Composition Containing Nonresinous Organic Material Derived From Municipal Solid Waste Disposal System Or Process Of Preparing Patents (Class 523/129)
  • Patent number: 11465326
    Abstract: A plastic composition consisting essentially of plastic matter, inorganic matter, and organic matter. The plastic composition has a notched izod impact above 12 J/m, a surface energy of at least 40 dyne/cm and, and when the plastic composition is subjected to injection molding, at least one of a tensile strength of above about 2.7 MPa, a tensile modulus of above about 600 MPa, a flexural modulus above about 690 MPa, a flexural strength above about 5.6 MPa, and a Charpy Impact above about 1.5 KJ/m2.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: October 11, 2022
    Assignee: UBQ Materials Ltd.
    Inventor: Yuval Tamir
  • Patent number: 10793646
    Abstract: Admixtures comprising an adhesive resin and cellulose are disclosed, in which at least a portion of the cellulose is type-II cellulose. Also disclosed are compositions comprising adhesive resins, in which the adhesive resins comprise a condensation product of formaldehyde and at least one phenolic compound, and the condensation product is formed in the presence of cellulose, wherein at least a portion of the cellulose is type-II cellulose. Articles of manufacture containing the admixtures and compositions, such as plywood and oriented strand board, are also disclosed. In addition, methods of preparing the compositions and articles of manufacture are disclosed.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 6, 2020
    Assignee: Renmatix, Inc.
    Inventors: Ewellyn A. Capanema, Mikhail Y. Balakshin
  • Patent number: 9695092
    Abstract: The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: July 4, 2017
    Assignee: Anuvia Plant Nutrients Corporation
    Inventors: Jeffrey C. Burnham, James P. Carr, Gary L. Dahms
  • Patent number: 9156745
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition. The controlled release fertilizer composition includes a fertilizer core that is coated with a polymeric layer, such as polyurethane, that includes an organic carbonate additive.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 13, 2015
    Assignee: Koch Agronomic Services, LLC
    Inventors: Garrard L. Hargrove, Sriramakrishna Maruvada
  • Patent number: 8557761
    Abstract: An infused sealant system for providing a sealant infused with a crystal powder and/or essential oil. The infused sealant system generally includes a composition comprised of a sealant infused with a crystal powder. The composition preferably includes one or more essential oils infused within the sealant. The composition is applied as a coating or an adhesive to an object in a liquid state and allowed to dry thereby sealing the crystal powder and/or essential oils within the sealant.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: October 15, 2013
    Inventor: Kathryn L. Keyt
  • Publication number: 20130237633
    Abstract: The subject matter discloses a composite material comprising a first component and a second component, the first component comprising an organic element and a thermoplastic element and the second component comprising at least one element selected from the group consisting of vulcanized rubber and tire cords. The subject matter further discloses a process comprising mixing while heating under shear forces a first component comprising organic waste and thermoplastic waste with a second component comprising at least one element selected from the group consisting of vulcanized rubber and tire cords; to obtain a melt; processing the melt, the processing comprises at least cooling the melt to obtain a composite material comprising: organic element; thermoplastic element; and at least one element selected from the group consisting of vulcanized rubber and tire cords.
    Type: Application
    Filed: July 14, 2011
    Publication date: September 12, 2013
    Applicant: U.B.Q. MATERIALS LTD.
    Inventor: Yuval Tamir
  • Patent number: 8481642
    Abstract: The present invention relates to a process for the preparation of hydrothermal hybrid material, in particular coal-like hybrid material from biomass. The process involves the heating of a reaction mixture comprising water, biomass and a copolymerizable compound, wherein the copolymerizable compound is added when preparing the reaction mixture, in a variant of the process, the biomass is converted to activated biomass in a first step, and the copolymerization of the activated biomass and a copolymerizable compound to give the hydrothermal, preferably coal-like, hybrid material is started by adding a polymerization initiator. The invention also relates to the hydrothermal hybrid materials obtainable by the processes as such, e.g. to aqueous dispersions thereof. By incorporating copolymerizable compounds, e.g. petrochemical compounds in the structure of the hydrothermal hybrid materials, the physical properties of the materials and the preparation process thereof can be controlled.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: July 9, 2013
    Assignee: CSL Carbon Solutions Ltd.
    Inventors: Markus Antonietti, Maria Magdalena Titirici, Rezan Demir Cakan
  • Patent number: 8013029
    Abstract: Disclosed are a mortar for concrete mainly consisting of urethane foam and a method for manufacturing the same, in which urethane foam and Styrofoam used as insulating materials for household electronic appliances and a pre-cast panel are not discarded, but recycled such that the urethane foam and the Styrofoam are mixed with concrete in the construction of flooring of apartments or an ondol of houses. Low weight structure, superior sound-absorption effect and heat insulation effect can be obtained, and cracks are prevented from being generated in the constructed part. Construction work is simplified, and economical efficiency is enhanced. Collected waste urethane foam and waste Styrofoam are pulverized into a size of 1 to 10 mm using a pulverizer. The pulverized urethane foam and Styrofoam are mixed to each other to form urethane foam.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: September 6, 2011
    Inventor: Soon-Ok Shin
  • Patent number: 7825172
    Abstract: Cellulosic or lignocellulosic materials, and compositions and composites made therefrom, are disclosed.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: November 2, 2010
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arthur P. Lagace
  • Patent number: 7816431
    Abstract: Disclosed are composite compositions well suited for forming shaped articles which comprise thermoplastic polymer, cellulose, a coupling agent comprising anhydride moities, and a lubricant comprising an alkyl ester of carboxylic acid. Preferably the lubricant is substantially free of zinc stearate.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: October 19, 2010
    Assignee: Honeywell International Inc.
    Inventors: Richard B. Heath, James E. Garft, Levante E. Koller
  • Patent number: 7709557
    Abstract: Cellulosic or lignocellulosic materials, and compositions and composites made therefrom, are disclosed.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: May 4, 2010
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arther P. Lagace
  • Publication number: 20090149571
    Abstract: A method for receiving animal waste from animal confinements or other concentrated animal waste sources and for converting the waste into a complex hydrocarbon is described. The waste contains both liquids and solids. The method includes separating the liquids and solids into separate waste streams, controlling an amount of moisture in the solids waste stream such that the amount of moisture in the solid waste stream is compatible with a selected energy conversion process, and feeding the moisture controlled solid waste into the energy conversion process. The complex hydrocarbon may be suitable for use as a substitute or additive to petroleum-based asphalt binder.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 11, 2009
    Applicant: Innoventer, Incorporated
    Inventors: Richard P. Lux, Christopher M. Reeves, Gary Eugene Winkler
  • Patent number: 7307108
    Abstract: Cellulosic or lignocellulosic materials, and compositions and composites made therefrom, are disclosed.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: December 11, 2007
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arthur P. Lagace
  • Patent number: 7265169
    Abstract: Adhesive compositions produced from abundant and renewable resources such as lignocellulosic materials, particularly decayed lignocellulosic materials or demethylated lignin. Other components present in particular examples of the adhesive compositions include relatively inexpensive materials, such as borates and/or polyethyleneimine. Also disclosed are lignocellulosic composites that are made from the adhesive compositions.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: September 4, 2007
    Assignee: State of Oregon Acting by and trhough the State Board of Higher Education on Behalf of Oregon State University
    Inventors: Kaichang Li, Xinglian Geng
  • Publication number: 20030022959
    Abstract: Aqueous or solid nitrogen containing compound compounds are produced by heating urea with wet solid sewer sludge thereby producing a urea-urea condensate-sewer sludge composition in a process to dry out the sewer sludge. The urea reacts with itself and with the compounds in the sewer sludge. The urea and/or urea condensate reacts with the sulfur containing compounds thereby reducing the odor from heating the sewer sludge. The urea-urea condensate-sewer sludge composition is useful as a bio-fertilizer, may be utilized to fight grass, forest, building fires, flame retard other flammable organic material by applying it on or incorporating it in these flammable organic materials and may be reacted with aldehydes to produce resins. Carbonization auxiliaries, such as phosphorus containing compounds, metal containing compounds that will accelerate carbonization, heat reflector, surfactant and fillers may be added to or reacted with the aqueous or solid urea-urea condensate-sewer sludge composition.
    Type: Application
    Filed: October 9, 2001
    Publication date: January 30, 2003
    Inventor: David H. Blount
  • Patent number: 6448307
    Abstract: The invention is based on the discovery that texturized cellulosic and/or lignocellulosic materials can be combined with many different matrix materials, including organic matrices (e.g., thermosetting resins, elastomers, asphalts, lignins, or tars) to produce useful compositions.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: September 10, 2002
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arthur P. Lagace
  • Patent number: 6444730
    Abstract: The invention relates to a storable and transportable and optionally utilizable mixture containing vegetable residues and at least one polymer product which absorbs water and/or aqueous liquids. The invention also relates to a process for producing said mixture and to the use thereof.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: September 3, 2002
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Helmut Brueggemann, Wolfgang Huebner
  • Publication number: 20020103273
    Abstract: To provide a plastic material suitable for preservation of the environment and a method for producing the same by adding organic or inorganic sludge to a resin derived from waste plastics to form a flame-retarded resin, an antistatic resin, or a biodegradable resin so that the electrical and physical properties of the resin are improved and sludge and waste plastics are effectively utilized.
    Type: Application
    Filed: October 25, 2001
    Publication date: August 1, 2002
    Inventors: Yasuhito Inagaki, Yuko Fujihira
  • Patent number: 6387386
    Abstract: Controlled release compositions of matter are disclosed comprising complexes for treating a population of one or more aquatic organisms in a column of water. The complexes comprise at least one system wherein the system comprises at least one bioactive agent as a component selected for treating a population of aquatic organisms, at least one carrier component, and at least one coating component for regulating the controlled release rate and release profile of the bioactive agent in water or at least one bioactive agent and one joint-function component that can serve as both a carrier and coating to regulate the controlled release rate and release profile of the bioactive agent in water, with or without optional binder components and/or additional formulation materials. The components are selected to sink or float so that the complexes will permeate and/or remain in any planar or volumetric segment of a water column for a period of time that is sufficient to effectively treat a population of aquatic organisms.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: May 14, 2002
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Publication number: 20020010229
    Abstract: Cellulosic or lignocellulosic materials, and compositions and composites made therefrom, are disclosed.
    Type: Application
    Filed: January 30, 2001
    Publication date: January 24, 2002
    Inventors: Marshall Medoff, Arthur P. Lagace
  • Publication number: 20020005602
    Abstract: A discontinuous lignocellulose fiber is described for use as a reinforcing filler for thermoplastic composite compositions. The fiber filler includes a significant percentage by weight of long, “hair-like” fibers. Specifically, at least about 20 percent by weight of the fiber filler is discontinuous lignocellulose fiber with a fiber length greater than about 15 millimeters and a fiber diameter less than about 0.5 millimeters. A moldable thermoplastic composite composition including the discontinuous lignocellulose fiber comprises about 20 to about 50 percent by weight of the fiber filler and about 50 to about 80 percent by weight thermoplastic. The discontinuous lignocellulose fiber filler yields thermoplastic composite compositions having improved physical properties over basic thermoplastic. The improved physical properties can be achieved without the use of coupling agents, although coupling agents may be used to further enhance the composite properties.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 17, 2002
    Inventor: William W. Jacobsen
  • Patent number: 6258876
    Abstract: Composites of a resin and texturized cellulosic or lignocellulosic fiber, and methods for forming the composites, are disclosed.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: July 10, 2001
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arthur Lagace
  • Patent number: 6207729
    Abstract: Texturized cellulosic or lignocellulosic materials, and compositions and composites made therefrom, are disclosed.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 27, 2001
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arthur Lagace
  • Patent number: 6169128
    Abstract: By employing the present invention, a process for manufacturing products from discarded rubber and plastic material is achieved wherein compositions of vulcanized rubber and thermoplastic polymers, particularly those of the olefinic branch, are intermixed with a bonding agent to produce a processable compound having a combination of unique and unexpected properties. In the present invention, a unique bonding agent comprising a combination of ethylene co-polymers, ethylene-octane and acrylic acid is employed. By employing this bonding agent with the rubber particular and thermoplastic material, all of the prior art drawbacks are eliminated and a unique, desirable, highly useful composition is produced.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: January 2, 2001
    Assignee: Poly-Typlax Technology Div. of R.W. Technology, Inc.
    Inventor: Jean Vivaudou
  • Patent number: 6013684
    Abstract: There is disclosed a method for recycling a cured phenolic resin by (a) heating a cured phenolic resin to form a thermal decomposition product having a residue, (b) separating said residue from said thermal decomposition product, (c) pulverizing said separated residue to obtain a carbide powder and molding said carbide powder alone or in combination with a binder into a molded article, and/or (d) gelling and drying said separated thermal decomposition product thereby molding it into a molded article. By the method, the present invention realizes efficient recycling of a cured phenolic resin which can become a massive waste into a useful material.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: January 11, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Suzuki, Takayoshi Ueno, Hiroshi Onishi, Yukiyoshi Ono
  • Patent number: 6001382
    Abstract: Controlled release compositions of matter are disclosed comprising complexes for treating a population of one or more aquatic organisms in a column of water. The complexes comprise at least one system wherein the system comprises at least one bioactive agent as a component selected for treating a population of aquatic organisms, at least one carrier component, and at least one high molecular weight organic plasticizer coating component for regulating the controlled release rate and release profile of the bioactive agent in water or at least one bioactive agent and one joint-function component that can serve as both a carrier and coating to regulate the controlled release rate and release profile of the bioactive agent in water, with or without optional binder components and/or additional formulation materials.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: December 14, 1999
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Patent number: 5990196
    Abstract: The present invention provides a ground surface structure for prevention of weed growing. The structure includes a germination-preventing sheet (2) resistant to penetration of buds of a plant and laid over the surface of a selected ground (1). The structure also includes a surface layer (3) formed by accumulating a water-repellent earth material on the germination-preventing sheet (2). The earth material includes material grains formed with silicone coating. Typically, the germination-preventing sheet (2) is made of a nonwoven fabric material and resistant to penetration of buds of a plant. Further, the sheet blocks the passage of light, but exhibits water permeability and air permeability.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: November 23, 1999
    Assignees: Yoshiyuki Naoi, Kazumi Toushin
    Inventor: Kazumi Toushin
  • Patent number: 5977193
    Abstract: .epsilon.-Caprolactam is continuously recovered from carpet made from nylon 6 face fibers and a backing. The carpet is fed to a separator to prepare scrap containing nylon 6 and auxiliary materials. The scrap from the separator is fed to a depolymerizing reactor to produce an .epsilon.-caprolactam containing distillate and more auxiliary materials. The .epsilon.-caprolactam in the distillate is separated from other volatiles and purified. The auxiliary materials are also recovered or re-used.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: November 2, 1999
    Assignee: BASF Corporation
    Inventors: Thomas F. Corbin, Alan C. Handermann, Richard Kotek, William D. Porter, Jack A. Dellinger, Edward A. Davis
  • Patent number: 5973035
    Abstract: Composites of a resin and texturized cellulosic or lignocellulosic fiber, and methods for forming the composites, are disclosed.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: October 26, 1999
    Assignee: Xyleco, Inc.
    Inventors: Marshall Medoff, Arthur Lagace
  • Patent number: 5859236
    Abstract: The method of the invention involves treating cellulosic vegetable matter (the "Feed Stocks") for the selective recovery of lignin (when present in the feed-stock), cellulose and hemicelluloses by: (1) reducing the material to be processed to an appropriate size; (2) adjusting the moisture content of the ligno-cellulosic feed stock to 15 percent to 30 percent water; (3) impregnating the ligno-cellulosic feed stock with an extraction liquor containing a glycol and an organic or Lewis acid; (4) rapid heating of said impregnated feed stock to a temperature of about 118.degree. C. to about 145.degree. C.; (5) maintaining the desired temperature for about 1 minute to about 6 minutes to solubilize the lignin therefrom (a period of about 2 minutes to about 5 minutes is preferred); (6) stopping the reaction immediately by lowering the temperature to <100.degree. C.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: January 12, 1999
    Inventor: Leonard Burkart
  • Patent number: 5788867
    Abstract: This invention relates to processes for modifying the flow characteristics of slurries, particularly mineral slurries such as red mud from the Bayer process, using water-soluble polymeric emulsions to increase the slurries' angle of repose.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: August 4, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Stephen Charles Pearson
  • Patent number: 5656674
    Abstract: The invention manufactures mechanical strong objects from a mixture of a plurality of fractions, which together have a high filling grade by accommodating them in plastic, preferably a thermosetter of the low viscosity type. The plastic is preferably resistant against leaching as defined in the Concept Bouwstoffenbesluit, when pollutions in the fractions are present. Finally the invention gives objects with good mechanical properties at low cost price, because of the relatively small use of plastic (to only 8 volume % or less) and the favorable mechanical properties of strongly densified waste, residual or filler materials. Coloring of the objects is possible and the surface can be very smooth. Fibres or residues of fibres containing waste materials can improve the obtained products still further.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: August 12, 1997
    Assignee: Terra Ijssel B.V.
    Inventor: Harm Willem Holman
  • Patent number: 5545485
    Abstract: A biodegradable resin molded article molded from a kneaded material obtained by kneading, melting or mixing a biodegradable resin raw material and at least one of a biodegradable additive and an additive made of a substance existing in the nature, an injection molded article of a biodegradable resin containing a biodegradable resin and an anti-biotic substance, a molded article of a resin composition including a polymer material having an ester bond in the polymer main chain thereof and an alkali or acid component in an amount effective for neutralizing an acidic or alkaline component contained in the polymer material, and a resin molded article having a layer of a biodegradable resin, and a layer of a photolytic resin covering the resin layer and containing an antibiotic.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: August 13, 1996
    Assignee: Fujitsu Limited
    Inventors: Takafumi Hashitani, Shozo Fujita, Makoto Iijima, Koji Asano
  • Patent number: 5412025
    Abstract: The present invention relates to a process to in-situ reactor-fill polyolefins. More specifically, the instant invention provides a process to reactor-fill polyolefins comprising the steps of (a) adding a sufficient amount of alpha-olefin to a filler prior to using the filler for in-situ polymerization; (b) prepolymerizing the mixture of step (a) by contacting the treated filler in random order of no specific sequence with a high activity polymerization catalyst, a cocatalyst, and, if necessary a cocatalyst modifier; and (c) adding an alpha-olefin under olefin polymerization reaction conditions to the reaction product of step (b) to form a reactor-filled composite. The prepolymerization step results in the formation of a sticky prepolymer on the surface and in the pores of the filler.The present invention further relates to reactor-filled polyolefin composites obtained from the process of the present invention.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: May 2, 1995
    Assignee: Quantum Chemical Corporation
    Inventor: Richard W. Fries
  • Patent number: 5384343
    Abstract: A water absorbing particulate polymer material wherein the polymer material when in dry powder form has a particle size of about 50 .mu.m to about 500 .mu.m and wherein the particles consist of internally bonded finer particles which finer particles have a size below 50 .mu.m. The process of using the water absorbing polymer, material to convert a wet sticky mass of inorganic particulate such as coal fines into a crumbly or flowable solid. A process using a water absorbing particulate polymer material to convert a wet sticky mass of organic particulate material into a crumbly or flowable solid wherein the organic matter can be, for example, food waste or sewage.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: January 24, 1995
    Assignee: Allied Colloids Limited
    Inventors: David Farrar, Peter Flesher, Malcolm Skinner, John Clarke, David Marshall
  • Patent number: 5312858
    Abstract: A construction article manufactured from recycled waste materials is provided which efficiently utilizes a variety of ordinary refuse materials in providing a high-strength article. The article may be constructed of either ash as well as unburnt material filler and tack combined with a plastic binder, or alternatively metal, glass, paper and cloth may constitute the filler to be combined with the plastic binder. The plastic binder may be of a variety of polymers which may be melted to fuse the waste material together. The article is preferably provided with complimentary recesses and projections on opposite sides whereby similar articles may be combined to interlock with one another and bonded by the use of an organic solvent.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: May 17, 1994
    Inventor: Virgil Folsom
  • Patent number: 5252614
    Abstract: This invention reveals a process for recovering polyethylene terephthalate flakes from a recycle stream containing polyethylene terephthalate flakes and polyvinyl chloride flakes which comprises: (1) treating the recycle stream with (a) at least one inorganic base selected from the group consisting of sodium hydroxide and potassium hydroxide and (b) at least one nonionic surfactant under conditions and for a time sufficient to decrease the contact angle of the polyethylene terephthalate flakes with water below a value of 25.degree. while maintaining the contact angle of the polyvinyl chloride flakes above a value of about 45.degree.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: October 12, 1993
    Assignee: Shell Oil Company
    Inventor: Edwin A. Sisson
  • Patent number: 5250586
    Abstract: A composition including an oil and particles of a solid, water soluble flocculant polymer substantially immiscible with the oil provides ready dispersibility of the polymer in aqueous fluids. Desirably, the composition is substantially free of surfactants, the polymer particles have a mean particle size less than about 100 microns and preferably less than about 20 microns and the polymer particles are substantially dry.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: October 5, 1993
    Inventor: Clyde S. Scanley
  • Patent number: 4828761
    Abstract: A process for impregnating cementitious solids with polymeric materials by blending polymeric materials in a grout, allowing the grout to cure, and contacting the resulting solidified grout containing the polymeric materials with an organic mixture containing a monomer, a cross-linking agent and a catalyst. The mixture dissolves the polymerized particles and forms a channel for distributing the monomer throughout the network formed by the polymeric particles. The organic components are then cured to form a substantially water-impermeable mass.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: May 9, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Alfred J. Mattus, Roger D. Spence
  • Patent number: 4795764
    Abstract: Air is mechanically entrained in an aqueous solution of surfactant, polyamine reactant, and low moisture sensitive poly(oxyalkylene) poly(aliphatic isocyanate) prepolymer the poly(oxyalkylene) portion of which contains sufficient oxyethylene units to render the prepolymer water-soluble and hydrophilic, to form a fluid, water-based, air foam which is sprayed or otherwise applied to exposed surface of a substrate, such as a body of hazardous material, the applied foam gelling or increasing in viscosity, due to reaction of the polyisocyanate prepolymer with the polyamine in the presence of the water to form a poly(oxyalkylene) polyurea polymer containing polyurylene-containing segments formed from the reaction, and forming a persistent gelled air foam or viscous air foam in the form of a coating on the exposed surface, thus sealing or otherwise protecting or controlling the substrate.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: January 3, 1989
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Roger R. Alm, Irvin F. Dunsmore, Richard M. Stern
  • Patent number: 4623499
    Abstract: A method for manufacturing shaped articles of organic substance is disclosed, which comprises mixing an organic substance as raw material with a binder, filling a die with the resultant binder-containing mixture, compressing the mixture in a prescribed shape in the die, and forcing a gaseous curing agent through the compressed mixture thereby curing the binder in the mixture and consequently solidifying the compressed mass. This method enables shaped articles such as noise absorbers, heat insulation panels, and plate materials to be produced efficiently and inexpensively at low energy consumption by the use of an inexpensive die.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: November 18, 1986
    Assignees: Nihon Sekiso Kogyo Co., Ltd., Sintokogio Ltd.
    Inventors: Toyoji Fuma, Kazuyuki Nishikawa, Naoshi Makiguchi, Katsuya Nagano, Yoshio Nakayama, Hiroyuki Sasaki
  • Patent number: 4495310
    Abstract: A method of forming a urethane prepolymer comprising the steps of gradually adding an isocyanate compound to a hydrophilic polyether or polyester compound without substantial added mixing whereby a relatively dense isocyanate layer and a polyether or polyester layer overlying the isocyanate layer are formed, and a urethane prepolymer-forming reaction occurs at the interface between the layers. The resulting urethane prepolymer may be reacted with water to form a cellular urethane polymer, or with an aqueous slurry of unconsolidated aggregate material to form a consolidated aggregate product, such as a plant growth supporting rooting medium.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: January 22, 1985
    Assignee: Gravi-Mechanics Co.
    Inventor: Richard R. Dedolph
  • Patent number: 4454259
    Abstract: The instant invention is directed to a process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting(A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with(B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50.degree. C. with complete denaturing of component (A).
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: June 12, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Artur Reischl, Kuno Wagner
  • Patent number: 4396733
    Abstract: The present invention relates to new azulmic acids stabilized by condensation with carbonyl compounds, several processes for their preparation and their use for various purposes.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: August 2, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kuno Wagner, Kurt Findeisen
  • Patent number: 4393166
    Abstract: The instant invention is directed to a process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting(A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with(B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50.degree. C. with complete denaturing of component (A).
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: July 12, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Artur Reischl, Kuno Wagner