez, Michael H. Gurin
  • Patent number: 7709571
    Abstract: Lubricant compositions and processes for producing such lubricant compositions. More specifically, low viscosity lubricant compositions for the working surface of an extrusion die during the processing of plastics that require lubricants to render them processable, such as polyvinyl chloride, chlorinated polyvinyl chloride, polyvinylidene chloride and copolymers thereof. The lubricant composition may include up to about 70% by weight of at least one metal salt while maintaining a melt viscosity low enough to process on conventional finishing equipment such as prill towers or pastillating equipment.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: May 4, 2010
    Assignee: Honeywell International Inc
    Inventor: Francis Sim
  • Publication number: 20100105585
    Abstract: An additive package, lubricant formulation with the additive package and method of improving gear lubricant properties with the additive package are disclosed. The additive package comprises at least one antiwear additive, at least one antioxidant additive, at least one rust inhibitor additive, at least one metal passivator additive, at least one defoamant additive wherein the composition has less than 3.5% phosphorous, less than 1.7% ppm nitrogen, less than 1000 ppm sulfur, less than 100 ppm metals and a TAN of less than 30.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Inventors: James T. Carey, Angela S. Galiano-Roth, Margaret M. Wu, Heather M. Haigh
  • Publication number: 20080099730
    Abstract: Lubricant compositions and processes for producing such lubricant compositions. More specifically, low viscosity lubricant compositions for the working surface of an extrusion die during the processing of plastics that require lubricants to render them processable, such as polyvinyl chloride, chlorinated polyvinyl chloride, polyvinylidene chloride and copolymers thereof. The lubricant composition may include up to about 70% by weight of at least one metal salt while maintaining a melt viscosity low enough to process on conventional finishing equipment such as prill towers or pastillating equipment.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 1, 2008
    Inventor: Francis Sim
  • Patent number: 7255813
    Abstract: The invention relates to a compound containing at least one health promoting isolated antioxidant A having a redox potential of less than 180 mV and at least one stabilising antioxidant B which has a standard redox potential which is less than the standard redox potential of the antioxidant A. The use of the inventive compound and method for the production thereof are also disclosed.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: August 14, 2007
    Assignee: Nutropia Ernahrungsmedizinische Forschungs GmbH
    Inventors: Behzad Sadeghi, Peter Kössler, Norbert Fuchs
  • Patent number: 7118688
    Abstract: An antioxidant composition having enhanced oxidative stability, emulsion stability, and health benefits. The composition may include individual ingredients or a synergistic blend of non-reducing sugars, sugar polyols, medium-chain triglycerides, polysaccharides, polyphenols, phospholipids, chitosan, and alpha-casein, beta-casein, kappa-casein or protein fragments, glycopeptides, phosphopeptides. The composition may optionally be further utilized for the prevention of hypercholesterolemia or bone mineral loss.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: October 10, 2006
    Assignee: The Texas A&M University System
    Inventors: Adela Mora-Gutierrez, Michael H. Gurin
  • Patent number: 7077981
    Abstract: The invention relates to stabilizer systems, containing at least: a) a perchlorate salt; b) at least one or more compounds from the group consisting of carbamides, indole derivatives and enamines of formula (I), wherein n=1 or 2 and X=O or NR1; n=3–6 and X=O; R1=H, C1–C4-alkyl, C2–C6-alkenyl, C6–C10-aryl, C7–C18-alkaryl or C7–C18-aralkyl; R2 (if n=1)=C1–C22-alkyl, C2–C22-alkenyl or aryl, preferably phenyl, optionally substituted with up to 3 hydroxy, C1–C4-alkoxy or C1–C9-alkyl; or R2 (if n=2–6)=linear or branched C1-22-alkylene, optionally interrupted by one or more O or S atoms, wherein R2 (if n=3) can also be a C2–C3-alkyl trisubstituted isocyanurate; if X=NH R2 can also be H. Said stabilizer systems are suitable for stabilizing halogen-containing polymers, more particularly PVC.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: July 18, 2006
    Assignee: Crompton Vinyl Additives GmbH
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Patent number: 6913712
    Abstract: Mixtures of compounds comprising a compound G2 and at least one further compound from the group G0, G1, G3, G4, G5, G6, the compounds G0-G6 corresponding to formula (I) in which, in the compound G0, the radicals R1, R2, R3, R4, R5 and R6 are each hydrogen; G1, the radical R1 is Q and R2, R3, R4, R5 and R6 are each hydrogen; G2, the radicals R1 and R2 independently of one another are each Q and R3, R4, R5 and R6 are each hydrogen; G3 the radicals R1, R2 and R3 independently of one another are each Q and R4, R5 and R6 are each hydrogen; G4, the radicals R1, R2, R3 and R4 independently of one another are each Q and R5 and R6 are each hydrogen; G5, the radicals R1, R2, R3, R4 and R5 independently of one another are each Q and R6 is hydrogen; G6, the radicals R1, R2, R3, R4, R5 and R6 independently of one another are each Q; and Q and the other symbols are as defined in claim 1, are effective as stabilizers for organic material with respect to damaging exposure to light, oxygen and/or heat.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: July 5, 2005
    Assignee: CIBA Specialty Chemicals Corp.
    Inventor: Pascal Hayoz
  • Publication number: 20040183053
    Abstract: This invention relates to a process for the preparation of an addition salt of at least one hindered amine light stabilizer and at least one acidic phosphorus containing compound. The process comprises the step of combining at least one hindered amine light stabilizer and an acidic phosphorus containing compound so that an addition salt is formed as an isolatable solid.
    Type: Application
    Filed: March 20, 2003
    Publication date: September 23, 2004
    Inventors: Jason Clay Pearson, Gether Irick, Greg Alan King, John Peter Mykytka, Max Allen Weaver
  • 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: 6726854
    Abstract: An inhibitor mixture containing, as components, a) at least one nitroxyl radical (derivative), b) at least one phenol (derivative) and c) at least one chemical compound which contains at least one phosphorus atom which has the oxidation state +3 is preferably used for stabilizing compounds capable of free radical polymerization.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Friedrich Sutoris, Gerhard Wagenblast, Volker Schliephake, Jürgen Schröder, Harald Keller, Thomas Jaworek
  • Patent number: 6706214
    Abstract: A composition and process for inhibiting the corrosion of metallic substrates is revealed. The process utilizes an aqueous treatment solution comprising chitosan which has been reacted with an additive selected from the group consisting of phosphorus-containing compounds and sulfur-containing compounds and mixtures thereof. More preferably, the phosphorus-containing compound is a phosphonic acid and the sulfur-containing compound is a mercapto, thio, or thienyl containing compound or a mercapto functional silane. The composition and process are particularly useful in providing corrosion protection for aluminum and aluminum alloys.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 16, 2004
    Inventor: Gerald Wojcik
  • Patent number: 6689825
    Abstract: A thermoplastic resin composition with improved flame retardance, flow and heat deflection temperature includes a thermoplastic resin; resorcinol diphenyl phosphate; and an additive blend. The additive blend includes a combination of melamine polyphosphate and ferrocene. The thermoplastic composition reduces the amounts of resorcinol diphenyl phosphate required for effective flame retardancy. Moreover, the effective amounts of melamine polyphosphate and ferrocene do not deleteriously affect other properties of the thermoplastic composition such as Izod strength, flow properties, and heat deflection temperatures. A process for manufacturing a thermoplastic composition is also disclosed.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: February 10, 2004
    Assignee: General Electric Company
    Inventors: Chandra S. Bajgur, William Pecak, Radhakrishna Arakali
  • Patent number: 6660696
    Abstract: Phosphorothionate derivatives derived from cashew nut shell liquid (CNSL) for use as an thermally stable antioxidant, antiwear, friction reducing and extreme pressure additive in a lubricant composition are synthesized by the steps of (a) partially hydrogenating distilled technical cashew nut shell liquid with palladium or nickel or platinum catalyst; to hydrogenate the olefinic chain; (b) reacting partially hydrogenated technical cashew nut shell liquid with phosphorus trihalide and sulphur, the reaction being carried out at a temperature ranging from 20 to 220° C. A lubricant containing a major proportion of a material selected from the group consisting of an oil of lubricating viscosity or a grease; and remainder an additive including CNSL phosphorothionate derivative, prepared by the foregoing process.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: December 9, 2003
    Assignee: Indian Oil Corporation Limited
    Inventors: Rajeev Ranjan, Ajay Kumar Arora, Rakesh Sarin, Deepak Kumar Tuli, Ram Prakash Verma, Akhilesh Kumar Bhatnagar
  • Publication number: 20030189192
    Abstract: Stablizing mixtures for organic polymers comprising: (a) at least one compound belonging to the group of 3-pyrazolidinones; (b) at least one compound belonging to the group of organic phosphites or phosphonites; (c) at least one compound belonging to the group of sterically hindered phenols; and, optionally, (d) at least one compound belonging to the group of sterically hindered amines. The above mixtures can be used as stabilizers of organic polymers to degradation caused by oxygen, heat and/or light.
    Type: Application
    Filed: February 4, 2003
    Publication date: October 9, 2003
    Inventors: Daniele Girelli, Fabjo Broussard, Vincenzo Malatesta
  • Patent number: 6508958
    Abstract: A composition and process for inhibiting the corrosion of metallic substrates is revealed. The process utilizes an aqueous treatment solution comprising chitosan which has been reacted with an acid selected from the group consisting of phosphonic acids, carboxylic acids and mixtures thereof. The composition and process are particularly useful in providing corrosion protection for aluminum and aluminum alloys.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: January 21, 2003
    Inventor: Gerald Wojcik
  • Patent number: 6458956
    Abstract: An inhibitor mixture containing, as components, a) at least one nitroxyl radical (derivative), b) at least one phenol (derivative) and c) at least one chemical compound which contains at least one phosphorus atom which has the oxidation state +3 is preferably used for stabilizing compounds capable of free radical polymerization.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: October 1, 2002
    Assignee: BAF Aktiengesellschaft
    Inventors: Heinz Friedrich Sutoris, Gerhard Wagenblast, Volker Schliephake, Jürgen Schröder, Harald Keller, Thomas Jaworek
  • Patent number: 6383414
    Abstract: A process of inhibiting a corrosion of metal plugs formed in integrated circuits is described. The corrosion inhibiting process includes providing a partially fabricated integrated circuit surface including the metal plugs on a polishing pad to carry out chemical-mechanical polishing, introducing slurry including a corrosion inhibiting compound on the polishing pad in sufficient concentration to inhibit corrosion of the metal plugs of the partially fabricated integrated circuit surface, and polishing the partially fabricated integrated circuit surface.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: May 7, 2002
    Assignee: LSI Logic Corporation
    Inventor: Nicholas F. Pasch
  • Patent number: 6225385
    Abstract: The present invention relates to a stabilizer mixture prepared by partially condensing PCl3 with 2,2′-dimethyl-4,4′-dihydroxy-5,5′-di-tert-butyldiphenyl sulfide, where the phosphorus content is from 2 to 4% by weight and the content of 2,2′-dimethyl-4,4′-dihydroxy-5,5′-di-tert-butyldiphenyl sulfide is from 0.5 to 50% by weight. The stabilizer mixture has very good solubility in organic solvents and in the polymer and has very good stabilizing action.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: May 1, 2001
    Assignee: Clariant GmbH
    Inventors: Thomas Stährfeldt, Alexander Lichtblau, Gerhard Pfahler, Karl Gaa