Phenol Or Quinone Radical Containing Patents (Class 252/393)
  • Patent number: 5143943
    Abstract: Polyether polyols and polyurethane foams are stabilized by including therein a liquid stabilizer composition of (a) 2,6-di-tert-butyl-4-sec-butylphenol, (b) a reaction product of diisobutylene, styrene and diphenylamine and (c) phenothiazine or C.sub.9-26 -alkyl substituted phenothiazine and wherein the ratio of the phenol to the reaction product is about 1:5 to 5:1 and the ratio of the mixture of components (a) and (b) to the phenothiazine compound is about 5.0:0.1 to 4.0:1.0. The stabilizer composition may further contain trihydrocarbyl phosphite to stabilize the color of same.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: September 1, 1992
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Richard A. Suhoza, Bruce R. Garney, Robert B. Lauder
  • Patent number: 5094814
    Abstract: A combination product containing (a) dihydroxyacetone, (b) hydroquinone, and (c) a volatile amine that is capable of removing oxygen and neutralizing carbon dioxide in industrial waters, particularly boiler waters, including boiler feed waters, internal boiling waters, condensate waters, and return waters. The combination product preferably contains weight ratios of ingredients (a):(b):(c) ranging from 1:0.01:0.1 to about 1:1:100, and may additionally contain a filming amine.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: March 10, 1992
    Assignee: Nalco Chemical Company
    Inventors: Cynthia A. Soderquist, Mei-Jan L. Lin
  • Patent number: 5084210
    Abstract: A corrosion inhibitor including an acetylinic alcohol is disclosed which is used in connection with a chlorine dioxide process for controlling biomass and cleaning water injection wells and oil producing wells by injecting the chlorine dioxide oxidant into the pumped water injection stream.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: January 28, 1992
    Assignee: Chemlink Incorporated
    Inventor: Susan M. Teeters
  • Patent number: 5022926
    Abstract: A method of removing iron contaminants in an aqueous system by introducing and maintaining within the system at least one ortho dihydroxyaromatic compound having at least one electron withdrawing group pendant from the aromatic ring and, further, a method of inhibiting calcium scale formation in the presence of iron contaminants by utilizing at least one dehydroxyaromatic compound in combination with calcium scale inhibitors.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: June 11, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert P. Kreh, Joseph T. Lundquist, Wayne L. Henry, John A. Kelly, Vincent R. Kuhn
  • Patent number: 4935205
    Abstract: A method of inhibiting corrosion of iron or iron-based alloys which are in contact with an aqueous system by introducing and maintaining within the system at least one ortho dihydroxyaromatic compound having at least one electron withdrawing group pendant from the aromatic ring.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 19, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert P. Kreh, Joseph T. Lundquist, Wayne L. Henry
  • Patent number: 4929364
    Abstract: An aqueous concentrate useful for treating boiler waters to scavenge oxygen therefrom which contains at least 0.3% by weight of either gallic acid or propyl gallate. This aqueous concentrate has a pH adjusted to at least 8.5 by a water-soluble neutralizing amine of the type used to treat boiler waters. Additionally, a method for treating boiler waters with an oxygen scavenger.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: May 29, 1990
    Assignee: Nalco Chemical Company
    Inventors: Patricia A. Reardon, David A. Grattan
  • Patent number: 4895703
    Abstract: A method for inhibiting corrosion due to dissolved oxygen wherein trihydroxybenzene compounds, alone or in combination with conventional oxygen scavengers, preferably hydroquinone, are added to boiler water to prevent corrosion by reducing dissolved oxygen levels in boiler feedwater.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: January 23, 1990
    Assignee: Calgon Corporation
    Inventors: John D. Zupanovich, Lois J. Neil, Dennis J. Sepelak
  • Patent number: 4888132
    Abstract: An aqueous rust inhibitor containing a soap of a hydroxyaryl fatty acid and an alkali metal. The inhibitor exhibits good rust inhibiting effects without emitting any malodor.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: December 19, 1989
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Hitoshi Kohashi, Nobuhiko Shizuka, Yoshihito Kadoma
  • Patent number: 4882413
    Abstract: A novel class of polymers and processes used in their preparation are described. The polymers are produced by a reaction between polyfunctional amines and quinones. Some are infusible and intractable. Others are eminently suitable for the production of coatings, adhesives, insulators, etc. Some polymers, in solution in appropriate solvents adhere to metals, siliceous materials, composites with sufficient affinity to displace water. The polymers can be cured by heat or chemicals to an impervious and insoluble material that is not wetted by water.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: November 21, 1989
    Inventor: Semih Erhan
  • Patent number: 4846985
    Abstract: A composition is disclosed which comprises:(A) a compound represented by the formula ##STR1## wherein Ar.sup.1 and Ar.sup.2 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or hydrocarbyl groups of from 1 to about 25 carbon atoms; X is at least one divalent sulfur atom, sulfone group, sulfixide group, or a mixture thereof; and n is a number ranging from 1 to about 5; and(B) a compound represented by the formula ##STR2## wherein Ar.sup.3 and Ar.sup.4 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; and R.sup.5 is hydrogen, halogen, OH, NH.sub.2, SH, NO.sub.2 or a hydrocarbyl group of from 1 to about 50 carbon atoms. Concentrates, lubricants, functional fluids, fuels, aqueous compositions and emulsions comprising the foregoing compositions are also disclosed.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: July 11, 1989
    Assignee: The Lubrizol Corporation
    Inventors: S. Q. Abbas Rizvi, Charles P. Bryant, Kent B. Grover, James N. Vinci
  • Patent number: 4830828
    Abstract: A method for inhibiting sulfide stress corrosion cracking and hydrogen induced stepwise cracking in a metal (e.g. pipeline steel) that comprises contacting the metal at a pH of 5.3 or below with an effective inhibiting amount of a glycolipid-containing product obtained from a fermentation using Torulopsis bombicola.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: May 16, 1989
    Assignee: Battelle Memorial Institute
    Inventors: Kevin W. Anderson, Henry J. Cialone
  • Patent number: 4780278
    Abstract: A hydrocarbon-soluble corrosion inhibitor composition comprising the reaction product obtained by the acid-catalyzed oligomerization of an alkylaniline and formaldehyde, wherein the alkylaniline has from 4 to 30 carbon atoms in the alkyl substituent. Also disclosed is a method of inhibiting corrosion of a corrodible metal utilizing said composition.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: October 25, 1988
    Assignee: Chevron Research Company
    Inventors: Robert Bacskai, Albert H. Schroeder
  • Patent number: 4778654
    Abstract: A hydrocarbon-soluble corrosion inhibitor composition comprising the reaction product obtained by the acid-catalyzed oligomerization of alkylaniline, formaldehyde, and an aromatic compound selected from aniline, phenol, alkylphenol and an ethoxylated alkylphenol. Also disclosed is a method of inhibiting corrosion of a corrodible metal utilizing said composition.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: October 18, 1988
    Assignee: Chevron Research Company
    Inventors: Robert Bacskai, Albert H. Schroeder
  • Patent number: 4728578
    Abstract: The present invention relates to modified non-Newtonian colloidal disperse systems exhibiting improved thickening power, particularly when diluted. These compositions are useful as high-solids, thermosetting caulks, molding compositions, extruding compositions and the like, but are particularly suitable for use as high solids thermosetting coating compositions. These coating compositions are heat-stable and sag-resistant.The compositions of this invention comprise a mixture of(B) at least one non-Newtonian colloidal disperse system comprising(B-1) solid metal-containing colloidal particles,(B-2) a liquid dispersing medium, and(B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent; and(C) at least one hydrogenated block copolymer of a vinyl aromatic monomer and an aliphatic conjugated diene.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: March 1, 1988
    Assignee: The Lubrizol Corporation
    Inventors: William A. Higgins, John Bretz
  • Patent number: 4680327
    Abstract: Stabilizers consisting of (a) 2,5,7,8-tetramethyl-2-(2'-stearyloxyethyl)-chroman and (b) glyceryl stearate, glyceryl hydroxystearate, partial esters of stearic acid with condensates of glycerol and trimethylolpropane, triglyceryl stearate and/or tetraglyceryl stearate, with or without further conventional additives, the weight ratio of (a) to (b) being from 10:1 to 1:10, give improved stabilization to discoloration and superior stability during processing when used in plastics such as polyethylene or polypropylene.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: July 14, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Albert Hettche, Stefan Weiss, Hubert Trauth, Peter Lechtken, Michael Horner
  • Patent number: 4626411
    Abstract: A composition containing a hydroxylamine compound; a quinone, a dihydroxybenzene, a diaminobenzene, or an aminohydroxybenzene compound; and a neutralizing amine is an excellent oxygen scavenger and corrosion inhibitor in boiler water and other aqueous systems.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: December 2, 1986
    Assignee: Dearborn Chemical Company, Limited
    Inventors: John J. Nemes, Harvey W. Thompson, John E. Waller
  • Patent number: 4609377
    Abstract: A novel fuel composition contains ethanol or gasohol, and, as a wear-corrosion-inhibiting additive, an aminated polyisopropoxylated polyethoxylated alkylphenol ##STR1## wherein R is a (C.sub.5 -C.sub.30) alkyl, alkaryl, aralkyl, aryl, or cycloalkyl group, x is a numeral of about 5 to about 30, and y is a numeral of about 1 to about 20.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: September 2, 1986
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Wheeler C. Crawford
  • Patent number: 4599462
    Abstract: Novel composites or solid solutions made from heretofore immiscible chemical components and methods for making such composites or solid solutions. A wall of a deposition cell is cooled to a temperature within the range of about -273.degree. C. to about -20.degree. C. A solid host component and one or more guest components are vaporized and codeposited onto the cold wall of the deposition cell so as to form a solid solution. The resultant solid solutions are stable at room temperature and often at much higher temperatures. The present invention also provides methods for modifying the surface structure of solid materials.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: July 8, 1986
    Assignee: University of Utah
    Inventor: Josef Michl
  • Patent number: 4569783
    Abstract: Compositions and methods for chemically scavenging oxygen from an aqueous medium are disclosed. Salicylaldehyde catalyzed by hydroquinone can be used as an oxygen scavenger in any aqueous medium, but is especially well adapted for use in boiler water systems.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: February 11, 1986
    Assignee: Betz Laboratories, Inc.
    Inventor: John A. Muccitelli
  • Patent number: 4549968
    Abstract: Stable oxygen scavenger compositions adapted for storage without resulting in substantial sludge formation and oxygen scavenging methods of using the compositions are disclosed. The compositions comprise hydroquinone, a compatible amine termed a mu-amine, and a member selected from the group consisting of isoascorbic acid and ascorbic acid and water soluble salt forms thereof. Methods comprise adding from about 0.05-200 ppm hydroquinone, 0.001-400 ppm mu-amine, and about 0.00025-500 ppm of isoascorbic or ascorbic acid to the desired aqueous medium.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: October 29, 1985
    Assignee: Betz Laboratories, Inc.
    Inventor: John A. Muccitelli
  • Patent number: 4541932
    Abstract: Compositions and methods for chemically scavenging oxygen from an aqueous medium are disclosed. Furfural catalyzed by hydroquinone can be used as an oxygen scavenger in any aqueous medium, but is especially well adapted for use in boiler water systems.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: September 17, 1985
    Assignee: Betz Laboratories, Inc.
    Inventor: John A. Muccitelli
  • Patent number: 4532068
    Abstract: The method for improving the initial activity of activated hydrazine is used as corrosion protection for reservoir drinking water and for the wet preservation of installation parts no longer in use. It is the object of the invention to increase the initial activity of hydrazine solutions, activated with complexes of trivalent cobalt, with respect to oxygen dissolved in water, and to develop a suitable method for the activator-rich hydrazine solution. The object is accomplished in that trivalent phenols, preferably pyrogallol, are added in small amounts to the activator-rich hydrazine solution.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: July 30, 1985
    Assignee: VEB Leuna-Werke "Walter Ulbricht"
    Inventors: Wilfried Fuchs, Horst Richter, Vendelin Kaufmann, Christina Muller, Roland Kober, Wolfgang Renker
  • Patent number: 4512909
    Abstract: Disclosed is an improved oxygen-scavenging and corrosion-inhibiting agent for fluidic systems comprising a hydroquinone compound with hydrazine (1:1 molar ratio). Also disclosed are methods for using this agent.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: April 23, 1985
    Assignee: Olin Corporation
    Inventor: Henry W. Schiessl
  • Patent number: 4487708
    Abstract: An improved oxygen scavenger for aqueous mediums is disclosed which comprises hydrazine-free solution of hydroquinone and mu-amine.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: December 11, 1984
    Assignee: Betz Laboratories, Inc.
    Inventor: John A. Muccitelli
  • Patent number: 4466902
    Abstract: A rust inhibitor comprising, as an effective component, at least one compound having the following general formulae (A), (B) and (C) ##STR1## wherein R.sub.1 and R.sub.2 are independently a hydrocarbon group having 1 to 6 carbon atoms, R.sub.3 and R.sub.4 are independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrocarbon group containing an aromatic ring and having 6 to 12 carbon atoms, R.sub.5 and R.sub.6 are independently a hydrocarbon group having 1 to 18 carbon atoms, m and n are independently 0 or an integer of 1 to 3, R.sub.3 or R.sub.4 is hydrogen in the case of m or n is 0, X is O, S, SO.sub.2, CO or a hydrocarbon group having 1 to 9 ca toxicity and is easily applicable in either a water-soluble state or an oil-soluble state.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: August 21, 1984
    Assignee: Ipposha Oil Industries, Co., Ltd.
    Inventors: Shinichi Kumagae, Tatsuo Manabe
  • Patent number: 4447477
    Abstract: In a method for the production of corrosion-inhibiting coatings on metallic surfaces, a mixture consisting of a phenol, low molecular condensation products of formaldehyde and ammonia or amines and a wetting agent, which is chemically reactive with the starting materials, is applied onto the surface to be coated and is cured under heat. The mixture is applied in the form of a solution, dispersion or powder.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: May 8, 1984
    Assignee: Battelle-Institut e.V.
    Inventors: Heinrich Deibig, Klaus Wollmann
  • Patent number: 4364846
    Abstract: A method is provided for preventing haze formation in a carburetor detergent and corrosion inhibiting fuel additive which is prepared by reacting a mole of maleic anhydride with from about 2 to 4 moles of a mixture of N-alkyl propane diamines of a specific alkyl chain distribution in the presence of from about 0.5 to 5 weight percent based on the N-alkyl propane diamine mixture of a phenolic antioxidant.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: December 21, 1982
    Assignee: Texaco Inc.
    Inventor: Benjamin J. Kaufman
  • Patent number: 4363734
    Abstract: An improved method for scavenging dissolved oxygen from alkaline waters which comprises using dihydroxy acetone catalyzed with at least 1 percent based on the weight of said dihydroxy acetone, of a catalyst from the group consisting of hydroquinone and a water-soluble compound of manganese.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: December 14, 1982
    Assignee: Nalco Chemical Company
    Inventor: Manuel Slovinsky
  • Patent number: 4321062
    Abstract: Hydrocarbyl-substituted phenylaspartates of N-primary-alkyl-alkylene diamines of the formulas: ##STR1## wherein R is a hydrocarbyl radical having from about 6 to 30 carbon atoms; R' is an alkyl or an alkenyl group having from 6 to 30 carbon atoms are provided together with a motor fuel composition containing at least one of the foregoing compounds.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: March 23, 1982
    Assignee: Texaco Inc.
    Inventors: Sheldon Herbstman, Peter Dorn
  • Patent number: 4309293
    Abstract: Sulfurized phenols, e.g., phenol sulfides, disulfides or polysulfides, oligomers thereof or mixtures of same when treated with alkyl vinyl ethers provide excellent metal anti-corrosivity characteristics without significant reduction of antioxidant, antiwear or other desired properties when incorporated into organic media such as lubricants.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: January 5, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Milton Braid
  • Patent number: 4282111
    Abstract: A method is disclosed for reducing the oxygen content of water using a hydrazine-free aqueous solution of hydroquinone.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: August 4, 1981
    Assignee: Betz Laboratories, Inc.
    Inventor: Stanley J. Ciuba
  • Patent number: 4279767
    Abstract: An improved oxygen scavenger for aqueous mediums is disclosed which comprises hydrazine-free solution of hydroquinone and mu-amine.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: July 21, 1981
    Assignee: Betz Laboratories, Inc.
    Inventor: John A. Muccitelli
  • Patent number: 4278635
    Abstract: A method for boiler water treatment to retard corrosion due to dissolved oxygen. Hydroquinone and certain related compounds are highly effective oxygen scavengers for use in boiler water and thereby effect reduction of corrosion resulting from dissolved oxygen.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: July 14, 1981
    Assignee: Chemed Corporation
    Inventor: Herman Kerst
  • Patent number: 4278555
    Abstract: Lubricating oil formulated for use in an engine crankcase having improved anticorrosion property imparted by addition of a minor amount of the combination of (A) a block-oxyalkylated trimethylol alkane containing an initial hydrophobic block of propyleneoxy and optionally random ethyleneoxy units and a terminal hydrophilic block of ethyleneoxy and optionally random propyleneoxy units and (B) an oxyethylated alkylphenol.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: July 14, 1981
    Assignee: Ethyl Corporation
    Inventors: Edward F. Zaweski, Christian S. Harstick
  • Patent number: 4269717
    Abstract: A method of removing dissolved oxygen from boiler water which comprises adding to the water an oxygen scavenging amount of carbohydrazide.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: May 26, 1981
    Assignee: Nalco Chemical Company
    Inventor: Manuel Slovinsky
  • Patent number: 4263167
    Abstract: Poly(alkylene oxide) compositions are provided which exhibit excellent resistance to oxidative degradation and inhibit the corrosion of ferrous metals, which compositions have incorporated therein a small effective amount of a bridged dimer of a hydroxyl-substituted aromatic carboxylic acid and salts thereof of the general formula: ##STR1## wherein X is a chemically stable group selected from lower alkylene, sulfonyl, and amino groups, and a sulfur atom, and Y and Y' may be the same or different, and are a hydrogen atom, hydroxyl group, amino group, alkyl group, or sulfonyl group.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: April 21, 1981
    Assignee: Union Carbide Corporation
    Inventor: Blake F. Mago
  • Patent number: 4197091
    Abstract: A composition for inhibiting the corrosion of ferrous metal pipelines used to transport petroleum hydrocarbons comprising a major portion of a mixture of C.sub.36 dicarboxylic dimer acid and a C.sub.54 trimer acid, which mixture has an acid number of at least 110 and from 0.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: April 8, 1980
    Assignee: Nalco Chemical Co.
    Inventor: Alvis B. Gainer
  • Patent number: 4169799
    Abstract: Lubricant oil comprising a hydrocarbon oil of lubricating viscosity, a highly overbased alkaline earth metal-containing alkylphenolate detergent-dispersant composition sufficient to impart a total base number to said lubricant oil of at least 10; and a chlorinated sulfurized alkylphenol.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: October 2, 1979
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Benjamin H. Zoleski
  • Patent number: 4124500
    Abstract: A process is disclosed for eliminating oxygen dissolved in water wherein there is added to the water a hydrazine solution containing, as the activator, an amount of a compound of the formula: ##STR1## WHEREIN A = 0, 1 OR 2; B = 0, 1, 2 OR 3; C = 0, 1, 2 OR 3; B + C = 2 OR 3; AND A + B + C = 3, 4 OR 5, SUFFICIENT TO INCREASE THE RATE OR REMOVAL OF SUCH OXYGEN COMPARED TO THE RATE WHEN AN AQUEOUS HYDRAZINE SOLUTION, PER SE, IS USED.The use of aqueous solutions of hydrazine to eliminate oxygen dissolved in water, such as boiler or heater water, is known.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: November 7, 1978
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Basile Arghiropoulos, Adrien P. N. Tignol
  • Patent number: 4093557
    Abstract: A process for inhibiting corrosion of metals in contact with aqueous systems is provided by maintaining in contact with metals a corrosion inhibiting composition that contains a compound containing the quinomethide group represented as follows: ##STR1##
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: June 6, 1978
    Assignee: Hercules Incorporated
    Inventor: David C. Zecher
  • Patent number: 4079018
    Abstract: Corrosion inhibiting compositions are described which contain a hydrazine compound, an organometallic complex, and, preferably, a quinone compound. The organometallic complex is the reaction product of a cobaltous or manganous hydroxide and one or more organic ligands selected from the group consisting of unsubstituted and substituted amino derivatives of carboxylic acids and salts thereof. The quinone compound is preferably added to these compositions in order to render them compatible with chelating phosphonate scale control agents. The use of these compositions as oxygen scavengers in corrosive environments is also described.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: March 14, 1978
    Assignee: Olin Corporation
    Inventor: Manfred G. Noack
  • Patent number: 4071327
    Abstract: Novel compositions, useful as additives for normally liquid fuels to impart dispersancy, anti-icing and rust inhibiting properties thereto, comprise salts of amines prepared by the Mannich reaction between a hydroxy-substituted aromatic compound, usually an alkylphenol in which the alkyl group contains at least about six carbon atoms; formaldehyde or a reversible polymer thereof; and a hydroxyalkyl-substituted amine such as diethanolamine. The acid portion of the salt is preferably derived from a carboxylic acid containing about 14-24 carbon atoms especially an aliphatic radical-substituted succinic acid or an acidic ester thereof. Epoxide adducts of such salts are useful for the same purposes.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: January 31, 1978
    Assignee: The Lubrizol Corporation
    Inventor: Casper John Dorer, Jr.
  • Patent number: 4053428
    Abstract: Hydroxy aromatic compositions containing (a) a hydroxyl group bonded directly to a carbon of an aromatic nucleus, (b) a hydrocarbon-based substituent of at least about 50 aliphatic carbon atoms bonded directly to a carbon atom of an aromatic nucleus, (c) at least one methylol or lower hydrocarbyl substituted methylol substituent bonded directly to a carbon atom of an aromatic nucleus, and not having any alkylene linkages between carbon atoms of two aromatic nuclei are useful as additives for normally liquid fuels and lubricating oils. These hydroxy aromatic compositions are also useful as intermediates for preparing other additives for fuels and lubricants. Typical hydroxy aromatic compositions of the present invention are formed by reaction of formaldehyde with an alkenyl- or alkyl-substituted phenol wherein the alkyl or alkenyl substituent contains an average of about 50 carbon atoms.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: October 11, 1977
    Assignee: The Lubrizol Corporation
    Inventors: John Francis Pindar, Jerome Martin Cohen, Charles Peterson Bryant
  • Patent number: 4028117
    Abstract: A corrosion inhibitor, particularly suitable for use in pipelines used for the transportation of hydrocarbon fluids such as crude petroleum or refined petroleum fractions, comprises a mixture of (a) from 1.8 to 25 parts by weight dimerised unsaturated fatty acid and (b) 1 part by weight of an alkoxylated alkyl phenol and provides a WSIM number (as defined) of at least 60.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: June 7, 1977
    Assignee: Edwin Cooper & Company Limited
    Inventor: Nicholas Warrington Moat
  • Patent number: 4022711
    Abstract: Corrosion inhibiting compositions are described which contain a hydrazine compound, an organometallic complex and a quinone compound. The organometallic complex is the reaction product of a cobaltous, manganous, or cupric inorganic salt and one or more ligands comprising amino derivatives of carboxylic acids or salts. The quinone compound is one which renders the composition compatible with chelating phosphonate scale control agents. The use of these compositions as oxygen scavengers in corrosive environments is also described.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: May 10, 1977
    Assignee: Olin Corporation
    Inventor: Manfred G. Noack
  • Patent number: 4022712
    Abstract: Corrosion inhibiting compositions are described which contain a hydrazine compound and an organometallic complex. The organometallic complex is the reaction product of a cobaltous, manganous, or cupric inorganic salt and one or more ligands comprising amino derivatives of carboxylic acids or salts. The use of these compositions as oxygen scavengers in corrosive environments is also described.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: May 10, 1977
    Assignee: Olin Corporation
    Inventor: Manfred G. Noack
  • Patent number: 4014814
    Abstract: A composition for use as corrosion inhibitor in circulating water streams includes a linear water-soluble, phenol-aldehyde resinous condensation product and a polyphospate, such as an alkali metal polyphosphate or a phosphorylated polyol.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: March 29, 1977
    Assignee: Hercules Incorporated
    Inventor: David C. Zecher
  • Patent number: 3965050
    Abstract: Improved process for preparing a cross-linked epichlorohydrin elastomer composition by heating an epichlorohydrin elastomer in the presence of a compound selected from the group consisting of the quinones and derivatives thereof of the following formula ##SPC1##Wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, are each a member selected from the class consisting of hydrogen and the hydrocarbon groups, and R.sub.1 and R.sub.2 taken together, may form a benzene ring.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: June 22, 1976
    Assignee: Osaka Soda Co., Ltd.
    Inventors: Sachio Shimogawa, Takashi Fujio, Mikio Arika, Nobuo Yamada, Takashi Kodama, Tetsuya Nakata
  • Patent number: 3963472
    Abstract: A soluble chromate or dichromate is incorporated in a system comprising a metal and an orthophosphate-containing liquid to inhibit corrosion of the system under highly turbulent conditions. The system in which the chromate or dichromate is incorporated is a system in which the metal surface is normally passivated against corrosion by an orthophosphate-containing film; however under the erosive conditions experienced by the system, the phosphate film is destroyed. The incorporation of the chromate or dichromate in the system prevents corrosion under such conditions. In a typical system, a chromate or dichromate is incorporated in an ammonium phosphate solution which is exposed to contact with a ferrous metal.
    Type: Grant
    Filed: June 27, 1969
    Date of Patent: June 15, 1976
    Assignee: Union Oil Company of California
    Inventor: Donald C. Young
  • Patent number: 3960758
    Abstract: A non-discoloring stabilizer system for trans-polypentenamer of:A. a sulphur-containing phenol of the formula: ##SPC1##In which R.sub.1 and R.sub.3 are alkyl groups with 1 to 8 carbon atoms, aralkyl radicals with 7 to 9 carbon atoms and cycloalkyl radicals with 5 to 7 carbon atoms, R.sub.3 represents hydrogen, alkyl groups with 1 to 8 carbon atoms, cyclohexyl, cyclohexenyl or methylcyclohexenyl, R.sub.4 represents alkyl groups with 1 to 12 carbon atoms or ##SPC2##Where R.sub.1, R.sub.2 and R.sub.3 are as defined above, andB. a phenol ester of phosphorous acid of the formula: ##SPC3##In which R.sub.5 represents an alkyl or cycloalkyl group with 5 to 10 carbon atoms, R.sub.6 and R.sub.7 are the same or different and represent hydrogen, alkyl and cycloalkyl radicals each with 1 to 7 carbon atoms.
    Type: Grant
    Filed: June 28, 1974
    Date of Patent: June 1, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Witte, Dieter Theisen, Ernst Roos, Karl Nutzel