Patents Represented by Attorney Anthony L. Cupoli

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  • Calcium tolerant deflocculant for drilling fluids
    Patent number: 4770795
    Abstract: A high calcium containing drilling fluid having a 0.1-10 pounds per barrel of a deflocculant which is a water-soluble acrylic polymer which contains from 5-50 mole percent of one or more of the following:Sulfoethyl acrylamide; orAcrylamide and Sulfoethyl acrylamide; orEthyl acrylate and Sulfoethyl acrylamide; orAcrylamide and Sulfophenyl acrylamide; orAcrylamide and Sulfomethyl acrylamide.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: September 13, 1988
    Assignee: Nalco Chemical Company
    Inventors: David M. Giddings, Dodd W. Fong
  • Compositions for suspending solid particles in aqueous media
    Patent number: 4771094
    Abstract: A stable aqueous slurry of particles which comprises:______________________________________ Ingredient % by weight ______________________________________ water 40-60 oil-in-water emulsion 10-30 acrylic acid polymer having a .1-1 MW greater than 1,000,000 suspended particles 2-50 ______________________________________ .
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: September 13, 1988
    Assignee: Nalco Chemical Company
    Inventor: John A. Romberger
  • Turbidity reduction
    Patent number: 4769155
    Abstract: A process for reducing turbidity in turbid waters which comprises adding to said waters a composition consisting essentially of an aqueous solution of:(a) calcium chloride and(b) a water soluble organic positively charged polymeric coagulant having an average molecular weight of at least 2000 selected from the group consisting of polydiallyl dimethylammonium chloride polymer and dimethylamine epichlorohydrin ethylenediaminethe weight of (a) to (b) being within the range of 0.75:1 to 4:1.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: September 6, 1988
    Assignee: Nalco Chemical Company
    Inventor: Michael L. Dwyer
  • Water-soluble quaternary cationic monomers
    Patent number: 4769432
    Abstract: The methyl chloride or dimethyl sulfate quaternary ammonium salt of 1-acryloyl-4-methyl piperazine and polymers thereof.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: September 6, 1988
    Assignee: Nalco Chemical Company
    Inventor: Dodd W. Fong
  • Polycarboxylic acid ester drawing and ironing lubricant emulsions and concentrates
    Patent number: 4767554
    Abstract: A concentrate of the type useful for preparing an oil-in-water emulsion lubricant used in the drawing and ironing of ferrous and non-ferrous metals comprising:______________________________________ Ingredient % by Weight ______________________________________ A carboxylic acid ester from the 60-90 group consisting of: (a) Dibasic acid having at least 70% by weight of its carboxylic acid groups esterified with a C.sub.4 -C.sub.30 mohydric alcohol (b) A C.sub.8 -C.sub.22 mono carboxylic acid ester of a polyhydric alcohol. Water-in-oil emulsifying agent, .5-30 Polyglycol co-emulsifier 2-4 Phosphate corrosion inhibitor 0.5-2 Copper corrosion inhibitor 0.2-1 Thickener 0-10 ______________________________________the improvement which comprises said composition having an Iodine number not greater than 5.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: August 30, 1988
    Assignee: Nalco Chemical Company
    Inventors: John T. Malito, Richard D. Wintermute, Scott F. Ross, John M. Ferrara
  • Method for reducing residual acrylic acid in acrylic acid polymer gels
    Patent number: 4766173
    Abstract: A method for reducing the residual acrylic acid present in water-insoluble polyacrylic acid water absorbent gel polymers which comprises treating these polymers with at least 0.5 mole of either amino acid cysteine or lysine per mole of acrylic acid present in said waters for at least 15 minutes at a temperature of at least 80.degree. C.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: August 23, 1988
    Assignee: Nalco Chemical Company
    Inventors: Kristy M. Bailey, Patrick J. Marek
  • Melamine-formaldehyde/styrene-acrylate paint detackification composition
    Patent number: 4764561
    Abstract: A paint spray booth detackifying composition which includes mixtures of styrene-acrylate polymer and a melamine-formaldehyde polymer and the method of using same.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: August 16, 1988
    Assignee: Nalco Chemical Company
    Inventors: Charles R. Kiss, Shu-Jen W. Huang
  • Sulfomethylamide-containing polymers
    Patent number: 4762894
    Abstract: Polyacrylamide is reacted with formaldehyde and bisulfite at a temperature of at least about 100.degree. C. and at an initial reaction mixture pH of less than about 12, preferably about 3 to about 8, to produce sulfomethylpolyacrylamide.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: August 9, 1988
    Assignee: Nalco Chemical Company
    Inventors: Dodd W. Fong, David J. Kowalski
  • Hydroxyethylacrylate/acrylate copolymers as zinc sulfide scale inhibitors
    Patent number: 4762626
    Abstract: The utilization of hydroxyethylacrylate/acrylic acid copolymer as a zinc sulfide scale inhibitor in oil well production processes.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: August 9, 1988
    Assignee: Nalco Chemical Company
    Inventors: Daniel Emmons, Gary R. Chesnut
  • Use of sulfamic acid to inhibit phosphonate decomposition by chlorine-bromine mixtures
    Patent number: 4759852
    Abstract: The decomposition of phosphonates by chlorine-bromine solutions present in industrial process waters can be diminished or prevented by treating such waters with sulfamic acid.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: July 26, 1988
    Assignee: Nalco Chemical Company
    Inventor: Michael G. Trulear
  • Removal of heavy metals from waste streams
    Patent number: 4758353
    Abstract: Heavy metals are removed from effluent waters using the sequential steps comprising:A. Adding a surfactant;B. pH adjustment;C. Adding a cationic coagulant;D. Adding a flocculant; and,E. Recovering the floc formed by the flocculant.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: July 19, 1988
    Assignee: Nalco Chemical Company
    Inventors: Michael D. Spence, John M. Kozaruk, Mark Melvin, Stephen M. Gardocki
  • Method for in situ corrosion detection using electrochemically active compounds
    Patent number: 4758312
    Abstract: The invention comprises a method for determining the corrosion rate of metals in contact with a liquid system which is capable of causing corrosion of such metals which comprises adding to the liquid system an electrochemically active compound having a reduction potential more positive than the metal in contact with the liquid system and then monitoring the system thus treated with the electrochemically active compound to determine its rate of reduction which is proportional to the corrosion rate of the metal.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: July 19, 1988
    Assignee: Nalco Chemical Company
    Inventors: Barry E. Hunt, Harvey M. Herro, Kyu-Hwa Lee, Morris Mindick
  • Process for preparing naphthenic acid 1,2-imidazolines
    Patent number: 4758672
    Abstract: 1,2-imidazolines are prepared by reacting gas oils containing naphthenic acid with polyamines. This reaction, in addition to forming imidazolines, reduces the acidity of the starting gas oils.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: July 19, 1988
    Assignee: Nalco Chemical Company
    Inventors: Sam Ferguson, Darrel D. Reese
  • Composition of corrosion inhibitors for cooling water systems using chemically modified acrylamide or methacrylamide polymers
    Patent number: 4756881
    Abstract: A composition and method for inhibiting corrosion in industrial cooling waters which contain hardness and have a pH of at least 8, which composition comprises a water-soluble organic phosphonate capable of inhibiting corrosion in an aqueous alkaliine environment and a hydrocarbon polymer containing an N-substituted acrylamide polymer with an amide structure as follows: ##STR1## where R.sub.2 is hydrogen or methyl, R.sub.1 is a hydrogen or an alkyl and R is alkylene or phenylene, and X is sulfonate, (poly)hydroxyl, and combinations thereof.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: July 12, 1988
    Assignee: Nalco Chemical Company
    Inventors: John E. Hoots, Donald A. Johnson, Dodd W. Fong
  • Hot melt metalworking lubricant
    Patent number: 4753743
    Abstract: Metalworking applications are provided with a lubricant comprised of at least one substantially saturated ester formed of a polyhydric alcohol and at least one carboxylic acid, from 5 to 15 weight percent of a partially-esterified vegetable oil, an air-oxidized vegetable oil, a high molecular weight alkali metal sulfonate salt, a high carbon amide, a high molecular weight ethoxylated organic alcohol, or mixtures thereof and from 0.5 to 3.0 weight percent of an ethylene homopolymer, a polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives of ethylene polymers, or mixtures thereof. The lubricant is applied to metal in molten form.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: June 28, 1988
    Assignee: Nalco Chemical Company
    Inventor: John M. Sech
  • Sludge conditioning process
    Patent number: 4753738
    Abstract: A method of conditioning sludge formed in paint spray booths, where the detackifier is a melamine-formaldehyde, polyvinyl alcohol and styrene-acrylate paint detackier by adding a water conditioner that includes acrylamide/dimethylaminoethylmethacrylate methylsulfate quat.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: June 28, 1988
    Assignee: Nalco Chemical Company
    Inventor: Shu-Jen Huang
  • Concentrated lapping slurries
    Patent number: 4752628
    Abstract: Improved lapping compositions are disclosed which contain;______________________________________ % by weight Ingredients General Preferred ______________________________________ Finely divided inorganic 5-70 40-60 abrasive Biocide .05-3 .1-2 Carboxylic acid .1-1 .2-.5 dispersant polymer Carboxylic acid 0.5-5 .2-1.5 polymer thickener Water-soluble corrosion .5-5 1-3 inhibitor Lubricant (optional) .
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: June 21, 1988
    Assignee: Nalco Chemical Company
    Inventor: Charles C. Payne
  • Cooling water corrosion inhibition method
    Patent number: 4752443
    Abstract: A method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, by dosing the water with a composition which comprises a water-soluble inorganic phosphate capable of inhibiting corrosion in an aqueous alkaline environment and a hydrocarbon polymer containing an N-substituted acrylamide polymers with an amide structure as follows: ##STR1## where R.sub.2 is hydrogen or methyl, R.sub.1 is a hydrogen or an alkyl and R is alkylene or phenylene, and X is sulfonate, (poly)hydroxyl, (poly)carboxyl or carbonyl, and combinations thereof; or containing derivatized maleic anhydride homo-, co- and terpolymers having N-substituted maleamic acid units, N-substituted maleimide units and maleic acid (and salts) units having a structure as follows: ##STR2## where R.sub.1, R.sub.2 and R.sub.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: June 21, 1988
    Assignee: Nalco Chemical Company
    Inventors: John E. Hoots, Donald A. Johnson, Dodd W. Fong, James F. Kneller
  • Upgrading petroleum and petroleum fractions
    Patent number: 4752381
    Abstract: A method of neutralizing the organic acidity in petroleum and petroleum fractions to produce a neutralization number less than 1.0 whereby they are rendered suitable as lube oil feed stocks which comprises treating said heavy gas oils with a neutralizing amount of monoethanolamine to form an amine salt with the organic acids and then heating the thus-neutralized petroleum or petroleum fraction at a temperature and for a time sufficient to convert the amine salts to amides.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: June 21, 1988
    Assignee: Nalco Chemical Company
    Inventors: Sam Ferguson, Darrell D. Reese
  • Paint removal using oil-in-water emulsions
    Patent number: 4750919
    Abstract: A method for the removal of over-sprayed paint solids which comprises contacting the over-sprayed paint solids with an oil-in-water emulsion until the emulsion is loaded with at least 5 parts by weight of paint solids per 100 parts by weight of the hydrocarbon liquid of the emulsion.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: June 14, 1988
    Assignee: Nalco Chemical Company
    Inventors: Robert R. Patzelt, Edwin C. Zuerner, Michael L. Dwyer