Patents Represented by Attorney Anthony L. Cupoli

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  • Compositions for iron ore agglomeration
    Patent number: 4751259
    Abstract: The invention consists of compositions for agglomerating wetted metal-containing ores. Such such compositions are:______________________________________ General Ingredients % by Weight ______________________________________ A. A water-in-oil emulsion of a water- 10-45 soluble vinyl addition polymer which contains at least 10% by weight of the water-soluble vinyl addition polymer B. A polysaccharide 55-90 C. A water-soluble surfactant 0.001-10 D. Borax 0-15 ______________________________________Also described is the use of these compositions for agglomerating wetted metal ore-containing materials are the products produced by such an agglomeration process.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: June 14, 1988
    Assignee: Nalco Chemical Company
    Inventors: William J. Roe, Jacqueline L. Bonin, Radeakrishnan Selvarajan
  • Papermaking aid
    Patent number: 4750974
    Abstract: An improved binder for use in paper-making contains three ingredients, a cationic starch having a degree of substitution of at least 0.01, a high molecular weight anionic polymer having a molecular weight of at least 500,000 and a degree of anionic substitution of at least 0.01, and a dispersed silica having a particle size ranging from between about 1-50 nanometers.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: June 14, 1988
    Assignee: Nalco Chemical Company
    Inventor: Kerrie A. Johnson
  • Self-dispersing tin oxide sols
    Patent number: 4746459
    Abstract: An aqueous sol composition from the group consisting of antimony and tin sols useful in restoring the activity of metal contaminated molecular sieve cracking catalysts which comprises a major portion of an aqueous antimony sol or tin sol containing between 1-50% by weight of antimony oxide as Sb.sub.2 O.sub.5 or tin oxide as SnO.sub.2 and between 0.1-20% by weight of a compatable water-soluble surfactant which is capable of producing a water-in-oil emulsion and having an HLB of at least 6.0.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: May 24, 1988
    Assignee: Nalco Chemical Company
    Inventor: Morris Kaplan
  • Flotation of apatite from magnatite
    Patent number: 4744891
    Abstract: A beneficiation reagent is provided which is the half-ester reaction product of a short-chain dicarboxylic acid source, such as maleic anhydride, and a saturated, aliphatic, monohydric alcohol containing from eight to thirteen carbon atoms, preferably ten carbon atoms. This reagent is added neat to a water-slurry of iron ore concentrate in an amount of from about 0.1 to about 0.7 pounds/ton.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: May 17, 1988
    Assignee: NALCO Chemical Company
    Inventors: Radhakrishnan Selvarajan, Richard D. Christie
  • Method for preventing corrosion in aqueous systems
    Patent number: 4744949
    Abstract: A method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, comprising using a water-soluble inorganic phosphate capable of inhibiting corrosion in an aqueous alkaline environment and a co- or terpolymer of acrylic acid and certain substituted acrylamides such as t-butyl acrylamide. A water-soluble organic phosphonate capable of inhibiting corrosion in an alkaline environment may be used as an adjunct for the phosphate.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: May 17, 1988
    Assignee: Nalco Chemical Company
    Inventors: John E. Hoots, Guy A. Crucil, Ellen L. Johnson
  • N-acetoacetyl (meth)acrylamide polymers
    Patent number: 4743668
    Abstract: A vinyl polymer containing at least 1 mole percent of N-acetoacetylacrylamide monomer.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: May 10, 1988
    Assignee: Nalco Chemical Company
    Inventors: Dodd W. Fong, Jeffrey R. Cramm
  • Pumpable magnesium hydroxide slurries
    Patent number: 4743396
    Abstract: An aqueous 50% or higher by weight magnesium hydroxide slurry having a reduced Brookfield viscosity which contains from 0.1-5% by weight based on the weight of said slurry of a sulfomethylated polyacrylamide having from 2-30 mole percent of sulfomethyl groups and having a molecular weight of from 5,000-30,000.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: May 10, 1988
    Assignee: Nalco Chemical Company
    Inventors: Dodd W. Fong, Daniel V. Diep
  • Water-in-oil emulsions of amidase
    Patent number: 4742114
    Abstract: A water-in-oil emulsion, the aqueous phase of which contains Amidase. An improved method of treating water-in-oil emulsions of acrylamide polymers with Amidase to reduce the acrylamide content thereof which comprises adding the Amidase in the form of a water-in-oil emulsion.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: May 3, 1988
    Assignee: Nalco Chemical Company
    Inventors: Robert L. Wetegrove, Ralph W. Kaesler
  • Anionic polymers containing N-vinyl-2-pyrrolidone or other vinyl amides and maleic anhydride or maleic acid as scale inhibitors for preventing or reducing calcium phosphate and other scales
    Patent number: 4740314
    Abstract: A method of inhibiting scale, generally and specifically and preferably calcium phosphate and calcium carbonate scale, which is found on metal surfaces in contact with industrial cooling waters, boiler waters, oil well drilling waters, and evaporated sea water, which comprises treating the water present in such systems with a few ppm of a water-soluble maleic anhydride or acid co- or terpolymer of N-vinyl-2-pyrrolidone (NVP) or vinyl amide.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: April 26, 1988
    Assignee: Nalco Chemical Company
    Inventor: James F. Kneller
  • Scale inhibitor for intermittent washed mist eliminators in flue gas desulfurization systems
    Patent number: 4735787
    Abstract: A method of preventing scale and deposit formation on the surfaces of mist eliminators in wet scrubber flue gas desulfurization systems which utilize intermittent wash cycles which comprises coating the surfaces of these mist eliminators with a thin coating of talc.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: April 5, 1988
    Assignee: NALCO Chemical Company
    Inventors: Richard J. Mouche, Mei-Jan L. Lin, Roy A. Johnson
  • Morpholinohexose reductone as an oxygen scavenger
    Patent number: 4734258
    Abstract: An improved method for scavenging dissolved oxygen from industrial waters which comprises treating said waters with at least 1 ppb of morpholinohexose reductone.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: March 29, 1988
    Assignee: Nalco Chemical Company
    Inventor: David R. Cosper
  • Copper chelants/dispersants and their applications for boiler internal treatment
    Patent number: 4734203
    Abstract: This invention discloses a method of improving the constitution of boiler water by adding thereto an effective amount of a copper transport agent which is either rubeanic acid or a low molecular weight polymer of polypiperazine methyl-para-hydroxysulfonic acid or polypiperazine methyl-para-hydroxybenzoic acid. The copper transport agent satisfactorily separates the copper from iron, calcium, magnesium and other heavy metals with a high degree of selectivity. The chelant may be added in a ratio of 100/1 to 10/1 chelant/copper and an advantageous ratio in the case of the polymer is 50/1 ppm active polymer to 1 ppm Cu. The chelants, which form a soluble chelate with Cu, is capable of removing Cu through boiler blowdown in an operating, layup or cleanup boiler. This adds an anti-corrosion factor to the galvanized boiler corrosion.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: March 29, 1988
    Assignee: Nalco Chemical Company
    Inventors: Mei-Jan L. Lin, Frederick J. Sibert
  • Stabilization of aqueous alkali metal aluminate solutions
    Patent number: 4734274
    Abstract: A method of stabilizing an aqueous solution of alkali metal aluminate comprises admixing an aqueous solution of alkali metal aluminate having a pH of at least 10 with a sufficient amount of carboxylate-containing vinyl polymer to form a solution containing fron 0.1 to 2.0 weight percent of an anionic vinyl polymer based on alkali metal aluminate solids, and a stabilized aqueous alkali metal aluminate solution.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: March 29, 1988
    Assignee: Nalco Chemical Company
    Inventor: Stephen J. Allenson
  • Water-soluble cationic quaternary ammonium monomers
    Patent number: 4734473
    Abstract: The methyl chloride or dimethyl sulfate quaternary ammonium salt of 1-methacryloyl-4-methyl piperazine.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: March 29, 1988
    Assignee: Nalco Chemical Company
    Inventors: Dodd W. Fong, David J. Kowalski
  • Viscosity/drag reducing additive for high solids black liquor
    Patent number: 4734103
    Abstract: A high solids black liquor having the property of reduced turbulent flow/drag comprising a high solids black liquor which contains a few parts per million of a water soluble terpolymer containing the repeating units in the following mole percentages: ##STR1## wherein R is a lower alkyl group from 1-6 carbon atoms, M is H or alkali metal, said terpolymer having a Reduced Specific Viscosity of at least 25.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: March 29, 1988
    Assignee: Nalco Chemical Company
    Inventors: Dodd W. Fong, Daniel V. Diep, Ralph W. Kaesler
  • Alkoxylated/cationically modified amide-containing polymers
    Patent number: 4731419
    Abstract: Pendant amide-containing polymers may be modified in such a way to achieve substituted pendant amide groups described by the structure: ##STR1## wherein: R is chosen from the group consisting of hydrogen and lower alkyl (C.sub.1 -C.sub.4) groups,R.sup.1 is a multivalent hydrocarbonaceous bridging group containing from 1-20 carbon atoms,X is a tertiary amine or a quaternary ammonium salt functional group,Y is chosen from the group consisting of --OR"', and ##STR2## and mixtures thereof, and whereinR"' is chosen from the group consisting of hydrogen, alkyl groups, aryl alkyl, aryl groups and the like,q ranges from 0-50,m ranges from 0-24,n ranges from 0-24, provided that the sum of m plus n is at least 1.Processes for achieving modified polymers having the above functional group is also disclosed.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: March 15, 1988
    Assignee: Nalco Chemical Company
    Inventor: Dodd W. Fong
  • Anionic polymers containing 3-acrylamido-3-methylbutanoic acid as scale inhibitors for preventing or reducing calcium phosphate and other scales
    Patent number: 4728436
    Abstract: A method for preventing calcium phosphate and calcium carbonate scales in industrial cooling waters which comprises treating such waters with a few parts per million of a water-soluble acrylic acid copolymer which contains from 10-80 mole percent of 3-acrylamido-3-methyl butanoic acid, said polymer having a molecular weight within the range of 5-100,000.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: March 1, 1988
    Assignee: Nalco Chemical Company
    Inventors: James F. Kneller, Donald A. Johnson
  • Vinyl sulfonic acid - methacrylic acid copolymer passivators for high pressure boilers
    Patent number: 4719082
    Abstract: Certain polymers of vinylsulfonic and methacrylic acid promote the formation of passive, protective oxide films on steel surfaces under alkaline boiler conditions and at high pressures e.g. pH 11 1,000 to 1,500 psi, while giving good control of mineral deposition in the boiler.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: January 12, 1988
    Assignee: Nalco Chemical Company
    Inventor: Robert S. Robinson
  • Ampholytic diallyldimethyl ammonium chloride (DADMAC) copolymers and terpolymers for water clarification
    Patent number: 4715962
    Abstract: A method of removing impurities from water which comprises treating these impurity-containing waters with a few parts per million of a water-soluble polymer containing a major portion of Diallyldimethyl Ammonium Chloride and ether.A. from 5 to 25 mole percent of either acrylic acid or methacrylic acid, or,B. from 5 to 25 mole percent of either acrylic acid or methacrylic acid and from 1-10 percent of a hydroxy C.sub.2 -C.sub.6 alkyl acrylate or methacrylate:which polymer is characterized as having an intrinsic viscosity of at least 0.5.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: December 29, 1987
    Assignee: Nalco Chemical Company
    Inventors: Bhupati R. Bhattacharyya, Sanjay R. Srivatsa, Michael L. Dwyer
  • High molecular weight DADMAC polymers by inverse emulsion technology
    Patent number: 4713431
    Abstract: High molecular weight DADMAC polymers are produced by polymerizing an inverse latex of DADMAC with 0.5 to 3 weight percent acrylamide. The polymerization uses a low HLB emulsifier and a free radical initiator.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: December 15, 1987
    Assignee: Nalco Chemical Company
    Inventors: Bhupati R. Bhattacharyya, Philip D. Dalsin