Compositions Containing An Agent For Breaking (resolving) Or Inhibiting Colloid Systems; Processes Of Breaking (resolving) Or Inhibiting Colloid Systems (e.g., Gel Breaking Or Inhibiting, Coagulating, Flocculating); Processes Of Preparing The Compositions Patents (Class 516/113)
  • Patent number: 11745121
    Abstract: Embodiments of the present disclosure describe an inline demulsification system (400, 430) including an inline flow conditioner (402,410) for separating a multiphase fluid into a liquid phase (420) and a gas phase (422), wherein the liquid phase (420) includes an emulsion; and an ultrasonic wave device (404), provided downstream from the flow conditioner (402, 410), including one or more ultrasonic probes (442) for emitting ultrasonic waves (452) towards the multiphase fluid, wherein the ultrasonic waves (452) demulsify at least a portion of the emulsion. Embodiments of the present disclosure also describe related systems and methods.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: September 5, 2023
    Assignees: Khalifa University of Science and Technology, Abu Dhabi National Oil Company
    Inventors: Mahmoud Meribout, Lyes Khezzar, Nabil Kharoua, Esra Al Hosani
  • Patent number: 10744425
    Abstract: Effective defoamer compositions contain two different aryl-substituted organopolysiloxanes and filler particles, and show high defoaming capability.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: August 18, 2020
    Assignee: WACKER CHEMIE AG
    Inventors: Christof Brehm, Richard Becker, Holger Rautschek
  • Patent number: 10553420
    Abstract: A method includes: polishing a semiconductor wafer by a polishing device; measuring a form of the semiconductor wafer by a measuring device before a polished surface of the semiconductor wafer becomes hydrophilic; and setting polishing conditions for the polishing based on a measurement result of the form of the semiconductor wafer by a polishing condition setting unit.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 4, 2020
    Assignee: SUMCO TECHXIV CORPORATION
    Inventor: Kenji Yamashita
  • Patent number: 8871988
    Abstract: Controlling the formation of crystalline hydrates in various fluid systems, most notably, gas and oil transmission pipeline systems by contacting the systems with certain polymers or polymers associated with solid particles. The polymers useful are chelating polymers capable of interacting with charged gaseous molecules such as carbon dioxide, by removing the carbon dioxide, or more practically by scavenging for the carbon dioxide, to prevent the methane or ethane hydrate structures from forming since they require carbon dioxide to stabilize their structures.
    Type: Grant
    Filed: December 11, 2010
    Date of Patent: October 28, 2014
    Inventor: David Graham
  • Patent number: 8707978
    Abstract: Where the loss of volatile organics during storage of high gravity oil is minimized by forming a flowable or pumpable gel in the high gravity oil, (and/or condensates and distillates), as they are introduced to a storage vessel, the gel is broken by the addition of a small amount of an amine/formaldehyde reaction product, which may be either a triazine or a mixture of non-triazine reaction products. The previously gelled hydrocarbon may then by more readily moved by draining or pumping into a pipeline.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: April 29, 2014
    Assignee: CST Performance Products Corp.
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin, Wayne Mueller
  • Publication number: 20140031472
    Abstract: Methods and systems for reducing the volume of polystyrene foam wherein a foam reducing agent is applied to the foam, the foam reducing agent in some embodiments comprising a branched dibasic ester blend.
    Type: Application
    Filed: January 10, 2013
    Publication date: January 30, 2014
    Inventors: David FLUCK, Ruela PABALAN, Charles AYMES
  • Patent number: 8633255
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities affected (increased or reduced, e.g. gels broken) by the indirect or direct action of a composition that contains at least one fatty acid that has been affected, modified or reacted with an alkali metal base, an alkali earth metal base, ammonium base, and/or organic base compound, optionally with an alkali metal halide salt, an alkali earth metal halide salt, and/or an ammonium halide salt. The composition containing the resulting saponification product is believed to either act as a co-surfactant with the VES itself to increase viscosity and/or possibly by disaggregating or otherwise affecting the micellar structure of the VES-gelled fluid. In a specific, non-limiting instance, a brine fluid gelled with an amine oxide surfactant may have its viscosity broken with a composition containing naturally-occurring fatty acids in canola oil or corn oil affected with CaOH, MgOH, NaOH and the like.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: January 21, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 8618180
    Abstract: The invention relates to the use of nondendrimeric, high-functionality hyperbranched polyesters and polycarbonates which are obtainable by reacting (i) at least one aliphatic, cycloaliphatic, araliphatic or aromatic dicarboxylic acid (A2) or derivatives thereof, or organic carbonates (A2?) with (ii) at least one x-hydric aliphatic, cycloaliphatic, araliphatic or aromatic alcohol (Cx) which has more than two OH groups, where x is a number greater than 2, preferably from 3 to 8, more preferably from 3 to 6, even more preferably from 3 to 4 and especially 3, and (iii) at least one fatty acid amide alkoxylate (D) of saturated or unsaturated C2-C30 fatty acid amides with an average of from 1 to 40 alkylene oxide units as demulsifiers for splitting crude oil emulsions.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: December 31, 2013
    Assignee: BASF SE
    Inventors: Bernd Bruchmann, Andreas Eichhorn, Marcus Guzmann
  • Publication number: 20130130943
    Abstract: A method for breaking the viscosity of an aqueous fluid gelled with a viscoelastic surfactant (VES) includes: providing an aqueous fluid; adding to the aqueous fluid, in any order, components comprising: a VES comprising a non-ionic surfactant, cationic surfactant, amphoteric surfactant or zwitterionic surfactant, or a combination thereof, in an amount sufficient to form a gelled aqueous fluid comprising a plurality of elongated micelles, an unsaturated fatty acid comprising a monoenoic acid or a polyenoic acid; or a combination thereof; and a plurality of metallic particles to produce a mixture comprising dispersed metallic particles in the gelled aqueous fluid. The method also includes dissolving the metallic particles in the gelled aqueous fluid to provide a source of metal ions and heating the gelled aqueous fluid to a temperature sufficient to cause the unsaturated fatty acid to auto-oxidize to products present in an amount effective to reduce the viscosity.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: James B. Crews
  • Patent number: 8431639
    Abstract: A composition, such as a pigment dispersion or coating composition, includes a pigment and a wetting additive. The wetting additive includes a first agent and a second agent. The first agent has the following formula: X(AO)mH wherein X is a C6 to C16 branched chain, A is an alkylene group selected from the group of ethylene groups, propylene groups, butylene groups, and combinations thereof, and m is from about 3 to about 20. The second agent is different from the first agent and has the following formula: Y(A?O)nH wherein Y is a C6 to C16 linear chain, A? is an alkylene group selected from the group of ethylene groups, propylene groups, butylene groups, and combinations thereof, and n is at least about 3. The second agent has a triblock (A?O)p(EO)q(A?O)r configuration in the portion represented by (A?O)n, wherein A? is selected from the group of propylene groups, butylene groups, and combinations thereof and wherein p, q, and r are each independently at least 1.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: April 30, 2013
    Assignee: BASF Corporation
    Inventor: Michael J. Anchor
  • Patent number: 8426478
    Abstract: Formulation comprising hydrophobicized particles of silicon dioxide, mineral oil and one or more emulsifiers, where the hydrophobicized silicon dioxide is a fumed silicon dioxide, possesses a BET surface area of 200 to 300 m2/g, has on the surface of the particles O—Si—(CnH2n+1)3 groups, where n is 1 to 3 and where the (CnH2n+1) units are alike or different, has a carbon content of 1.5% to 5% by weight, based on the hydrophobic silicon dioxide, and is present in the formulation with a fraction of 0.05% to 5% by weight.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 23, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Lara Dabrowski, Frank Menzel, Horst-Werner Wollenweber
  • Publication number: 20130081819
    Abstract: Where the loss of volatile organics during storage of high gravity oil is minimized by forming a flowable or pumpable gel in the high gravity oil, (and/or condensates and distillates), as they are introduced to a storage vessel, the gel is broken by the addition of a small amount of an amine/formaldehyde reaction product, which may be either a triazine or a mixture of non-triazine reaction products. The previously gelled hydrocarbon may then by more readily moved by draining or pumping into a pipeline.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin, Wayne Mueller
  • Patent number: 8375971
    Abstract: The present invention relates to the use of a zwitterionic surfactant in combination with an ether sulphate or ether carboxylate surfactant in a water-based system as a drag-reducing agent. The combination has besides a high drag-reducing effect also a low sensitivity to hard water.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: February 19, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Martin Hellsten, Hans Oskarsson
  • Publication number: 20120255878
    Abstract: A preserving agent for temporarily storing used paint application tools, in particular paint brushes and paint rollers, is used by immersing at least the paint containing portion of the paint application tool therein. The preserving agent is a water based gel. An electrolyte is used for breaking up the gel afterwards. A device for temporarily storing used paint application tools, and a composite kit, including the device, the water based gel, and the electrolyte are included.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 11, 2012
    Applicants: GEBR. VAN DER GEEST B.V., VAN WEEZENBEEK SPECIALTIES B.V.
    Inventors: Sebastiaan Joannes van Weezenbeek, Michel Hendrikus Wilhelmus Kosman, Sebastiaan Maria Van Der Geest
  • Patent number: 8236864
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities affected (increased or reduced, e.g. gels broken) by the indirect or direct action of a composition that contains at least one fatty acid that has been affected, modified or reacted with an alkali metal base, an alkali earth metal base, ammonium base, and/or organic base compound, optionally with an alkali metal halide salt, an alkali earth metal halide salt, and/or an ammonium halide salt. The composition containing the resulting saponification product is believed to either act as a co-surfactant with the VES itself to increase viscosity and/or possibly by disaggregating or otherwise affecting the micellar structure of the VES-gelled fluid. In a specific, non-limiting instance, a brine fluid gelled with an amine oxide surfactant may have its viscosity broken with a composition containing naturally-occurring fatty acids in canola oil or corn oil affected with CaOH, MgOH, NaOH and the like.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: August 7, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 8178586
    Abstract: A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. The formulation comprises a polymeric material AA which includes —O—moieties pendent from a polymeric backbone thereof and said material is optionally cross-linked. In one embodiment, the formulation may comprise polyvinyl alcohol. In an alternative embodiment, the formulation may comprise a cross-linked polymeric material, such as cross-linked polyvinyl alcohol. After the viscous composition has been transported to a desired location, it may be separated from the other components.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: May 15, 2012
    Assignee: Oilflow Solutions Holdings Limited
    Inventors: Philip Fletcher, Michael John Crabtree, Donald Eagland, Nicholas John Crowther
  • Patent number: 8044106
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities affected (increased or reduced) by the indirect or direct action of a composition that contains at least one fatty acid that has been affected, modified or reacted with an alkali metal halide salt, an alkaline earth metal halide salt, and/or an ammonium salt and a water soluble base. The composition containing the resulting saponification product is believed to either act as a co-surfactant with the VES itself to increase viscosity and/or possibly by disaggregating or otherwise affecting the micellar structure of the VES-gelled fluid. In a non-limiting instance, a brine fluid gelled with an amine oxide surfactant has its viscosity broken with a composition containing naturally-occurring fatty acids in canola oil reacted with a water soluble base such as NaOH, KOH, NH4OH, and the like with an alkali halide salt such as CaCl2, MgCl2, NaCl, NH4Cl and the like.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 25, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 7987866
    Abstract: The present invention relates to the use of a zwitterionic surfactant in combination with an ether sulphate or ether carboxylate surfactant in a water-based system as a drag-reducing agent. The combination has besides a high drag-reducing effect also a low sensitivity to hard water.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: August 2, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Martin Hellsten, Hans Oskarsson
  • Patent number: 7947745
    Abstract: An aqueous fluid having a viscosity greater than the viscosity of water is contacted with a water soluble material for a time and at a temperature sufficient to reduce the viscosity of the aqueous fluid to a value which is less than about 10 percent of the initial viscosity of the aqueous fluid. The water soluble material is an alkali metal peroxide or a combination of an alkali metal peroxide and a transition metal-containing compound.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: May 24, 2011
    Assignees: Fritz Industries, Inc, FMC Corporation
    Inventors: Steven B. Laramay, Charles George, Henry A. Pfeffer, III
  • Patent number: 7942201
    Abstract: Apparatus and methods of reducing the viscosity of a gelled fluid is provided. In one embodiment, a viscosity reducing microbe is disposed in a capsule and added to the gelled fluid. The gelled fluid may include a thickening agent adapted to increase its viscosity. Upon release from the capsule, the microbe begins to digest the thickening agent in the gelled fluid and/or releases enzymes that that breakdown the thickening agent.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: May 17, 2011
    Assignee: Clearwater International, LLC
    Inventors: Barry Ekstrand, Frank Zamora, Sarkis R. Kakadjian
  • Patent number: 7939472
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a composition that contains at least one metal ion source and optionally at least one second source. An optional second source may be a chelating agent where at least one reducing agent source may be additionally optionally used. Another optional component with the metal ion source includes a second, different metal ion source. The breaking composition is believed to directly attack the VES itself, possibly by disaggregating or otherwise attacking the micellar structure of the VES-gelled fluid, and/or possibly by changing the chemical structure of the VES to give two or more products.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: May 10, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 7875111
    Abstract: The invention provides anti-skinning compositions for use in manufacturing oil-based coating materials. The novel anti-skinning compositions are clear, homogeneous solutions of cyclohexanone oxime that can be prepared by dissolving cyclohexanone oxime in a suitable carboxylic acid or mixture of carboxylic acids. Suitable carboxylic acids include fatty acids, such as fatty acids of tall oil distillate. Surprisingly, the fatty acids are useful as delivery solvents over a useful range of temperatures and have desirable flash points. They are compatible with many oil-based coating materials. The anti-skinning compositions and manufacturing methods of the present invention are especially useful in the manufacture of oil-based paints containing metal carboxylate driers.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: January 25, 2011
    Assignee: Troy Corporation
    Inventors: Milton Nowak, Lilya Gurariy
  • Publication number: 20110000854
    Abstract: A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan, followed by cationic chitosan, causes the rapid formation of very large and cohesive fibrillar aggregates that may exhibit high solids to liquid ratios and that quickly settle out from the aqueous media. The aqueous media can be easily separated from the large fibrillar aggregates by settling under gravity or by filtration through a porous containment device, such as a synthetic or non-synthetic woven or non-woven fabric including a geotextile fabric or a solid containment device containing a solid mesh screen.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 6, 2011
    Applicant: HaloSource, Inc.
    Inventors: Everett J. Nichols, James R. Scott, Jeffrey F. Williams, Yongjun Chen
  • Patent number: 7745500
    Abstract: A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. The formulation comprises a polymeric material AA which includes —O— moieties pendent form a polymeric backbone thereof and said material is optionally cross-linked. In one embodiment, the formulation may comprise polyvinyl alcohol. In an alternative embodiment, the formulation may comprise a cross-linked polymeric material, such as cross-linked polyvinyl alcohol. After the viscous composition has been transported to a desired location, it may be separated from the other components.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: June 29, 2010
    Assignee: Advanced Gel Technology Limited
    Inventors: Philip Fletcher, Michael John Crabtree, Donald Eagland, Nicholas John Crowther
  • Patent number: 7728044
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities affected (increased or reduced, e.g. gels broken) by the indirect or direct action of a composition that contains at least one fatty acid that has been affected, modified or reacted with an alkali metal base, an alkali earth metal base, ammonium base, and/or organic base compound, optionally with an alkali metal halide salt, an alkali earth metal halide salt, and/or an ammonium halide salt. The composition containing the resulting saponification product is believed to either act as a co-surfactant with the VES itself to increase viscosity and/or possibly by disaggregating or otherwise affecting the micellar structure of the VES-gelled fluid. In a specific, non-limiting instance, a brine fluid gelled with an amine oxide surfactant may have its viscosity broken with a composition containing naturally-occurring fatty acids in canola oil or corn oil affected with CaOH, MgOH, NaOH and the like.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 1, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 7666916
    Abstract: A flocculant, a manufacturing method therefor, and a flocculation method using the flocculant are provided such that a suspension of tap water treatment plant, sewage treatment plant, industrial drainage water or other service water or drainage water can be easily, safely, and quickly treated. A flocculant made from a silicon colloidal solution for gelation through dilution and flocculating suspended matter in conjunction with the gelation.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: February 23, 2010
    Inventors: Keiichiro Asaoka, Hidetake Nerome
  • Patent number: 7595284
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a composition that contains at least one metal ion source and optionally at least one second source. An optional second source may be a chelating agent where at least one reducing agent source may be additionally optionally used. Another optional component with the metal ion source includes a second, different metal ion source. The breaking composition is believed to directly attack the VES itself, possibly by disaggregating or otherwise attacking the micellar structure of the VES-gelled fluid, and/or possibly by changing the chemical structure of the VES to give two or more products.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: September 29, 2009
    Inventor: James B. Crews
  • Publication number: 20090124740
    Abstract: A composition, such as a pigment dispersion or coating composition, includes a pigment and a wetting additive. The wetting additive includes a first agent and a second agent. The first agent has the following formula: X(AO)mH wherein X is a C6 to C16 branched chain, A is an alkylene group selected from the group of ethylene groups, propylene groups, butylene groups, and combinations thereof, and m is from about 3 to about 20. The second agent is different from the first agent and has the following formula: Y(A?O)nH wherein Y is a C6 to C16 linear chain, A? is an alkylene group selected from the group of ethylene groups, propylene groups, butylene groups, and combinations thereof, and n is at least about 3. The second agent has a triblock (A?O)p(EO)q(A?O)r configuration in the portion represented by (A?O)n, wherein A? is selected from the group of propylene groups, butylene groups, and combinations thereof and wherein p, q, and r are each independently at least 1.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 14, 2009
    Inventor: MICHAEL J. ANCHOR
  • Patent number: 7482162
    Abstract: We disclose methods for measuring vitamin D metabolite in plasma or serum samples. The methods comprise a step of adding to the plasma or serum samples a non-competitive displacement agent comprising 8-anilino-1-naphthalenesulfonic acid ammonium salt, 3-(acetonylbenzyl)-4-hydroxycoumarin and a water miscible solvent. The non-competitive displacement agent separates vitamin D metabolite from binding proteins in the sample, such that the displaced vitamin D metabolite is available for capture and detection in subsequent binding assays. Thus, our invention finds use in methods of separating and detecting vitamin D metabolites otherwise tightly bound to plasma or serum binding proteins.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: January 27, 2009
    Assignee: Immunodiagnostic Systems Ltd.
    Inventors: David Laurie, Alexander Kirkley Barnes, Michael James Gardner
  • Publication number: 20070276038
    Abstract: A bromine/nitro moiety linked into the backbone of an ester or other compound over a wide range of occurrence rates provides antimicrobial, bio-resistant and fungal resistant properties for metal working fluids (MWF)s and other coatings. The moiety can be have the bromo and nitro groups linked to the same or different carbon atoms. The present invention also relates to urethanes, urea, amides, imides, carbonates, ethers, siloxanes, and many other types of linkages essential to MWF bases.
    Type: Application
    Filed: May 7, 2007
    Publication date: November 29, 2007
    Inventor: Thomas Daly
  • Patent number: 7270803
    Abstract: Unique abrasive materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial, particularly simultaneously high pellicle film cleaning properties and moderate dentin abrasion levels. Such a result thus accords the user a dentifrice that effectively cleans tooth surfaces without detrimentally abrading such surfaces. Furthermore, the produced abrasive materials also exhibit very high and desirable brightness properties that permit easy incorporation and utilization within dentifrices for aesthetic purposes. Encompassed within this invention is a unique method for making such gel/precipitated silica composite materials for such a purpose, particularly under high shear conditions, as well as the different materials within the structure ranges described above and dentifrices comprising such.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: September 18, 2007
    Assignee: J.M. Huber Corporation
    Inventor: Patrick D. McGill
  • Patent number: 7267814
    Abstract: Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated material. With low structured composites (as measured via linseed oil absorption levels from 40 to 100 ml oil absorbed/100 g composite), simultaneously high pellicle film cleaning properties and moderate dentin abrasion levels are possible in order to accord the user a dentifrice that effectively cleans tooth surfaces without detrimentally abrading such surfaces. Increased amounts of high structure composite materials tend to accord greater viscosity build and thickening benefits together with such desirable abrasion and cleaning properties, albeit to a lesser extent than for the low structure types.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: September 11, 2007
    Assignee: J.M. Huber Corporation
    Inventors: Patrick D. McGill, William C. Fultz
  • Patent number: 7255852
    Abstract: Precipitated silica comprising porous silica particles having a cumulative surface area for all pores having diameters greater than 500 ? of less than 8 m2/g, as measured by mercury intrusion, and a percentage cetylpyridinium chloride (% CPC) Compatibility of greater than about 55%. The precipitated silica product is especially well-adapted for use in dentifrices containing cetylpyridinium chloride, which do not attach to the low surface area silica product in a meaningful level and thus remain available for antimicrobial action. Processes for making the silica product are also provided.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: August 14, 2007
    Assignee: J.M. Huber Corporation
    Inventors: Karl W. Gallis, Mark E. Wozniak, John A. Kostinko
  • Patent number: 7244770
    Abstract: Methods suitable for selecting optimal defoamers for use in fermentation processes are described wherein the methods comprise: (a) determining an amount of each of two or more defoamers which provides a requisite dynamic surface tension of at most 50 mN/m at a particular frequency in a fermentation medium; and (b) selecting the defoamer which provides the requisite dynamic surface tension at the lowest amount. Methods for controlling foam by determining and adjusting dynamic surface tension are also described.
    Type: Grant
    Filed: October 26, 2002
    Date of Patent: July 17, 2007
    Assignee: Cognis France, S.A.
    Inventors: Benoit Abribat, Jean-Pierre Molitor, Christian De Haut, Stephanie Merlet, Peter Claessens
  • Patent number: 7208529
    Abstract: It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120° F. (49° C.) and about 280° F. (138° C.). The aminocarboxylic acids are believed to act directly on the polymer and not to any great extent or not to as an effective extent on a crosslinking agent, if present. The polymer may be a polysaccharide, and the aminocarboxylic acid may be selected from the group including, but not necessarily limited to, tetrasodium ethylenediaminetetraacetic acid (Na4EDTA), tetrasodium propylenediaminetetraacetic acid (Na4PDTA), trisodium hydroxyethylenediaminetetraacetic acid (Na4HEDTA), trisodium nitrilotriacetic acid (Na3NTA), salts of these acids, and mixtures thereof.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: April 24, 2007
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 7160842
    Abstract: It has been discovered that fracturing fluid breaker mechanisms are improved by the inclusion of a polyol alone that directly degrades the polysaccharide backbone, and optionally additionally by removing the crosslinking ion, if present. That is, viscosity reduction (breaking) occurs by breaking down the chemical bonds within the backbone directly, rather than by merely removing the crosslinking ion, if present. The gel does not have to be crosslinked for the method of the invention to be successful, although it may be crosslinked. In one non-limiting embodiment, the polyol has at least two hydroxyl groups on adjacent carbon atoms. In another embodiment, the polyols are monosaccharides such as glycerols and sugar alcohols, and may include mannitol, sorbitol, glucose, fructose, galactose, mannose, lactose, maltose, allose, etc. and mixtures thereof.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: January 9, 2007
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 7084093
    Abstract: It has been discovered that fracturing fluid breaker mechanisms are improved by the inclusion of a catalyzed polyol alone that directly degrades the polysaccharide backbone, and optionally additionally by removing the crosslinking ion, if present. That is, viscosity reduction (breaking) occurs by breaking down the chemical bonds within the backbone directly. The gel does not have to be crosslinked for the method of the invention to be successful, although it may be crosslinked. In one non-limiting embodiment, the polyol has at least two hydroxyl groups on adjacent carbon atoms. In another embodiment, the polyols are simple sugars and sugar alcohols, and may include mannitol, sorbitol, glucose, fructose, galactose, mannose, lactose, maltose, allose, etc. and mixtures thereof. The catalyzing metal ion may employ a metal selected from Groups VIB, VIIB, VIII, IB, and IIB of the Periodic Table (previous IUPAC American Group notation).
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: August 1, 2006
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 7001634
    Abstract: The present invention relates to a process for suppressing the foaming of an aqueous system which involves combining water and at least one defoamer composition which has a hydroxyl equivalent molecular weight of at least 4000 Da and a cloud point less than or equal to 30° C. in 1% aqueous solution. The high hydroxyl equivalent molecular weight defoamers of the present invention exhibit excellent defoaming properties at a low cloud point. Additionally, defoamers of the present invention exhibit defoaming properties which are better than those of defoamers having the same cloud point which are based on polyoxyalkylene copolymers prepared in the presence of potassium hydroxide. The superior defoaming properties of the defoamers of the present invention are particularly useful in the manufacture or processing of food items.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: February 21, 2006
    Assignee: Bayer Materialscience LLC
    Inventor: Edward P. Browne
  • Patent number: 6946119
    Abstract: Precipitated silica product having low surface area and enhanced flavor compatibility. The precipitated silica product is especially well-adapted for use in dentifrices containing cetylpyridinium chloride, which do not attach to the low surface area silica product in a meaningful level and thus remain available for antimicrobial action. Processes for making the low surface area silica product are also provided.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: September 20, 2005
    Assignee: J.M. Huber Corporation
    Inventors: Karl W. Gallis, Fitzgerald A. Sinclair, Mark E. Wozniak, Jason T. Zapf, John A. Kostinko, Michael Simone
  • Patent number: 6893798
    Abstract: A method for treating a micro-emulsion that can be used for removing the ink-accepting areas of a lithographic printing master is disclosed, which enables to recycle the water from the used micro-emulsion. The method comprises the heating of the micro-emulsion to a temperature above 50° C. thereby obtaining an aqueous phase and an organic phase and separating the aqueous phase from the organic phase.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 17, 2005
    Assignee: Agfa-Gevaert
    Inventors: Eric Verschueren, Peter Geerts
  • Publication number: 20040266892
    Abstract: A process for preparing particles of a substance comprising contacting a first formulation including a first substance with a first solvent stream and a second solvent stream, thereby causing formation of particles of the first substance, wherein both the first and second solvent streams are in a non-supercritical state, and subjecting the resultant mixture to a separation process which causes separation of the first substance from the first and second solvent streams.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 30, 2004
    Inventors: Mazin Nicola, Neale Gray
  • Publication number: 20040176480
    Abstract: The present invention relates to novel oil-in-water dispersions which comprise
    Type: Application
    Filed: December 5, 2003
    Publication date: September 9, 2004
    Inventors: Rainer Dyllick-Brenzinger, Markus Kamieth, Johann Bonn, Manfred Matz, Klaus Lorenz
  • Patent number: 6706769
    Abstract: It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120° F. (49° C.) and about 280° F. (138° C.). The aminocarboxylic acids are believed to act directly on the polymer and not to any great extent or not to as an effective extent on a crosslinking agent, if present. The polymer may be a polysaccharide, and the aminocarboxylic acid may be selected from the group including, but not necessarily limited to, tetrasodium ethylenediaminetetraacetic acid (Na4EDTA), tetrasodium propylenediaminetetraacetic acid (Na4PDTA), trisodium hydroxyethylenediaminetetraacetic acid (Na4HEDTA), trisodium nitrilotriacetic acid (Na3NTA), salts of these acids, and mixtures thereof.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 16, 2004
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Publication number: 20040048935
    Abstract: A method of dusting-preventive treatment in which a powder having dusting property is treated with fibril-forming PTFE (polytetrafluoroethylene) to impart non-dusting property thereto and the non-dusting property of the powder, after having been reduced during transportation, are economically and advantageously recovered or improved through a relatively simple step. The method comprises: a first dusting-preventive treatment step in which fibril-forming polytetrafluoroethylene is added to a powder having dusting property, and a compression/shear force is exerted to the mixture at a temperature in the range of 20 to 200° C. to thereby regulate powder so as to have a flow value of 150 mm to 200 mm; and a second dusting-preventive treatment step in which a compression/shear force is exerted again at a temperature in the range of 50 to 150° C.
    Type: Application
    Filed: August 4, 2003
    Publication date: March 11, 2004
    Inventors: Hirofumi Tsutsumi, Urano Teruo, Masatsune Ogura, Tetsuya Shimoda
  • Publication number: 20040044089
    Abstract: The present invention is directed to a defoaming agent for use with polycarboxylate based admixtures for concrete. The defoaming agent is comprised of tributyl phosphate, an alkylaryl sulfonic acid metallic salt and a modified alkylpolyalcoxyester. Tributyl phosphate is a phosphate ester based defoamer and the modified alkylpolyalcoxyester is an air detraining agent. The alkylaryl sulfonic acid metallic salt is used as a hydrotrope to ensure that the tributyl phosphate and the modified alkylpolyalcoxyester react and do not separate.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 4, 2004
    Applicant: Tomahawk, Inc.
    Inventors: Donald R. Lane, Jose A. Melendez
  • Publication number: 20040019199
    Abstract: It has been discovered that fracturing fluid breaker mechanisms are improved by the inclusion of a catalyzed polyol alone that directly degrades the polysaccharide backbone, and optionally additionally by removing the crosslinking ion, if present. That is, viscosity reduction (breaking) occurs by breaking down the chemical bonds within the backbone directly. The gel does not have to be crosslinked for the method of the invention to be successful, although it may be crosslinked. In one non-limiting embodiment, the polyol has at least two hydroxyl groups on adjacent carbon atoms. In another embodiment, the polyols are simple sugars and sugar alcohols, and may include mannitol, sorbitol, glucose, fructose, galactose, mannose, lactose, maltose, allose, etc. and mixtures thereof. The catalyzing metal ion may employ a metal selected from Groups VIB, VIIB, VIII, IB, and IIB of the Periodic Table (previous IUPAC American Group notation).
    Type: Application
    Filed: July 25, 2003
    Publication date: January 29, 2004
    Inventor: James B. Crews
  • Publication number: 20040014823
    Abstract: This invention provides phyllosilicates and polyfunctional dispersants which can be manipulated to selectively control the viscosity of phyllosilicate slurries. The polyfunctional dispersants used in the present invention, which include at least three functional groups, increase the dispersion and exfoliation of phyllosilicates in polymers and, when used in conjunction with phyllosilicate slurries, significantly reduce the viscosity of slurries having high concentrations of phyllosilicates. The functional groups of the polyfunctional dispersants are capable of associating with multivalent metal cations and low molecular weight organic polymers, which can be manipulated to substantially increase or decrease the viscosity of the slurry in a concentration dependent manner. The polyfunctional dispersants of the present invention can also impart desirable properties on the phyllosilicate dispersions including corrosion inhibition and enhanced exfoliation of the phyllosilicate platelets.
    Type: Application
    Filed: June 2, 2003
    Publication date: January 22, 2004
    Applicant: The University of Chicago
    Inventor: David J. Chaiko
  • Publication number: 20040002552
    Abstract: A bromine/nitro moiety linked into the backbone of an ester or other compound over a wide range of occurrence rates provides antimicrobial, bio-resistant and fungal resistant properties for metal working fluids (MWF)s and other coatings. The moiety can be have the bromo and nitro groups linked to the same or different carbon atoms. The present invention also relates to urethanes, urea, amides, imides, carbonates, ethers, siloxanes, and many other types of linkages essential to MWF bases.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 1, 2004
    Inventor: Thomas Daly
  • Publication number: 20030162844
    Abstract: It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120° F. (49° C.) and about 280° F. (138° C.). The aminocarboxylic acids are believed to act directly on the polymer and not to any great extent or not to as an effective extent on a crosslinking agent, if present. The polymer may be a polysaccharide, and the aminocarboxylic acid may be selected from the group including, but not necessarily limited to, tetrasodium ethylenediaminetetraacetic acid (Na4EDTA), tetrasodium propylenediaminetetraaoetic acid (Na4PDTA), trisodium hydroxyethylenediaminetetraacetic acid (Na4HEDTA), trisodium nitrilotriacetic acid (Na3NTA), salts of these acids, and mixtures thereof.
    Type: Application
    Filed: February 28, 2002
    Publication date: August 28, 2003
    Inventor: James B. Crews
  • Patent number: 6569358
    Abstract: The method of preparing the porous material incorporating ultrafine metal particles comprises the following steps: (1) preparing surface-protected ultrafine metal particles by reducing metal ions in the presence of molecules such as dodecanethiol molecules; (2) immersing a wet gel in a solution of the ultrafine metal particles, thus forming an ultrafine metal particle/wet gel composite in which the ultrafine metal particles are incorporated in the wet gel; and (3) drying the ultrafine metal particle/wet gel composite to form a porous body.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: May 27, 2003
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Yutaka Tai, Koji Tajiri, Masao Watanabe, Sakae Tanemura