Polymer Or Resin Containing (e.g., Foam, Etc.) Patents (Class 588/255)
  • Patent number: 11124656
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of multistage polymer particles with a first phase comprising structural units of a carboxylic acid monomer and a nonionic ethylenically unsaturated monomer; and a second phase with a calculated Tg of less than 50° C. and comprising a mixture of polymers which together comprise structural units of styrene or methyl methacrylate or both; structural units of one or of n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate; and structural units of a carboxylic acid monomer. The composition is useful as an open time additive in coatings formulations.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 21, 2021
    Assignee: Rohm and Haas Company
    Inventors: Jonathan DeRocher, Andrew Hejl, Jessica Levin, John J. Rabasco, Antony K. Van Dyk, Kimy Yeung
  • Patent number: 8975340
    Abstract: An organic synthesis of materials to achieve removal of low molecular weight ionic species, such as transition metal ions including cobalt, iron, nickel, and zinc, from aqueous solutions. The synthesis includes the steps of providing a cation exchange resin, functionalizing the cation exchange resin using a chloride intermediate to form a sulfonyl chloride resin, and reacting a multi-amine based ligand with the sulfonyl chloride resin to form a sequestration resin. The synthesis further includes the steps of cooling the sequestration resin, and washing and drying the sequestration resin.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: March 10, 2015
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Leon Yengoyan, Paul L. Frattini, Daniel Morgan Wells
  • Patent number: 8945443
    Abstract: An environmentally beneficial process for utilizing waste drill cuttings from oil and gas exploration. The waste drill cuttings (20) are used as a filler and combined with plastic to provide a plastic based product (26) in the plastics industry. In an embodiment the cuttings are thermally treated and formed into pellets. In a further embodiment the cuttings are treated and mixed with recycled plastic to be formed into pellets. The pellets are then used in the manufacture of rigid plastic products such as bollards, planters, benches and decking.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: February 3, 2015
    Assignee: Total Waste Management Alliance Limited
    Inventor: Douglas Campbell Garrick
  • Publication number: 20140343343
    Abstract: An assembly and method for processing human waste includes providing a supporting base having an opening within which a waste reservoir is affixed. The assembly may be installed on or below a rim of a toilet bowl. Solidification and pathogen killing materials are provided. The materials are deposited in the reservoir either prior to or upon accumulation of waste in the reservoir. The reservoir with the solidified waste is then sealed and transported to a collection facility.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 20, 2014
    Inventors: James T. Mullowney, JR., Theresa L. O'Keefe
  • Publication number: 20140330062
    Abstract: A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.
    Type: Application
    Filed: July 8, 2014
    Publication date: November 6, 2014
    Inventors: Terrance P. Fenelon, Thomas Vaughn
  • Patent number: 8801587
    Abstract: A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: August 12, 2014
    Assignee: Mix Manufacturing, Inc.
    Inventors: Terrance P. Fenelon, Thomas Vaughn
  • Patent number: 8598405
    Abstract: An object of the present invention is to provide a waste solution solidifying agent which can solidify a waste solution, particularly, a waste solution containing blood or body fluid at a low cost, uniformly, and in a short time; in particular, to provide a waste solution solidifying agent which can solidify a waste solution uniformly and in a short time in a vertically oriented waste solution equipment. As a means of achieving this object, a waste solution solidifying agent of the present invention is a particulate treating agent used in a method of treating a waste solution which solidifies a waste solution into a gel by placing a treating agent in a waste solution, and is characterized in that said agent contains, as an essential component, a water-absorbent resin having a crosslinked structure obtained by polymerizing a water-soluble ethylenic unsaturated monomer and, when flowing-placed at once into a 0.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: December 3, 2013
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yoshihiko Masuda, Masazumi Sasabe, Seiji Kato, Atsushi Tachibana, Kenji Kadonaga, Shigeru Oka
  • Patent number: 8577488
    Abstract: The present invention relates to a method of optimizing self-supporting film production. The method includes the steps of: determining at least one scrap factor which relates to a total amount of scrap in processing a film product; correlating the at least one scrap factor to at least one processing parameter; and adjusting the at least one processing parameter to reduce the total amount of scrap in processing the film product. The present invention also relates to a system for optimizing film production.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: November 5, 2013
    Assignee: MonoSol Rx, LLC
    Inventor: Beuford A. Bogue
  • Patent number: 8490795
    Abstract: Containers and methods for disposing unused pharmaceutical product are disclosed. Each container (100, 200, 300) may include a container body (104, 204, 304) with an internal chamber (116, 216, 316) for storing pharmaceutical product, along with a cover (124, 224, 324) for selectively limiting access to the chamber (116, 216, 316). An encapsulation component (128, 228, 328) may be selectively disposable within the chamber (116, 216, 316), and may be operable to encapsulate the pharmaceutical product within the container (100, 200, 300). For instance, the encapsulation component (128, 228, 328) may melt and/or flow into contact with the pharmaceutical product and thereafter solidify to encapsulate the pharmaceutical product. The encapsulation component (128, 228, 328) may melt and thereafter solidify between the cover (124, 224, 324) and shell (104, 204, 304) to limit removal of the cover (124, 224, 324) from the shell (104, 204, 304).
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: July 23, 2013
    Assignee: Mallinckrodt LLC
    Inventor: Robert J. Ziemba
  • Publication number: 20120283501
    Abstract: Retired natural gas pipeline portions are filled with polyurethane foam compositions sealing therewithin any polychlorinated biphenyls (PCBs) that may be present in the retired pipeline portion.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 8, 2012
    Inventor: David B. Crook
  • Patent number: 8278495
    Abstract: A chemical warfare (CW) agent decontamination system and method for decontaminated surfaces contaminated by CW agents. The system includes both solid particles and liquid solution in admixture such that the solid particles absorb the liquid decontamination material. The method of decontaminating surfaces contaminated with CW agents includes contacting the CW agent with a sufficient amount of a solid-particle sorbent for a sufficient time and under conditions which are sufficient to produce a reaction product having less toxicity than the CW agent. CW agents to be decontaminated include the nerve agents VX and G-type agents, and mustard agent HD. The system is non-toxic and has a reduced environmental impact as compared to the previously available decontamination systems and solutions.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: October 2, 2012
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Daniel Waysbort, William R. Creasy, H. Dupont Durst, David J. McGarvey
  • Publication number: 20120157745
    Abstract: A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Applicant: Mix Manufacturing, Inc.
    Inventors: Terrance P. Fenelon, Thomas Vaughn
  • Patent number: 8168067
    Abstract: A process for treating and disposing a liquid waste, which is solidified prior to disposal, includes steps of adding to said liquid waste a dry treatment product generally comprising approximately 25% to 75% bentonite clay and respectively 75% to 25% of a liquid-sorbing polymer, subjecting the liquid waste to a single pass high shear mix so as to incorporate the treatment product into the liquid waste with increased dispersion and reduced agglomeration, subjecting the treated liquid waste to a retention time suitable for solidification, and disposing of the solidified liquid waste. The liquid waste preferably is recirculated prior to addition of dry treatment product so as to permit a calibration of the characteristics of the liquid waste, and subsequent determination of the correct rate of dry treatment addition.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: May 1, 2012
    Assignee: Metaflo Technologies Inc.
    Inventors: Roger H. Woods, Doug Pullman
  • Patent number: 8114004
    Abstract: A Method and Device for solidification of waste liquids and fluids is disclosed, which is particularly well suited to processing radioactive waste fluids. Set forth is a receiving unit or subassembly for housing solidification agent, and one or more manifold units or subassemblies positioned within the receiving unit for providing waste fluid. The subassemblies operate in relation to each other to provide, position and mix solidification agent or polymer with waste fluid so that a dirt-like polymerized waste product is produced and positioned in the container for removal or later safe shipment or storage. Mathematical relationships, in preferred embodiments or aspects are utilized in determining number and sizing of manifold openings, and pressure of waste to be provided, to meet the requirements of waste fluids to be transported through these openings into the receiving unit.
    Type: Grant
    Filed: December 30, 2006
    Date of Patent: February 14, 2012
    Inventors: Dennis A. Brunsell, Larry E. Beets
  • Publication number: 20110301399
    Abstract: A method for disposing of liquid aqueous laboratory waste is described, which involves solidifying the liquid waste with a suitable isovolumic, space-filling superabsorbent polymer within a disposable impermeable film-type container held in an open top, reusable rigid outer container such as a laboratory beaker, and closing and removing the disposable container containing the solidified waste from the rigid outer container. The waste held in the film-type container can be finally disposed of through incineration or deposit in a suitable landfill.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Inventor: Daniel Perlman
  • Patent number: 8063265
    Abstract: A hydrogel having a floatability where from 40% to 90% of a solution and/or suspension to be thickened are thickened starting from the surface of the liquid and the rest of the solution and/or suspension to be thickened is thickened starting from the bottom of the container, a process for preparing the hydrogel and also its use for absorbing blood and/or body fluids, especially in hygiene articles, or for thickening aqueous solutions and/or suspensions, especially for thickening medical wastes.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 22, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Beck, Volker Frenz, Anna Kowalski, Elisabeth Selzer, Ernst Jürgen Bauer, Harald Keller, Bernhard Steinmetz
  • Patent number: 7998224
    Abstract: A melt of a material is cooled and a sheet of the material is formed in the melt. This sheet is transported, cut into at least one segment, and cooled in a cooling chamber. The material may be Si, Si and Ge, Ga, or GaN. The cooling is configured to prevent stress or strain to the segment. In one instance, the cooling chamber has gas cooling.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: August 16, 2011
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Peter L. Kellerman, Frederick Carlson, Frank Sinclair
  • Publication number: 20110124943
    Abstract: The invention relates to a coating composition for the storage or containment of waste that is toxic to health and/or the environment, comprising a composition based on an epoxy resin and a curing composition free from an aromatic amine curing agent. The invention also relates to the use of this composition for the coating of said waste.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 26, 2011
    Applicant: Cray Valley SA
    Inventor: Christine Dhersin
  • Publication number: 20110124944
    Abstract: A process for treating and disposing a liquid waste, which is solidified prior to disposal, includes steps of adding to said liquid waste a dry treatment product generally comprising approximately 25% to 75% bentonite clay and respectively 75% to 25% of a liquid-sorbing polymer, subjecting the liquid waste to a single pass high shear mix so as to incorporate the treatment product into the liquid waste with increased dispersion and reduced agglomeration, subjecting the treated liquid waste to a retention time suitable for solidification, and disposing of the solidified liquid waste. The liquid waste preferably is recirculated prior to addition of dry treatment product so as to permit a calibration of the characteristics of the liquid waste, and subsequent determination of the correct rate of dry treatment addition.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 26, 2011
    Applicant: METAFLO TECHNOLOGIES INC.
    Inventors: Roger H. Woods, Doug Pullman
  • Patent number: 7922644
    Abstract: A copolymer and water/ethanol solvent solution capable of binding with airborne contaminants or potential airborne contaminants, such as biological weapon agents or toxic particulates, coagulating as the solvent evaporates, and adhering the contaminants to a surface so as to inhibit the re-suspension of such contaminants. The solution uses a water or ethanol/water mixture for the solvent, and a copolymer having one of several functional group sets so as to have physical and chemical characteristics of high adhesion, low viscosity, low surface tension, negative electrostatic charge, substantially neutral pH, and a low pKa. Use of the copolymer solution prevents re-aerosolization and transport of unwanted, reactive species thus increasing health and safety for personnel charged with decontamination of contaminated buildings and areas.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: April 12, 2011
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Paula Krauter, David Zalk, D. Mark Hoffman
  • Publication number: 20110021860
    Abstract: Retired natural gas pipeline portions are filled with polyurethane foam compositions sealing therewithin any polychlorinated biphenyls (PCBs) that may be present in the retired pipeline portion.
    Type: Application
    Filed: October 28, 2009
    Publication date: January 27, 2011
    Inventor: David B. Crook
  • Patent number: 7811458
    Abstract: The invention relates to a method for the accelerated dehydration of sludges in sludge disposal areas, especially of sludges from rivers and harbors, by the exclusive use of anionic polymer flocculants and the use of materials obtained according to the inventive method.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: October 12, 2010
    Assignees: Stockhausen GmbH & Co. KG, Detlef Hegeman GmbH & Co. KG
    Inventors: Thorsten Buddenberg, Holger Herrmann, Hartmut Pawel, Otto Schroers, Wolfgang Hoeppner, Volker Hartmann
  • Publication number: 20100160707
    Abstract: An apparatus for encapsulating waste material (e.g radioactive sludge from nuclear processing plant) in a container (e.g Nirex box) for long term storage, comprising: a first storage vessel, for holding sludge; a second storage vessel, for holding encapsulation medium (e.g. cement based grout); an inline mixer (e.g. a static inline mixer), coupled for receiving sludge, and coupled to the second storage vessel, and producing, in use, a mixture of the sludge and grout; wherein the inline mixer is arranged for filling the container. Preferably, a dewatering unit (e.g. HydroTrans based), coupled for receiving sludge and outputting dewatered sludge to be mixed by the inline mixer. An encapsulation system comprising the encapsulation apparatus, and corresponding encapsulation methods, are also disclosed.
    Type: Application
    Filed: October 23, 2007
    Publication date: June 24, 2010
    Inventor: Douglas Kirk
  • Patent number: 7692058
    Abstract: Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: April 6, 2010
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Mark Fuhrmann, John Heiser, Paul Kalb
  • Publication number: 20100069700
    Abstract: A Method and Device for solidification of waste liquids and fluids is disclosed, which is particularly well suited to processing radioactive waste fluids. Set forth is a receiving unit or subassembly for housing solidification agent, and one or more manifold units or subassemblies positioned within the receiving unit for providing waste fluid. The subassemblies operate in relation to each other to provide, position and mix solidification agent or polymer with waste fluid so that a dirt-like polymerized waste product is produced and positioned in the container for removal or later safe shipment or storage. Mathematical relationships, in preferred embodiments or aspects are utilized in determining number and sizing of manifold openings, and pressure of waste to be provided, to meet the requirements of waste fluids to be transported through these openings into the receiving unit.
    Type: Application
    Filed: December 30, 2006
    Publication date: March 18, 2010
    Inventors: Dennis A. Brunsell, Larry E. Beets
  • Publication number: 20100056841
    Abstract: Methods of disposing of sorbent bodies comprising at least one toxic element which is substantially prevented from leaching into the surrounding environment are disclosed. The at least one toxic element which is prevented from leaching into the surrounding environment may include, for example, mercury, selenium, or both. The methods of disposing of said sorbent bodies may include, for example, depositing the sorbent bodies in a landfill. Landfill-disposable sorbent bodies which are configured to substantially prevent leaching into the surrounding environment of at least one toxic element are also disclosed.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 4, 2010
    Applicant: CORNING INCORPORATED
    Inventors: Kishor Purushottam Gadkaree, Anbo Liu, Shaole Wu
  • Patent number: 7662081
    Abstract: A method to remediate a release of one or more acidic materials, by supplying a powder composition comprising a polyacrylamide, and disposing that powder onto a liquid spill comprising one or more acidic materials.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 16, 2010
    Assignee: Phase III, Inc.
    Inventor: Dennis Weinhold
  • Patent number: 7589248
    Abstract: Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 15, 2009
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Mark Fuhrmann, John Heiser, Paul Kalb
  • Patent number: 7553423
    Abstract: The invention relates to a method for the accelerated dehydration of sludges in sludge disposal areas, especially of sludges from rivers and harbors, by the exclusive use of anionic polymer flocculants and the use of materials obtained according to the inventive method.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: June 30, 2009
    Assignees: Stockhausen GmbH & Co. KG, Detlef Hegemann GmbH & Co KG
    Inventors: Thorsten Buddenberg, Holger Herrmann, Hartmut Pawel, Otto Schroers, Wolfgang Hoeppner, Volker Hartmann
  • Publication number: 20090093665
    Abstract: A method of solidifying toxic or hazardous liquid waste, including the steps of pumping an aqueous waste, e.g., from a drilling fluid holding area; through a shearing device; adding the layered phyllosilicate to said aqueous waste in an amount sufficient to solidify the aqueous waste sufficiently such that the solidified aqueous waste has no free liquid; shearing the pumped aqueous waste, containing said layered phyllosilicate, sufficiently to partially exfoliate the layered phyllosilicate into phyllosilicate platelets and tactoids while in contact with the aqueous waste; pumping the sheared aqueous waste and layered phyllosilicate to a solidification area; and allowing the sheared aqueous waste and partially exfoliated layered phyllosilicate sufficient time to solidify such that there are no free liquids remaining in the solidified waste.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: AMCOL International Corporation
    Inventors: Alan A. Ross, Dave Kotloski, Giovanni Occhipinti
  • Patent number: 7476273
    Abstract: An accelerated-curing concrete masonry unit (CMU) mixture includes aggregate material, hydraulic cement and spent blasting abrasive particles, and may also include paint residue particles. The abrasive particles or abrasive and paint particles combined preferably make up at least 5.0% of the mixture by volume. Preferably, the hydraulic cement is Portland cement and the abrasive or combined particles make up about 10.0% to 17.0% of the mixture by volume. The abrasive particles typically have a fineness modulus ranging from 0.6 to 1.5 and more preferably from 0.75 to 1.2. Plastic particles may make up some or all of the abrasive particles. CMUs formed with this mixture are substantially more water repellent than standard CMUs and have a water absorption often no greater than 9.0 pounds per cubic foot. Preferred CMUs have an average net compressive strength of over 2,500 psi while levels of 3,000 psi or 3,500 psi are not uncommon.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: January 13, 2009
    Assignee: U.S. Technology Corporation
    Inventor: Raymond F. Williams
  • Publication number: 20090012343
    Abstract: The invention provides a method for the production of a stable monolith, the method comprising the encapsulation of a waste material in the monolith by means of chemical bond formation within the monolith, and a method for the disposal and storage of waste materials, which comprises the production of a stable monolith by such method. Waste materials which are particularly suited to treatment according to the invention include various geopolymer precursors, most particularly ion exchange materials such as aluminosilicate materials, and the invention is particularly suited to the disposal and long term storage of radioactive waste materials.
    Type: Application
    Filed: March 16, 2006
    Publication date: January 8, 2009
    Inventors: Michael James Angus, Ian Hugh Godfrey
  • Publication number: 20090012344
    Abstract: A method to remediate a release of one or more acidic materials, by supplying a powder composition comprising a polyacrylamide, and disposing that powder onto a liquid spill comprising one or more acidic materials.
    Type: Application
    Filed: December 4, 2007
    Publication date: January 8, 2009
    Applicant: PHASE III, INC.
    Inventor: Dennis Weinhold
  • Publication number: 20080004477
    Abstract: A Method and Device for solidification of waste liquids and fluids is disclosed. The invention is particularly well suited to processing radioactive waste fluids; and employs a metered polymer supply assembly and metered waste supply assembly, which have a prescribed positional orientation in relation to themselves and a container. These assemblies operate in relation to each other to meter, mix and position a solidification agent or polymer with a waste fluid so that a dirt-like polymerized waste product is produced and positioned in the container for safe shipment or storage. The waste supply assembly in a preferred embodiment is provided with a novel waste trough. Prescribed mathematical relationships for determining the trough length, and the cross-sectional dimensional relationship of the polymer chute of the invention in relation to the cross-sectional dimensional magnitude of the waste trough is set forth.
    Type: Application
    Filed: July 3, 2006
    Publication date: January 3, 2008
    Inventors: Dennis A. Brunsell, Larry E. Beets
  • Patent number: 7128780
    Abstract: A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding the liquid paint sludge as the hydrating agent directly to the building material mix.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: October 31, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert R. Matheson, Dennis M. Dixon, John R. Moore, David A. Fischer
  • Patent number: 6955638
    Abstract: A process for disposing of solvent-containing liquids so that they do not contaminate ground water. An absorbent blend is mixed into a water-containing solvent mixture at the rate of about 1 lb. of blend per gallon of liquid. The blend is made up of a swellable polymer, consisting of polyacrylamide/polyacrylate co-polymer salt or poly 2-propenamide-co-2-propenoic acid homopolymer salt which swells and absorbs liquid. The blend also contains a mixture of solid absorbents. The resulting mixture is stirred in the container until it becomes thick and then it is allowed to set to provide a disposable modeling clay-like solid. The resulting solid material, after curing, may be then simply added to solid trash, and thus, be freed from contaminating ground water.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: October 18, 2005
    Inventors: Don C. Atkins, Steven H. Bortz
  • Patent number: 6936745
    Abstract: A selective polymer-wrapping process is disclosed which is capable of exclusively wrapping radioactive particles from solid waste streams at room temperature. Accordingly, separation of wrapped radioactive particles from unwrapped non-radioactive particles is facilitated. The method includes exposing radioactive particles or material, alone or in combination with other materials, to a precursor monomer solution that is capable of polymerizing due to the inherent radiation of the radioactive material, whereby the radioactive material is partially or totally encapsulated in the resultant polymer.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: August 30, 2005
    Assignee: eVionX, Inc.
    Inventor: Muguo Chen
  • Patent number: 6902002
    Abstract: The present invention relates to subterranean cementing operations and, more particularly, to cement composition that include improved lost circulation materials, and methods of using such cement compositions in subterranean formations. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene and/or polypropylene. Optionally, the cement compositions also may include additives such as fly ash, a surfactant, a dispersant, a fluid loss control additive, a conventional lost circulation material, an generator, a retarder, a salt, a mica, fiber, a formation-conditioning agent, fumed silica, bentonite, expanding additives, microspheres, weighting materials, or a defoamer.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: June 7, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Bobby J. King, Roger S. Cromwell, D. Chad Brenneis
  • Publication number: 20040127620
    Abstract: A reactive coating composition and method for treating a surface including heavy metals by applying the reactive coating composition to the surface. The surface can be, for example, a paint layer containing heavy metals. The reactive coating composition includes a stabilizing agent to stabilize the heavy metal and a permeability enhancing agent to increase the permeability of the paint layer, facilitating the reaction of the heavy metal with the stabilizing agent. The structure including the treated paint layer can be left in place or can be disposed in a non-hazardous landfill.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 1, 2004
    Inventors: James Barthel, Mark A. Peters
  • Patent number: 6518477
    Abstract: A method for remediating non-homogeneous radioactive waste to significantly reduce the waste mass/volume and to convert such waste to products that meet federal regulatory compliance standards is disclosed. High level waste (HLW) stored in underground tanks is typically a multi component mixture. After removal of the waste from the tanks or other storage areas the waste is isolated in a thermal desorption-type reaction vessel where the waste is pyrolized at pre-determined and carefully controlled temperatures, pressures, and atmospheres. This process eliminates organics, volatile metals, moisture and other low boiling temperature/high vapor pressure components and converts non-volatile waste to more stable metal oxides. Off-gas treatment systems scrub, treat and dispose of all off-gas components. A thermal desorption-type apparatus especially well suited for performing the method of the present invention is also disclosed.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: February 11, 2003
    Assignee: Hanford Nuclear Services, Inc.
    Inventor: Rengarajan Soundararajan
  • Patent number: 6388163
    Abstract: A method for rendering nondetonble energetic materials, such as are contained in or removed from decommissioned ordnance. The energetic materials are either combined with epoxy hardener or are combined with other compounds, preferably amine compounds, to form a substance that functions as an epoxy hardener. According to the invention, energetic materials (including TNT, RDX and Composition B) that are treated according to the invention method yield a reaction product that is non-explosive, that serves to harden or cure conventional epoxy resin to form a stable, nonexplosive waste product. Epoxy hardener made using the method of the invention is also described.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: May 14, 2002
    Assignee: Sandia Corporation
    Inventor: Maher E. Tadros
  • Patent number: 6251058
    Abstract: A method for removal of organic contaminants from solid particulate soil contaminated with the organic contaminants. The method comprises forming an aqueous slurry of a mixture of a hydrophobic adsorbent selected from foamed synthetic materials or natural materials which entrap gas, with the soil in the presence of water. The adsorbent has a density less than water. The slurry is mixed for a period of time, and a gravity separation of the adsorbent from the aqueous admixture thus obtained is effected.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: June 26, 2001
    Assignee: Petrozyme Technologies, Inc.
    Inventors: Owen P. Ward, Ajay Singh, Kate Billingsley
  • Patent number: 6203484
    Abstract: The invention provided relates to the use of polyvinylpyrrolidone-iodine complexes in combination with gelling agents to produce strong disinfectants which not only physically stabilize biohazardous and infectious wastes but also kill pathogens contained in the wastes. The gelling agents include polyacyrlates that are superabsorbents.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: March 20, 2001
    Assignee: BASF Corporation
    Inventors: Anthony Lepore, Siegfried Lang
  • Patent number: 6153809
    Abstract: A polymer coating is applied to the surface of a phosphate ceramic composite to effectively immobilize soluble salt anions encapsulated within the phosphate ceramic composite. The polymer coating is made from ceramic materials, including at least one inorganic metal compound, that wet and adhere to the surface structure of the phosphate ceramic composite, thereby isolating the soluble salt anions from the environment and ensuring long-term integrity of the phosphate ceramic composite.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: November 28, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Dileep Singh, Arun S. Wagh, Kartikey D. Patel
  • Patent number: 6121039
    Abstract: There is provided compositions, methods and apparatus (kits) for treating petroleum and petro-chemical based contaminants within expended filtration components, wherein the filtration components are exposed to a coagulant which forms a solid or gel with the petroleum or petro-chemical based compound when exposed to water to prevent leeching and/or they are exposed to an enzymatic oxidizing medium, such as petroleum digesting bacteria, to decompose the petroleum and petro-chemical based compounds.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: September 19, 2000
    Inventors: William M. Lasky, James H. Cornwell
  • Patent number: 6087548
    Abstract: The invention relates to a disposable assembly for collecting contaminated waste, comprising a heat-stable container (1), for example made of metal, in order to withstand, without deformation, the conditions, particularly the temperature conditions, of a complete sterilization of its contents, and intended for household and/or industrial refuse, and forming a chamber provided with a sealable opening (2) through which the contaminated waste (3) is introduced, and a hot-melt plastic material (11) which is meltable under the conditions, particularly the temperature conditions, of sterilization, and is arranged inside the container (1), with a sufficient mass to enclose the waste (3) in the molten plastic material, the assembly additionally including a permeable cover (15), with a filter (55), sealing the opening (2) of the container (1).
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: July 11, 2000
    Inventors: Alfred Levy, Guy Bettoun
  • Patent number: 6077212
    Abstract: A process for the confinement of generally harmful solid materials is disclosed and claimed. The solid materials are immobilized and confined within a solid matrix for an unlimited storage free from pollution risks. The solid materials are mixed with at least one low condensed, liquid phenolic resin and a cross-linking agent which is selected from partly or wholly sulfonated linear and/or cyclic phenolic oligomers, and the cross-linking which forms said solid matrix under hardening is allowed to occur. When a mould is used for the hardening reaction, solid blocks are formed which are resistant to water, heat, and environmental acids and bases. These blocks need not be stored in a safe environment but can further be used for applications such as construction elements.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: June 20, 2000
    Assignee: Fillger S.A.
    Inventors: Philippe Choquard, Roger JP Lamartine
  • Patent number: 6071043
    Abstract: The invention provides a method for securing waste landfills so as to prevent seepage of fluids into natural formations. A coating composition containing rubber crumb is sprayed onto polymeric liners enclosing the waste so as to encapsulate the ends or seams.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: June 6, 2000
    Inventor: James R. Hunt
  • Patent number: 6010444
    Abstract: A method for containing potentially infectious devices. The potentially infectious devices are deposited in a container which contains a monomer, a reducing agent and water. An oxidizing agent is later added to cause polymerization of the monomer to immobilize the devices, and to act as a disinfecting agent due in large part to the exothermic nature of the reaction. In an alternate embodiment, the composition contains a monomer, a thickener and water. Before use, this solution is admixed with an oxidizing and reducing agent and the thickened solution is poured into a container having disposed therein potentially infectious devices. Related methods, kits, devices, and compositions are also disclosed.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: January 4, 2000
    Assignee: Isolyser Company, Inc.
    Inventors: Travis W. Honeycutt, Baosheng Lee, Dong Dai, Robert S. Woody
  • Patent number: 5993372
    Abstract: A method and apparatus for collection and containment of hydrocarbons that may be spilled or leaked by equipment utilizing an internal combustion engine, transmission or fuel tank prevents pollution of the environment. Hydrocarbons accumulated in a spill collection apparatus are directed to a spill containment device where they are absorbed and solidified into a rubber-like mass. Solidification of hydrocarbons and retaining them within a hydrocarbon impermeable housing prevents them from contaminating the surface below the equipment and facilitates their handling for disposal.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: November 30, 1999
    Inventor: Herbert W. Holland