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US 7,531,600 B1Granted
Water-in-oil polymer emulsion containing microparticles
AssigneeKroff Chemical Company
InventorPaul Rey
Life of this patent
Estimating the term…
Abstract
A storage stable water-in-oil emulsion composition that includes 5% to 99% by weight of a water-in-oil emulsion polymer including a polymer or copolymer containing repeat units from an acrylamide monomer; 0.1% to 10% by weight of one or more inorganic microparticles; 0.5% to 90% by weight of a carrier solvent; and 0 to 90% by weight of a fluidizing agent. The compositions can be used to treat aqueous systems including paper processing, sludge dewatering and for fracturing fluids for subterranean formations.
Claims63
A water-in-oil emulsion composition comprising:
- (a) 5% to 99% by weight of a water-in-oil emulsion comprising:
- (i) 10% to 90% by weight of a hydrophobic oil phase;
- (ii) 0.5% to 10% by weight of a surfactant system;
- and
- (iii) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and a polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion;
- (b) 0.1% to 10% by weight of one or more inorganic microparticles;
- (c) 0.5% to 90% by weight of a carrier solvent;
- and
- (d) 0 to 90% by weight of a fluidizing agent,
- wherein each of the above weight percentages is based upon the total weight of the composition.
7 more elements
A water-in-oil emulsion composition comprising:
- (a) 5% to 99% by weight of a water-in-oil emulsion comprising:
- (1) 10% to 90% by weight of a hydrophobic oil phase;
- (2) 0.5% to 10% by weight of a surfactant system;
- and
- (3) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and the polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion,
- wherein each of the weight percentages (1)-(3) is based upon total weight of the water-in-oil emulsion;
- (b) 0.1% to 5% by weight of one or more inorganic microparticles selected from the group consisting of fumed silica, precipitated silica, colloidal silica, alumina silicates, treated silica, calcium carbonate, talc, and borosilicates;
- (c) 0.5% to 90% by weight of a carrier solvent selected from the group consisting of mineral oil, synthetic oil, modified oil, paraffinic oil, vegetable oil, ethylene glycol, propylene glycol, ethylene carbonate, propylene carbonate glycol ethers and mixtures thereof;
- and
- (d) 0 to 90% by weight of a fluidizing agent,
- wherein each of the above weight percentages of (a)-(d) is based upon the total weight of the composition.
8 more elements
A water-in-oil emulsion composition comprising:
- (a) 5% to 99% by weight of a water-in-oil emulsion comprising:
- (1) 10% to 90% by weight of a hydrophobic oil phase consisting essentially of one or more oils selected from the group consisting of mineral oil, synthetic oil, modified oil, paraffinic oil, and vegetable oil;
- (2) 0.5% to 10% by weight of a surfactant system consisting essentially of one or more surfactants selected from the group consisting of alkanolamides, polyoxyethylene derivatives of sorbitan esters, sorbitan monooleate, sorbitan monostearate, C6-C22 linear or branched alkyl ethoxylates with 1 to 30 oxyethylene units, C6-C22 linear or branched alkyl propoxylate with 1 to 30 oxypropylene units, C6-C22 linear or branched alkyl ethoxylate/propoxylate with 1 to 30 combined oxyethylene and propoxylate units, alkylaryl ethoxylates containing a C6-C22 aryl group with 1 to 30 oxyethylene units, hexadecyl sodium phthalate, cetyl sodium phthalate, stearyl sodium phthalate, and ethylene oxide condensates of fatty acid amides;
- and
- (3) 5% to 90% by weight of a polymer-containing aqueous phase consisting essentially of water, catalyst and initiator residues, optionally salts, and polymers consisting essentially of repeat units from one or more repeat units according to Formula I:
- wherein each occurrence of R1 is independently selected from H, methyl and ethyl;
- n is an integer from 10 to 10,000,000;
- Z is —NR2—;
- and each occurrence of R2 is independently selected from the group consisting of H, C1-C22 linear, branched or cyclic alkyl, aryl, alkaryl, aralkyl or alkenyl, a group —R3—NR22, a group —R3—N+R23X, and a group —R3—SO3Y, wherein R2 is as previously defined;
- R3 is a divalent linking group selected from the group consisting of C1-C22 linear, branched or cyclic alkylene, arylene, alkarylene, aralkylene or alkenylene, poly(ethyleneoxide) and poly(propyleneoxide);
- Y is H or an alkali metal ion;
- and X is a halide or methylsulfate, wherein the polymer consisting essentially of repeat units from one or more repeat units according to Formula I comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion, and wherein each of the weight percentages (1)-(3) is based upon total weight of the water-in-oil emulsion;
- (b) 0.1% to 10% by weight of one or more inorganic microparticles selected from the group consisting of fumed silica, precipitated silica, colloidal silica, alumina silicates, treated silica, calcium carbonate, talc, and borosilicates;
- (c) 0.5% to 90% by weight of a carrier solvent, wherein the carrier solvent is a solvent characterized as having Hansen Solubility parameters at 25° C. of:
- δd of from 13 to 18;
- δp of from 6 to 12;
- δh of at least 20;
- and
- δt of at least 20;
- and
- (d) 0 to 90% by weight of a fluidizing agent,
- wherein each of the above weight percentages of (a)-(d) is based upon the total weight of the composition.
19 more elements
A fracturing fluid comprising the mixture provided by adding a water-in-oil emulsion composition to water, wherein the water-in-oil emulsion composition comprises:
- (i) 5% to 99% by weight of a water-in-oil emulsion comprising
- (i) 10% to 90% by weight of a hydrophobic oil phase;
- (ii) 0.5% to 10% by weight of a surfactant system;
- and
- (iii) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and a polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion;
- (ii) 0.1% to 10% by weight of one or more inorganic microparticles;
- (iii) 0.5% to 90% by weight of a carrier solvent;
- and
- (iv) 0 to 90% by weight of a fluidizing agent,
- wherein each of the above weight percentages is based upon the total weight of the composition.
7 more elements
A method for making paper or paper board comprising:
- forming a cellulosic suspension;
- flocculating the suspension;
- draining the suspension on a screen to form a sheet;
- and
- drying the sheet;
- wherein the cellulosic suspension is flocculated by the addition of a water-in-oil emulsion composition comprising:
- (a) 5% to 99% by weight of a water-in-oil emulsion polymer comprising:
- (i) 10% to 90% by weight of a hydrophobic oil phase;
- (ii) 0.5% to 10% by weight of a surfactant system;
- and
- (iii) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and a polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion;
- (b) 0.1% to 10% by weight of one or more inorganic microparticles;
- (c) 0.5% to 90% by weight of a carrier solvent;
- and
- (d) 0 to 90% by weight of a fluidizing agent.
12 more elements
A method of dewatering sludge, wherein the sludge comprises solids and water, comprising the steps of:
- adding a water-in-oil emulsion composition to the sludge;
- and
- physically separating the solids from the water;
- wherein the water-in-oil emulsion composition comprises:
- (a) 5% to 99% by weight of a water-in-oil emulsion polymer comprising:
- (i) 10% to 90% by weight of a hydrophobic oil phase;
- (ii) 0.5% to 10% by weight of a surfactant system;
- and
- (iii) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and a polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion;
- (b) 0.1% to 10% by weight of one or more inorganic microparticles;
- (c) 0.5% to 90% by weight of a carrier solvent;
- and
- (d) 0 to 90% by weight of a fluidizing agent.
10 more elements
A water-in-oil emulsion composition consisting essentially of:
- (a) 5% to 99% by weight of a water-in-oil emulsion consisting essentially of:
- (i) 10% to 90% by weight of a hydrophobic oil phase;
- (ii) 0.5% to 10% by weight of a surfactant system;
- and
- (iii) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and a polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion;
- (b) 0.1% to 10% by weight of one or more inorganic microparticles;
- (c) 0.5% to 90% by weight of a carrier solvent;
- and
- (d) 0 to 90% by weight of a fluidizing agent,
- wherein each of the above weight percentages is based upon the total weight of the composition.
7 more elements
A fracturing fluid consisting essentially of the mixture provided by adding a water-in-oil emulsion composition to water, wherein the water-in-oil emulsion composition consists essentially of:
- (i) 5% to 99% by weight of a water-in-oil emulsion consisting essentially of:
- (i) 10% to 90% by weight of a hydrophobic oil phase;
- (ii) 0.5% to 10% by weight of a surfactant system;
- and
- (iii) 5% to 90% by weight of a polymer-containing aqueous phase comprising water and a polymer or copolymer containing repeat units from an acrylamide monomer, wherein the polymer or copolymer comprises from 2% by weight to 89.5% by weight of the water-in-oil emulsion;
- (ii) 0.1% to 10% by weight of one or more inorganic microparticles;
- (iii) 0.5% to 90% by weight of a carrier solvent;
- and
- (iv) 0 to 90% by weight of a fluidizing agent,
- wherein each of the above weight percentages is based upon the total weight of the composition.
7 more elements
Dependencies are inferred from the claim text.