Treating Polymer Derived From Hydrocarbon Monomers Only Patents (Class 521/47)
  • Patent number: 10961367
    Abstract: Processes for recycling polystyrene waste. The processes can comprise dissolving the polystyrene waste in ethylbenzene under conditions to obtain a polystyrene/ethylbenzene mixture, adding the polystyrene/ethylbenzene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 30, 2021
    Assignee: POLYSTYVERT INC.
    Inventor: Roland Côté
  • Patent number: 10954354
    Abstract: A dynamic process for upcycling polymers. Polymers from a diverse post-consumer waste stream are gathered in a mixture. The mixture is extruded and combined with a liquid additive containing a particular PE wax at the verge of polymerization. The liquid additive is repolymerized into LDPE to form pellets. The pellets are delivered into a reactor and submerged in a suitable solvent to dissolve the LDPE. Causing a gradual and orderly separation of the remaining polymers from one another, resulting in a layered substrate. The suitable solvent, enzymes or depolymerizing compatible chemical is delivered into the reactor through independent pipes attached to tanks containing the suitable depolymerizing agent. The process repeats depolymerizing the layered substrate layer by layer with additional suitable solvents/enzymes or depolymerizing agents for each of the polymers resulting in the dissolving of the remaining polymers in an orderly manner producing a layered wax-like material for upcycling.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: March 23, 2021
    Inventor: Manuel Rendon
  • Patent number: 10934410
    Abstract: Disclosed is a method for recycling polyolefin containing waste by using a solvent with a specific Hansen parameter and contacting this mixture with a liquid filtration aid before separating the polyolefin from the mixture. The method includes the steps of mixing the polyolefin containing waste with a solvent having a Hansen parameter ?H from 0.0 to 3.0 MPa1/2; contacting this mixture with a liquid filtration aid having a Hansen parameter ?H>4.0 MPa1/2; and separating the polyolefin from the mixture.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Andreas Mäurer, Martin Schlummer, Fabian Knappich, Tanja Fell, Arthur Berrang
  • Patent number: 10774193
    Abstract: The present invention relates to a method of continuously recycling thermoset plastic waste. The method includes crushing the thermoset plastic waste into pieces with a diameter size suitable for being fed into an extruder. The method also includes purifying the thermoset plastic waste by cleaning the thermoset plastic waste using a cleaning agent to remove contaminants from the thermoset plastic waste. The method also includes extruding the thermoset plastic waste by using supercritical solvent.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: September 15, 2020
    Inventors: Kai Li, Tik Ho Lau, Ho Yin Fong
  • Patent number: 10717903
    Abstract: The present disclosure relates to a composition and methods of making an adhesive from polystyrene, a terpene, and water.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: July 21, 2020
    Assignee: Blockhead Innovations, LLC
    Inventors: Michelle Yepez, Sindhu Bala, Ellie Englund, Julianna Jones, Sydney Gralike, Reagan Mattison, Caroline Sluss, Christina Yepez, Claire Sackman
  • Patent number: 10689500
    Abstract: Described herein are depolymerized polystyrene resins derived from polystyrene source resins. The depolymerized polystyrene resins undergo a depolymerization in which chemical bonds are cleaved, producing depolymerized polystyrene resins of lower molecular weight. The polystyrene resins may be modified by chemical reaction with monomers, polymers, and oligomers, such as acrylates thereof. Also described are ink and coating compositions that include the depolymerized and modified polystyrene resins.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: June 23, 2020
    Assignee: Sun Chemical Corporation
    Inventors: Michael J. Jurek, John G. Tiessen, Soichiro Omizu, Juanita M. Parris
  • Patent number: 10597507
    Abstract: An improved method forms and employs a wax to modify asphalt. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a polymer-modified asphalt. The addition of wax reduced the mixing time necessary to achieve improved polymer dispersion compared to the control formulation modified bitumen and reduced the viscosity of the neat bitumen. Pre-polymer addition of wax is detrimental to most properties of the resulting modified asphalt. Post-polymer addition improved viscosity reduction, higher softening point and improved dimensional stability.
    Type: Grant
    Filed: August 11, 2018
    Date of Patent: March 24, 2020
    Assignee: GreenMantra Recycling Technologies Ltd.
    Inventors: Domenic DiMondo, Chris Guillon
  • Patent number: 10479875
    Abstract: The present invention relates to a process for the treatment of a composition comprising thermoplastics comprising introducing the composition into a reactor under reduction of oxygen content of the atmosphere, heating the composition in the presence of a solvent to liquefy the thermoplastics, separating insoluble fractions and recovering the liquefied thermoplastics which process is conducted in one reactor.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: November 19, 2019
    Assignee: SOLVAY SA
    Inventors: Stéphane Streiff, Dominique Balthasart, Armin T. Liebens, Gérard Antonini
  • Patent number: 9896582
    Abstract: An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.
    Type: Grant
    Filed: June 15, 2014
    Date of Patent: February 20, 2018
    Assignee: LEHIGH TECHNOLOGIES, INC.
    Inventors: Premnathan Naidoo, Vernon Patrick Keating
  • Patent number: 9845279
    Abstract: In this invention, a portion of the products from a pyrolysis reactor are reacted in a process to form one or more chemical intermediates.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: December 19, 2017
    Assignee: ANELLOTECH, INC.
    Inventors: Terry Mazanec, Eugene Schmelzer, Fred Pesa, Dennis McCullough, Ruozhi Song, Yu-Ting Cheng
  • Patent number: 9617424
    Abstract: An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.
    Type: Grant
    Filed: June 15, 2014
    Date of Patent: April 11, 2017
    Assignee: LEHIGH TECHNOLOGIES, INC.
    Inventors: Premnathan Naidoo, Vernon Patrick Keating
  • Patent number: 9358547
    Abstract: The present invention concerns a method for processing and detoxification of a material, especially a thermoplastic material, and for removal of contaminants or impurities from this material, wherein the material is heated under vacuum in at least one receiving tank (1), mixed and possibly comminuted, and wherein a rinsing medium is introduced into the receiving tank (1) beneath the material level, conducted through at least a partial region of the material, and the rinsing medium enriched or saturated with contaminants is brought out from the receiving tank (1) once more.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: June 7, 2016
    Assignee: EREMA ENGINEERING RECYCLING MASCHINEN UND ANLAGEN GESELLSCHAFT M.B.H.
    Inventors: Manfred Hackl, Klaus Feichtinger, Gerhard Wendelin, Georg Weigerstorfer, James Donaldson
  • Patent number: 8993644
    Abstract: Methods of reclaiming plastic from plastic medical waste containers containing medical waste and manufacturing recycled medical devices are described. Recycled medical devices made from plastic medical waste containers containing medical waste are also described.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 31, 2015
    Assignee: Becton, Dickinson and Company
    Inventor: Richard Ji
  • Publication number: 20150065589
    Abstract: This invention pertains to compositions and processes suitable for recycling post-consumer carpet tiles that comprise poly(trimethylene terephthalate) fibers and thermoplastic polyolefin backings. The compositions disclosed herein comprise poly(trimethylene terephthalate) and thermoplastic polyolefins, compositions which may or may not be mineral filled. Strong tough articles can be prepared by molding or extrusion of typical commercially available carpet tiles when combined with additional amounts of thermoplastic polyolefin, whether filled or unfilled.
    Type: Application
    Filed: April 19, 2013
    Publication date: March 5, 2015
    Applicant: E I Du Pont de Nemours and Company
    Inventors: Geraldine M. Lenges, Paul A. Colose, II
  • Publication number: 20150005401
    Abstract: The invention relates to a solvent-based separation method for the total material recycling of materials used in nonwoven, woven, and tufted wares into the individual material components thereof sorted by type. At least one of the materials contains a polyolefin wax. As a solvent and/or swelling agent, halogen-free, aliphatic hydrocarbons or aromatic hydrocarbons or a mixture of one or several of said solvents are used.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 1, 2015
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Timo Herrlich, Christian Steib, Gerd Hohner
  • Patent number: 8883867
    Abstract: Compositions containing a turpentine liquid and methods are disclosed for dissolving, dissolving via melting, selectively dissolving via melting, decomposing plastic comprising a chlorine-containing polymer or thermosetting polymer, and/or co-dissolving plastic with fossil fuel for purifying, separating, recovering or recycling plastic-containing material.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: November 11, 2014
    Assignee: Green Source Holdings LLC
    Inventors: Liang-tseng Fan, Shahram Reza Shafie
  • Publication number: 20140316018
    Abstract: An object of the present invention is to provide titanium oxide granules that have a novel structure and have a characteristic of highly efficient decomposing capability, and a method of decomposing plastic and organic waste by using the granules. The present invention has been completed based on the finding that a method of decomposing plastic waste by using titanium oxide granules having a transition metal and/or a transition metal oxide, in particular copper, supported thereon enables decomposition of plastic waste at extremely high efficiency in a low-temperature region for a long period of time as compared to methods of decomposing plastic waste by using the related-art titanium oxide granules.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 23, 2014
    Inventors: Hiromitsu Shimizu, Itsushi Kashimoto
  • Patent number: 8865781
    Abstract: A method of processing waste carpet or matting material to separate constituent materials thereof, includes optionally drying the material and then cooling the material to a temperature at which at least one constituent material therein is embrittled. A mechanical force is applied to the cooled material causing the embrittled constituent material to break into fragments. Optionally, the material from the previous step is dried. The material is then separated to separate the fragments of constituent material from other constituent material. The carpet material can be initially shredded into coarse pieces. The procedure may be repeated optionally with different temperatures to selectively embrittle and fragment different components and facilitate their separation.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: October 21, 2014
    Assignees: Haydale Limited, Desso Group BV
    Inventor: Ian Walters
  • Publication number: 20140303268
    Abstract: Compositions and processes for development of sustainable materials based upon a method of thermoplastic polymer recycling with a solvent that is also a monomer for renewable polymer synthesis. By combining petroleum-derived polymers with bio-based monomer feedstocks, biphasic, blended polymer products are produced and are shown to exhibit facile tunability of physical and material properties. This one-pot, solvent-based recycling approach yields neat recycled products without the use of solvent evaporation or solute precipitation, and the functional utility of the resulting polymer blends greatly exceeds that of either homopolymer alone.
    Type: Application
    Filed: March 11, 2014
    Publication date: October 9, 2014
    Applicant: POLY6 TECHNOLOGIES,INC.
    Inventor: Keith Hearon
  • Publication number: 20140220280
    Abstract: The present disclosure relates to a process for recycling of plastic waste comprising: segregating plastic waste collected from various sources followed by cleaning of the segregated plastic waste to obtain segregated cleaned waste; grinding of the segregated cleaned waste to obtain grinded waste; introducing the grinded waste into an extrusion line having a venting extruder component as part of the extrusion line, to obtain molten plastic; and removing the impurities by vacuum venting of the molten plastic to obtained recycled plastic free from impurities. The present disclosure further relates to various articles like Industrial Post Recycled (IPR) plastic tubes, blow moulded bottles, pallates, manufactured from the recycled plastic waste.
    Type: Application
    Filed: June 19, 2012
    Publication date: August 7, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Natarasan Sethu, Chandrashekhar Ramchandra Abhyankan, Mrinal Kanti Banerjee
  • Patent number: 8653150
    Abstract: The present invention relates to a method for decomposing, in the presence of subcritical water, a thermosetting resin comprising a polyester moiety and a crosslinking moiety therewith to provide a compound comprising an acid residue derived from the polyester moiety and a residue derived from the crosslinking moiety, and collecting the compound in an efficient yield, specifically, which comprises steps of: (I) decomposing the thermosetting resin in the presence of subcritical water to provide a solid comprising a compound comprising an acid residue derived from the polyester moiety and a residue derived from the crosslinking moiety, (II) subjecting the solid to an organic solvent to dissolve the compound into the organic solvent, wherein the organic solvent has a higher solubility which can dissolve the compound than that of water, and (III) collecting, separating or isolating the compound from the organic solvent.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: February 18, 2014
    Assignees: Panasonic Corporation, International Center for Environmental Technology Transfer
    Inventors: Takumi Izumitani, Takaharu Nakagawa, Masaru Hidaka, Keishi Shibata, Junko Matsui
  • Patent number: 8633256
    Abstract: A process for creating polyolefin blends from waste streams with controlled rheological properties can include processing a waste stream to make a mixture comprising a mixture comprising polypropylene and polyethylene and compounding the mixture with one or more peroxides or nitroxides to produce a polyolefin blend. For example, a process can include: determining the required melt flow rate of the end product; determining the ratio of polyethylene to polypropylene to achieve the required melt flow rate; effecting a separation of polypropylene from polyethylene to achieve the desired composition; determining the amount of peroxide or peroxide concentrate required to increase the melt flow rate to the required level; melt compounding the mixture; evaluating the melt flow rate of the product; and adjusting the composition of polyethyelene and polypropylene or the amount of peroxide added if necessary to achieve the required melt flow rate.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: January 21, 2014
    Assignee: MBA Polymers, Inc.
    Inventors: Brian L. Riise, Hyung Baek
  • Patent number: 8580388
    Abstract: The instant invention provides a composition suitable for stretch hood, method of producing the same, and articles made therefrom. The article according to the present invention comprises a multi-layer film according to the present invention has a thickness of at least 3 mils comprising at least one inner layer and two exterior layers, wherein the inner layer comprises at least 50 weight percent polyethylene copolymer having a melt index less than 2 grams/10 minutes, a density less than or equal to 0.910 g/cm3, a total heat of fusion less than 120 Joules/gram and a heat of fusion above 115° C. of less than 5 Joules/gram, the total heat of fusion of the inner layer less than the heat of fusion of either of the two exterior layers, and wherein the multi-layer film has an elastic recovery of at least 40% when stretched to 100% elongation.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: November 12, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Prashant Mandare, Gregory Bunker, Rajen M. Patel, Yi Jin, Selim Bensason, Mehmet Demirors, Theresa J. Hermel-Davidock, Sarah M. Hayne, Jose E. Ruiz
  • Patent number: 8557882
    Abstract: A method for preparing contaminated plastics ground into flakes, such as RPET or such polymers, having at least decontamination and SSP treatment steps, with at least one reactor, with heating to the process temperature taking place essentially outside the reactor. Also, a device for carrying out the method, and having at least one decontamination reactor and at least one SSP reactor, a device for heating plastic flakes to the process temperature being arranged upstream of the decontamination reactor. Also an SSP reactor having at least two individual reactors, and preferably between 3 and 7 individual reactors.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 15, 2013
    Assignee: Krones AG
    Inventors: Thomas Friedlaender, Thomas Rieckmann, Frank Marx
  • Patent number: 8546455
    Abstract: The invention relates to a method of solubilizing expanded polystyrene (EPS), in which the EPS is brought into contact with at least one initial solvent, enabling the transition of the EPS from an expanded solid state to the gel state. The aforementioned gel is subsequently treated with at least one complementary solvent that is different from the initial solvent, enabling the solubilization thereof such as to produce a true solution. The invention also relates to the product thus obtained and to the use of said product.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 1, 2013
    Assignee: Eska
    Inventors: Franck Poutch, Pierre Dalet, José Alcorta
  • Patent number: 8536238
    Abstract: A process for the preparation of thermal insulation sheets fashioned from certain unseparated mixtures of post-consumer plastic articles is disclosed. The mixtures of such articles contain polyethylene terephthalate (PET) and polystyrene (PS) and optionally also articles made of high density polyethylene (HDPE). An unseparated mixture of such articles is provided. This mixture is crushed and shredded to form plastic flakes, and these plastic flakes are then homogenized. Homogenization of the flakes can be carried out either by melt-blending them or by further comminution to produce very fine particles of the mixed plastics. The resulting homogenized mixture of plastic types is then compression molded into sheets.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: September 17, 2013
    Assignee: King Abdulaziz City for Science and Technology
    Inventor: Fares D. Alsewailem
  • Publication number: 20130237620
    Abstract: Compositions containing a turpentine liquid and methods are disclosed for dissolving, dissolving via melting, selectively dissolving via melting, decomposing plastic comprising a chlorine-containing polymer or thermosetting polymer, and/or co-dissolving plastic with fossil fuel for purifying, separating, recovering or recycling plastic-containing material.
    Type: Application
    Filed: September 6, 2011
    Publication date: September 12, 2013
    Applicant: GREEN SOURCE ENERGY LLC
    Inventors: Liang-tseng Fan, Shahram Reza Shafie
  • Patent number: 8530531
    Abstract: Method for the recycling of polyvinyl butyral based on obtaining recycled polyvinyl butyral (PVB) from laminated glass which is shattered and the polyvinyl butyral (PVB) is separated. The sheet obtained is cut into pieces and cleaned to eliminate dirt and foreign matter. The solid state PVB is subjected to a first polyvinyl butyral (PVB) purification stage with a chemical treatment with a first reagent and a final chemical treatment with a second reagent. The obtained purified polyvinyl butyral is suitable to be used in the manufacture of laminated glass.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: September 10, 2013
    Assignee: L'Urederra Fundacion para el Desarrollo Technologico y Social
    Inventors: Claudio Fernández Acevedo, Luis Martínez de Morentín Osaba, Edurne Osés Arteta, Germán Medina Herrera, María Antonia Fernández Fernández
  • Publication number: 20130231408
    Abstract: Embodiments of the present invention are directed to solid surface sheets and methods of making solid surface sheets, wherein the method comprises dissolving post-consumer recycled polystyrene in a first liquid resin precursor to form a blend, solidifying the blend via curing, grinding the solidified blend into recycled particles, adding the recycled particles and filler into a second liquid resin precursor to produce a solid surface precursor, and molding and curing the solid surface precursor to produce the solid surface sheet.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 5, 2013
    Applicant: The Diller Corporation
    Inventors: Kevin O'Brien, Dave Swenson
  • Publication number: 20130225702
    Abstract: The present invention relates to construction material obtained by recycling fire-resistant Styrofoam waste, and to a method for preparing same. The present invention relates to recycled construction material made from fire-resistant Styrofoam waste, which is prepared by: mixing water, liquid soap, and a mixture consisting of 2 to 8 wt % of fire-resistant Styrofoam waste, 50 to 70 wt % of cement, 20 to 30 wt % of steel sludge, and 5 to 10 wt % of pearlite; and injection-molding or compression-molding the resultant mixture.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 29, 2013
    Inventor: Dongkook Jang
  • Patent number: 8507581
    Abstract: A stone based copolymer substrate includes calcium carbonate (CaCO3) from approximately fifty to eighty-five percent (50-85%) by weight and varying in size generally from 1.0 to 3.0 microns, high-density polyethylene (HDPE) from approximately two to twenty-five percent (2-25%) by weight and a biopolymer from approximately two to twenty-five percent (2-25%) by weight. The substrate may include a biodegradation additive from approximately three fourths of a percent to two percent (0.75-2%) by weight. By selectively adjusting the ranges of the substrate's components, various products can be made to replace current tree-based and plastic-based products. The substrate can be configured to be tear proof, water proof, fade resistant and fire retardant while utilizing less energy and producing less waste during its manufacture. In an exemplary embodiment of the invention, the stone used in the substrate includes limestone.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: August 13, 2013
    Assignee: Green Folks & MacLeod, LLC
    Inventor: Mathew D. MacLeod
  • Patent number: 8466205
    Abstract: The present invention pertains to carpet and methods of making and recycling carpet. In one aspect, the carpet includes: a primary backing which has a face and a back surface; a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing; an adhesive composition backing; and an optional secondary backing adjacent to the adhesive backing. The method of making carpet includes extrusion coating the adhesive composition onto the back surface of a primary backing to form the adhesive composition backing. The method of recycling carpet can recover one or more polymeric carpet components.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: June 18, 2013
    Assignee: Columbia Insurance Company
    Inventors: Jeffrey Wright, Kellie Ballew
  • Patent number: 8394866
    Abstract: A method for preparing contaminated plastics ground into flakes, such as RPET or such polymers, having at least decontamination and SSP treatment steps, with at least one reactor, with heating to the process temperature taking place essentially outside the reactor. Also, a device for carrying out the method, and having at least one decontamination reactor and at least one SSP reactor, a device for heating plastic flakes to the process temperature being arranged upstream of the decontamination reactor. Also an SSP reactor having at least two individual reactors, and preferably between 3 and 7 individual reactors.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: March 12, 2013
    Assignee: Krones AG
    Inventors: Thomas Friedlaender, Thomas Rieckmann, Frank Marx
  • Publication number: 20130046034
    Abstract: A process for creating polyolefin blends from waste streams with controlled rheological properties can include processing a waste stream to make a mixture comprising a mixture comprising polypropylene and polyethylene and compounding the mixture with one or more peroxides or nitroxides to produce a polyolefin blend. For example, a process can include: determining the required melt flow rate of the end product; determining the ratio of polyethylene to polypropylene to achieve the required melt flow rate; effecting a separation of polypropylene from polyethylene to achieve the desired composition; determining the amount of peroxide or peroxide concentrate required to increase the melt flow rate to the required level; melt compounding the mixture; evaluating the melt flow rate of the product; and adjusting the composition of polyethyelene and polypropylene or the amount of peroxide added if necessary to achieve the required melt flow rate.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 21, 2013
    Applicant: MBA POLYMERS, INC.
    Inventors: Brian L. Riise, Hyung Baek
  • Publication number: 20120322901
    Abstract: A process for removing a contaminant from post consumer recycled (PCR) plastic is disclosed, the process comprising the steps of comminuting the PCR, to prepare particles having a particle size from about 0.001 inch to about 0.15 inch, wherein the PCR plastic is not polyethylene terephthalate; and driving the contaminant out of the plastic particles by causing the contaminant to diffuse out of the plastic particles.
    Type: Application
    Filed: February 18, 2011
    Publication date: December 20, 2012
    Inventor: Donald W. Hayward
  • Patent number: 8334326
    Abstract: The invention relates to a method for adjusting the pH value and/or for neutralizing acid and/or basic compounds, in particular degradation or decomposition products, as part of the reprocessing and recycling of in particular thermoplastic materials, in the course of which the polymer particles are permanently moved and heated in a reactor, wherein at least one filler is added for neutralization purposes, specifically in a quantity which corresponds at least to the anticipated acid or alkali load.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 18, 2012
    Assignee: Erema Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Klaus Feichtinger, Manfred Hackl, Gerhard Wendelin
  • Patent number: 8318895
    Abstract: A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: November 27, 2012
    Assignee: Evonik Stockhausen, LLC
    Inventors: Gonglu Tian, Scott J. Smith, Janet Pate-Linton
  • Patent number: 8314206
    Abstract: In one embodiment, a block copolymer-containing composition includes PS-b-PXVP and a lithium salt, where “X” is 2 or 4. All lithium salt is present in the composition at no greater than 1 ppm by weight. In one embodiment, a homogenous block copolymer-including comprising has PS-b-PXVP present in the composition at no less than 99.99998% by weight, where “X” is 2 or 4. Methods of forming such compositions are disclosed.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: November 20, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Scott Sills
  • Patent number: 8309682
    Abstract: A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: November 13, 2012
    Assignee: Evonik Stockhausen, LLC
    Inventors: Gonglu Tian, Scott J. Smith, Janet Pate-Linton
  • Publication number: 20120178322
    Abstract: A coated fabric with a first fabric layer having a first surface and a second surface, wherein the first fabric layer is comprised of a first polymer, and a first coating layer that is disposed on at least a portion of the first surface of the first fabric layer, wherein the first coating layer is comprised of the first polymer is disclosed. Fabricating the coated fabric can comprise providing a fabric, and applying or bonding at least a portion of a polymeric layer onto at least a portion of a first surface. The coated fabrics can advantageously serve as a protective barrier against natural elements with a long service life. One of more coated fabrics can act as a barrier to prevent seepage of water into the ground and/or serve as a surface for printing and decoration. The present coated fabrics can also be tailored to specific applications.
    Type: Application
    Filed: March 26, 2010
    Publication date: July 12, 2012
    Inventors: Naresh R. Mehta, David A. Pettey, Jeffrey C. Flath
  • Patent number: 8207291
    Abstract: Process for devolatilization of a polymer of an aromatic alkylene, such as styrene and, in particular, an improved process using water as a stripping agent (i) in which the total amount of water to be disposed of can be reduced, (ii) which allows at least a portion of the water to be recycled as stripping agent, reducing make-up requirements for the stripping agent, and (iii) which allows at least a portion of the aromatic alkylene monomer in the water to be recycled to the polymerization process (via the devolatilization steps) rather than being disposed.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: June 26, 2012
    Assignee: Ineos Europe Limited
    Inventor: Jean-Marc Galewski
  • Patent number: 8202918
    Abstract: Methods and systems for processing waste materials and for manufacturing composite materials are disclosed herein. According to some embodiments, the heterogeneous waste includes a plastic component and a non-plastic component, and the non-plastic component includes a plurality of pieces of waste. The heterogeneous waste is heated to melt at least a portion of said plastic component and reducing a volume of said heterogeneous waste, and then mixed (e.g. by rotating a mixing chamber or by stirring) until at least some said pieces are each encapsulated by the melted plastic component. Upon cooling, the mixture optionally sets into a composite material. The presently disclosed invention does not require pre-sorting of the heterogeneous waste and is operative to process “as is” waste. Optionally, the waste is pre-sorted.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: June 19, 2012
    Inventors: Amit Azulay, Yuval Tamir
  • Publication number: 20120149790
    Abstract: The present invention provides a recycled building material such as roof/Geo membrane that comprises (i) a polyolefin, (ii) a polymer containing a carboxyl group or a hydroxyl group, and (iii) a compatabilizer for the components (i) and (ii) which contains an epoxy group or an anhydride group. The present invention also provides a method of recycling building material as well as an article of manufacture such as a TPO membrane using the recycled building material. The TPO membrane has gained better physical properties such as consistent product quality, tensile strength, tear strength, wind resistance, and avoidance of tedious screening processes, among others.
    Type: Application
    Filed: February 20, 2012
    Publication date: June 14, 2012
    Inventor: L. Richard PENG
  • Patent number: 8153699
    Abstract: A surfacing composition made of recycled paint, which requires no priming, has a non-reflective “flat” appearance, and is partially composed of dried paint. The composition provides a useful application for used or excess household paint, which would otherwise require special methods of disposal and potentially create future toxic cleanup problems. The composition is made of granular dried paint and a water-based sealer, which can be spread on a surface to repair imperfections. The surface can then be finished, and no priming is required. Due to the composition's flat appearance, the patch does not display any characteristic sheen where the repair has been made. The composition provides a simple means of recycling paint, and provides a simple and inexpensive means of repairing imperfections in walls and other surfaces while saving the step of priming the patch before painting or repainting.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: April 10, 2012
    Inventor: Larry Allen Holloway
  • Publication number: 20120083542
    Abstract: The present invention relates to a process for the treatment of waste in a reactor (3) comprising the steps of combining the waste to be processed and an aqueous, alkaline solution to form a reaction mixture, heating the reaction mixture to a temperature range between 140° C. to 250° C. and a pressure between 3 bar and 12 bar to produce at least one aqueous, organic phase, a gas phase and optionally a solid phase, removing the gas phase from the reactor (3), separating the organic and aqueous components of the gas phase, in particular by means of a rectification column and feeding the aqueous components of the gas phase back into the reactor.
    Type: Application
    Filed: March 18, 2009
    Publication date: April 5, 2012
    Applicant: PATRICK VON HERTZBERG
    Inventor: Thomas Müller
  • Publication number: 20120071573
    Abstract: The invention relates to a method for adjusting the pH value and/or for neutralizing acid and/or basic compounds, in particular degradation or decomposition products, as part of the reprocessing and recycling of in particular thermoplastic materials, in the course of which the polymer particles are permanently moved and heated in a reactor, wherein at least one filler is added for neutralization purposes, specifically in a quantity which corresponds at least to the anticipated acid or alkali load.
    Type: Application
    Filed: March 30, 2010
    Publication date: March 22, 2012
    Applicant: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Klaus Feichtinger, Manfred Hackl, Gerhard Wendelin
  • Publication number: 20120071574
    Abstract: A stone based copolymer substrate includes calcium carbonate (CaCO3) from approximately fifty to eighty-five percent (50-85%) by weight and varying in size generally from 1.0 to 3.0 microns, high-density polyethylene (HDPE) from approximately two to twenty-five percent (2-25%) by weight and a biopolymer from approximately two to twenty-five percent (2-25%) by weight. The substrate may include a biodegradation additive from approximately three fourths of a percent to two percent (0.75-2%) by weight. By selectively adjusting the ranges of the substrate's components, various products can be made to replace current tree-based and plastic-based products. The substrate can be configured to be tear proof, water proof, fade resistant and fire retardant while utilizing less energy and producing less waste during its manufacture. In an exemplary embodiment of the invention, the stone used in the substrate includes limestone.
    Type: Application
    Filed: July 28, 2011
    Publication date: March 22, 2012
    Applicant: GREEN FOLKS & MACLEOD, INC.
    Inventor: Mathew D. MacLeod
  • Patent number: 8138233
    Abstract: In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: March 20, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Parminder Agarwal, Kristen Cohoon-Brister, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Dhaval Shah
  • Patent number: 8138232
    Abstract: The invention relates to a method for recycling plastic materials which contain at least two polymers, copolymers or blends thereof based on polystyrene. The plastic material is thereby mixed with a solvent for the polymers, copolymers or blends. Subsequently a precipitation is effected by addition of a corresponding precipitant so that then the gelatinous precipitation product can be separated from the further components of the plastic material. The method is used for recycling of any plastic materials, in particular of plastic materials from electronic scrap processing and from shredder light fractions.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: March 20, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Andreas Maeurer, Martin Schlummer, Otto Beck
  • Patent number: 8097659
    Abstract: A flexible polyurethane foam is obtained by making a material containing polyols, a cross-linking agent and a polyisocyanate compound react in the presence of a catalyst, a blowing agent and an auxiliary blowing agent. At this time, the isocyanate index of the polyisocyanate compound is set to 110 to 120. Preferably, a polyol of which the hydroxyl value is 250 mg KOH/g to 650 mg KOH/g and of which the molecular weight is 150 to 500 is used as the cross-linking agent, and concretely, polyethylene glycol can be used. A liquefied carbon dioxide is used as the auxiliary blowing agent with an amount mixed in of 1.5 mass parts to 6.0 mass parts relative to 100 mass parts of the polyols. The load required for compressing to 25% of the initial thickness is 30 N to 70 N, and thus, the flexible polyurethane foam has a low hardness.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: January 17, 2012
    Assignee: Inoac Corporation
    Inventor: Fuminori Horio