| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 521400500 |
Process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only
| 91 |
| 521048000 |
Treating polyester
| 47 |
| 521049000 |
Treating polyurethane, polyurea (excluding urea-formaldehyde polymers), polyisocyanurate or polycarbodiimide | 5 |
| 20100093880 | RECYCLING CLEAVAGE OF POLYURETHANES - A process is described for splitting polyurethanes and polyurethaneureas, in which the polymer is first reacted with gaseous or liquid secondary aliphatic or cycloaliphatic amines, the secondary urea formed, after removal with hydrogen chloride, is split to the isocyanate, and the polyols or polyamines also formed in the reaction are worked up and purified. It is possible by the process according to the invention to work up polyurethanes, polyurethaneureas, etc., of any origin, and to break them down into the starting materials, specifically the isocyanates, polyols or polyamines, to form starting materials in very high quality, which can be reused for the synthesis of any polyurethanes or polyureas. The invention further provides for the preparation of secondary bis-ureas from polyurethanes or polyurethaneureas or/and ureas. | 04-15-2010 |
| 20090318576 | Process for Producing Regenerated Resin, Regenerated Resin, Processing Recovered Matter from Resin Composition, Regenerated Resin Composition and Method of Regenerating Resin Composition - The invention provides a process for producing a recycled resin, which includes: a first step of decomposing a resin composition containing a thermosetting resin in a supercritical or subcritical solvent having a monomer constituting the thermosetting resin or a derivative thereof as an essential component and a second step of adding a polyfunctional compound thereto to process; a recycled resin or a processed and recovered matter obtained according to the process for producing; a recycled resin composition formed from a recycled resin and/or a processed and recovered matter of the resin composition; and a method for recycling a resin composition, which reuses said recycled resin and/or said processed and recovered matter of a resin composition as a raw material of a recycled resin composition. | 12-24-2009 |
| 20120309858 | METHOD FOR RECYCLING SYNTHETIC TURF AND PRODUCT - The invention comprises a composition comprising the extrusion product of synthetic turf and a processing agent, whereby the extrusion product has a moisture content of less than 0.5% by weight. A process for making the composition is also disclosed. | 12-06-2012 |
| 20130005841 | Closed-Loop Recycled Polyurethane Foam, Methods Of Manufacture And Products Therefrom - The present disclosure relates to the production of molded products containing recycled content, and more particularly polyurethane foam which includes polyol recovered from chemical recycling of polyurethane foam scrap, which polyol has been treated to optimize viscosity and/or reactivity characteristics. | 01-03-2013 |
| 20140155503 | Closed-Loop Recycled Polyurethane Foam, Methods Of Manufacture and Products Therefrom - The present disclosure relates to the production of molded products containing recycled content, and more particularly polyurethane foam which includes polyol recovered from chemical recycling of polyurethane foam scrap, which polyol has been treated to optimize viscosity and/or reactivity characteristics. | 06-05-2014 |
| 521470500 |
Treating polysiloxane | 1 |
| 20100048743 | Method of Recycling Plastic - The present invention relates to a method of separating a cured silicone composition and a plastic. The first step of the method comprises combining a cured silicone composition and a plastic with a liquid that has a specific gravity between that of the cured silicone composition and that of the plastic. The second step of the method comprises allowing the cured silicone composition and the plastic to stratify in the liquid, and the third step comprises physically separating the cured silicone composition and the plastic by removing one of the strata from the liquid. | 02-25-2010 |
| 521490800 |
Treating polycarbonamide | 1 |
| 20160145409 | METHOD FOR RECOVERING ORGANIC FIBERS FROM A COMPOSITE MATERIAL - The invention relates to a method for recovering organic fibers from a composite material comprising a polymer matrix and organic fibers, wherein the method comprises the following steps: providing a solution comprising a mixture of water and alcohol; placing the composite material inside a reactor; contacting the mixture and the composite material in order to perform a solvolysis reaction of the composite material; and recovering the organic fibers; wherein the pressure and the temperature in the reactor are adjusted such as to fall within the homogeneous sub-critical range of the phase diagram, within the super-critical range or near the critical point; and wherein the temperature is lower than the melting temperature of the organic fibers. | 05-26-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20080249199 | Method and plant for the manufacture of polymer particles - The method for the manufacture of foamed or foamable polymer particles employs a mixture of a polymer melt and a recycled polymer melt produced from recycled, propellant-containing polymer particles. The associated plant for the manufacture of the foamed or foamable polymer particles is provided with an apparatus for the processing of recycled, propellant-containing polymer particles. | 10-09-2008 |
| 20080255259 | Method for removing color from polymeric material - Color is removed from polymeric material by a method which comprises contacting a dyed or pigmented polymer composition with a non-aqueous extraction solvent comprising a nitrogen containing organic base, an ammonium salt and an alkanol. The present method is readily applied to a process for recycling colored polyamide substrates such as dyed nylon fiber. | 10-16-2008 |
| 20080269362 | Recycled thermosetting flour composites and method for preparing the same - The recycled thermosetting flour composites and method for preparing the same are disclosed. The silane coupling agent is used as a coincidental bridge between recycled thermosetting flour and plastic materials, to apparently promote the mechanical properties of composites by linking with each other. As a result, the recycled polyolefin and recycled thermosetting flour are applied through interfacial modification, coupling, modification, mixing and granulating process to generate a composite with better mechanical properties and recycle the resource. | 10-30-2008 |
| 20080287557 | APPARATUS AND METHOD FOR CONTINUOUSLY TREATING SURFACE OF WASTE RUBBER POWDER BY USING MICROWAVE - An apparatus continuously treats the surface of waste rubber powder by means of microwave thereby making it possible to treat the surface of waste rubber powder continuously and more efficiently. As a result, recycled rubber material has superior surface roughness and processability and the physical or chemical properties of the rubber articles are improved. | 11-20-2008 |
| 20090018223 | Recycle of electrical equipment - The conventional techniques for recycling an electrical equipment including a hardened epoxy resin and electroconductive material has involved conventional problems that a catalyst is degraded to an extent that it can be no longer reused when a water is contained in a dissolving system. | 01-15-2009 |
| 20090030094 | Bottle excellent in recyclability and method for recycling the bottle - There are provided a bottle which has a laminate structure including a glycolic acid polymer layer showing good gas-barrier property in addition to a principal resin layer and is yet provided with excellent recyclability, and also an efficient method of recycling the bottle. More specifically, a bottle having a laminate structure including at least one layer of glycolic acid polymer in addition to a principal resin layer, is obtained. After breaking the bottle, the broken pieces are washed with alkaline water, water or acidic water to remove the glycolic acid polymer layer, thereby recovering the principal resin. | 01-29-2009 |
| 20090170969 | Method for obtaining alkali metal salt aqueous solution of aromatic dihydroxy compound from waste aromatic polycarbonate - There is provided a method for obtaining an aqueous solution of an alkali metal salt of an aromatic dihydroxy compound by decomposing a waste aromatic polycarbonate by an alkali metal hydroxide aqueous solution. The method comprises (1) a dissolution step of dissolving a waste aromatic polycarbonate in a chlorinated hydrocarbon solvent, (2) a decomposition step of adding an alkali metal hydroxide aqueous solution to this solution to decompose the aromatic polycarbonate, (3) a re-dissolution step of adding water to this decomposed solution to dissolve a solid, (4) a two phase formation step of leaving the treated solution obtained in the step (3) to stand to form an organic solvent phase (organic phase) and an aqueous solution phase (aqueous phase), and (5) a separation/collection step of separating the aqueous phase from the organic solvent phase and collecting the aqueous phase. | 07-02-2009 |
| 20090170970 | METHOD OF RECYCLING WASTE PLASTIC FOAM MATERIALS - A method of recycling waste plastic foam materials firstly is to smash a waste material including polyurethane foam into fine particles so as to obtain a first starting material. The first starting material is then crisped and followingly milled into powder so as to obtain a second starting material. The second starting material is then placed into a mixer to mix with a first foaming reaction solution including polyol, catalyst and additives injected into the mixer so as to form a semi-treated foaming material. And then, the semi-treated foaming material is mixed with a second foaming reaction solution including diisocyanate injected into the mixer so as to obtain a completed-treated foaming material. Lastly, the completed-treated foaming material is poured into a mold and then water vapor is uniformly introduced into the mold so as to induce the completed-treated foaming material to proceed foaming reaction. | 07-02-2009 |
| 20090215912 | Decomposition Reaction Apparatus, System For Producing Raw Material For Recycled Resin Composition, Method For Producing Raw Material For Recycled Resin Composition, Raw Material For Recycled Resin Composition, And Formed Article - A decomposition reaction apparatus for the decomposition treatment of a thermosetting resin, which comprises a reaction apparatus comprising an introduction section for introducing a resin composition containing the thermosetting resin and a solvent containing a monomer component of the thermosetting resin or a component similar to the monomer component, a decomposition reaction section for heating and pressuring the resin composition and the above solvent so as for the solvent to have a supercritical state or a subcritical state, to thereby prepare a treated and recovered product containing a recycled resin formed by the reduction of the molecular weight of the above thermosetting resin, and a discharge section for discharging the treated and recovered product. In the above reaction apparatus, the introduction of the resin composition and the solvent, the decomposition treatment of the thermosetting resin in the decomposition reaction section and the discharge of the treated and recovered product from the discharge section are all carried out continuously, and therefore, a raw material for a recycled resin composition using an industrial or general waste containing a thermosetting resin as the above resin composition can be produced continuously. | 08-27-2009 |
| 20090281202 | Method of processing silicone wastes - A method of processing polymer materials, highly filled or otherwise to recover cyclic structures or monomers. The method involves providing a vessel having a heated side wall, an agitator, and at least one of an additional heated structure, other than the heated side wall, within the vessel and means for forming a thin coat of material processed in the vessel on said heated side wall. A polymer material is fed into the vessel and heated to a sufficient temperature to cause depolymerization of the polymer material into cyclic structures or monomers. The cyclic structures or monomers are removed from the vessel and collected. The method does not require the use of a solvent. | 11-12-2009 |
| 20090286892 | PROCESS FOR THE PRODUCTION OF RECYCLED POLYCARBONATE AS RAW MATERIAL FOR FLAME-RETARDANT RESIN COMPOSITIONS AND POLYCARBONATE-BASE FLAME-RETARDANT RESIN COMPOSITIONS - A method for manufacturing a recycled polycarbonate raw material for a flame retardant resin composition from discarded and/or recovered optical discs using a polycarbonate resin as a substrate material, and includes (a) a step to identify if 2,2-bis(4-hydroxyphenyl)propane as a divalent phenol of the polycarbonate resin raw material is polymerized as the sole raw material in the polycarbonate resin as the substrate material of the discarded and/or recovered optical discs and (b) a step to remove impurities by a chemical treatment by separating only the discarded and/or recovered optical discs, wherein the polycarbonate resin is identified as polymerized by using 2,2-bis(4-hydroxyphenyl)propane as the sole raw material. Accordingly, used optical discs using a PC resin as a substrate material and discarded optical discs as substandard articles in a manufacturing step can be reused as a raw material for a flame retardant polycarbonate resin composition by treating with a method at low cost and a low environmental load. | 11-19-2009 |
| 20090326082 | Compositions and Methods for Producing Articles from Recycled Materials - The present invention relates to compositions and methods for producing articles from recycled materials. In one embodiment, a recycled polymeric matrix containing a super adsorbant polymer is thermally and/or chemically treated to produce a modified polymeric matrix. In a preferred embodiment, a modified polymeric matrix is subsequently melt processed with a filler. Articles produced from the modified polymeric matrix and the composites of this invention are useful as building materials, automotive components and consumer goods. | 12-31-2009 |
| 20100016456 | Process for making polymer composites having thermoplastic properties - The present invention provides methods of making composite materials comprising combining particles of crosslinked rubber with coagulated aqueous polymer dispersions to form a mixture in aqueous dispersion, and subjecting the aqueous dispersion mixture to solid state shear pulverization to form materials that can be processed as thermoplastics at crosslinked rubber concentrations of from 10 to as high as 95 wt. %, based on the total solids of the material. The method may further comprise kneading the pulverized product to form useful articles, such as roofing membranes and shoe soles. | 01-21-2010 |
| 20100087554 | TIRE RECOVERY METHOD AND A DEVICE FOR CARRYING OUT SAID METHOD - The inventive method for recovery of tires, mainly waste tires, consists in supplying waste tires to a pyrolysis column, in exposing the tires to the action of variable magnetic field in such a way that they are heated to a temperature of rubber thermal decomposition, in removing volatile products which are formed during the rubber thermal decomposition process, in cooling solid residues of the thermal decomposition products and in removing them from the pyrolysis column, wherein the tires are previously divided into parts which are supplied to the pyrolysis column through a feed port and the tires are inductively heated by means of a magnetic field, the frequency of which ranges from 1 to 1000 kHz. A device for carrying out said method is also disclosed. | 04-08-2010 |
| 20100249253 | METHOD FOR THE RECYCLING OF POLYVINYL BUTYRAL - Method for the recycling of polyvinyl butyral based on the obtaining of recycled polyvinyl butyral (PVB) from laminated glass which is then shattered and the polyvinyl butyral (PVB) is separated. The sheet obtained is cut into pieces, then proceeding to a surface cleaning process eliminating the dirt and foreign matter, which comprises: a first polyvinyl butyral (PVB) purification stage by way of a chemical treatment by means of a reagent; a subsequent final chemical treatment stage supplementary to the first stage by means of a reagent, the purification treatment being carried out on the polyvinyl butyral (PVB) in solid state and obtaining totally purified polyvinyl butyral read to be used again in the manufacture of laminated glass. | 09-30-2010 |
| 20100317752 | Recycling of Natural and Synthetic Rubber - A delinking composition in the form of a combined solid dose comprising: (i) one or more elastomer delinking accelerators selected from the group consisting of zinc salts of thiocarbamates and zinc salts of dialkyl dithiophosphates; and (ii) one or more elastomer delinking accelerators selected from the group consisting of 2-mercaptobenzothiazole or derivatives thereof, thiurams, guanidines, 4,4′-dithiomorpholine and sulpenamides; and (iii) at least one elastomer delinking activator. | 12-16-2010 |
| 20110046248 | METHOD AND EQUIPMENT FOR CONDITIONING LOW-METAL PLASTIC SCRAP - In a method and equipment for conditioning low-metal scrap high in plastics, which contains at least partially scrap high in plastics from shredder processes, especially of scrap vehicles, the method includes: splitting up ferromagnetic components from the scrap that is high in plastics; separating a first raw sand fraction from the scrap high in plastics that has been reduced in metals; reducing in size the fraction high in plastics that remains after the isolation of the first raw sand fraction; separating a second raw sand fraction after reducing in size the remaining fraction high in plastics; and splitting up the remaining fraction, that is high in plastics, into a light fraction and a heavy fraction. | 02-24-2011 |
| 20110105632 | METHOD AND SYSTEM FOR PROCESSING WASTE MATERIALS - 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. Exemplary uses for the composite material include but are not limited to flooring sheets, construction bricks, thermal insulation, acoustic walls, road paving materials, road beds, ballistic shields shock absorbing flooring, artificial islands, artificial reefs, and marine docks. | 05-05-2011 |
| 20110184077 | METHOD FOR DECOMPOSING POLYMER MATERIAL, METHOD FOR PRODUCING RECYCLED RESIN, AND METHOD FOR RECOVERING INORGANIC FILLER - The present invention is a method for decomposing a polymer material by chemically decomposing a polymer material containing a first monomer and a second monomer in a mixture of the polymer material with the first monomer or a derivative of the first monomer to produce a chemical raw material. A relationship between a proportion of number of molecules of the second monomer to number of molecules of the first monomer in a reaction system for decomposing the polymer material and the molecular weight of the chemical raw material produced in the reaction system is acquired in advance (S | 07-28-2011 |
| 20110207837 | Method Of Separating Superabsorbent Polymer Particles From A Sollidified Thermoplastic Composition Comprising Polymers - A method for re-mobilizing superabsorbent polymer particles which have previously been immobilized by a solidified thermoplastic composition comprising at least 30 weight-% of a thermoplastic polymer. The superabsorbent polymer particles are separated from the solidified thermoplastic composition by using a supercritical fluid comprising carbon dioxide, propane, or mixtures thereof. Separation may be further improved by the use of one or more co-solvents. | 08-25-2011 |
| 20110257279 | RECYCLING AN ORGANIC-MATRIX COMPOSITE MATERIAL - The invention is directed to a method for recycling an organic-matrix composite material. The organic-matrix composite material comprises a first component comprising at least one organic matrix polymer and at least one solid second component being compatible with said first component and being structurally different from said first component, wherein said at least one organic polymer has thermosetting properties at room temperature and wherein said polymer comprises thermally reversible cross-links The method of the invention comprises -heating the organic-matrix composite material to a temperature at which at least part of the thermally reversible cross-links cleave and at which temperature the first component as a viscosity of at most 500 Pa·s, as measured by oscillatory measurements on an Anton Paar MCR | 10-20-2011 |
| 20110288188 | PROCESSING OF WASTE MATERIAL - 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. | 11-24-2011 |
| 20110294909 | PROCESS FOR ADDING A COUPLING AGENT TO RAW STOCK - The invention relates to a process for manufacturing composite material which contains fiber based and polymer based material, wherein the manufacture includes a preliminary treatment process to form a raw stock mixture. According to the invention, the preliminary treatment process includes a hot-cold mixing device which comprises at least a heating stage, and that raw stock, which contains lignin-free material, and a coupling agent are fed to the mixing device to form the raw stock mixture, and adhesion between fiber based and polymer based substances of the raw stock is ameliorated by the coupling agent. | 12-01-2011 |
| 20120220675 | Systems, and Methods for Recycling Plastic - Systems and methods for recycling waste plastic can convert the waste plastic into a form of purified crude oil that includes one or more organic molecular species and that is free, or substantially free, of impurities such as acids and metals. In some systems and methods, the plastic is heated under vacuum conditions to effect depolymerization of the plastic, which yields a vapor, and the vapor is then directly contacted with a pH adjusted solution in a vapor treatment system. In some systems and methods, a continuous batch process is employed. | 08-30-2012 |
| 20130018115 | METHOD FOR RECOVERING POLYCARBONATE RESIN FROM DISCARDED OPTICAL DISC AND/OR RECOVERED OPTICAL DISC, FLAME-RETARDANT POLYCARBONATE RESIN COMPOSITION, INJECTION MOLDED BODY, AND MOLDED ARTICLE FOR OPTICAL USEAANM Isozaki; ToshioAACI ChibaAACO JPAAGP Isozaki; Toshio Chiba JPAANM Mitsuhashi; KenichiAACI ChibaAACO JPAAGP Mitsuhashi; Kenichi Chiba JPAANM Ito; NobuyukiAACI KanagawaAACO JPAAGP Ito; Nobuyuki Kanagawa JP - Provided is a method for recovering a polycarbonate resin from a discarded optical disk and/or a recovered optical disk, which has a polycarbonate resin substrate. The following process steps (I) and (II) are applied to a chemically treated product, which is obtained by crushing a discarded optical disk and/or a recovered optical disk, and chemically treating the resulting crushed product. Process step (I): a step containing (a) removing a magnetic metal foreign matter with a magnet, and (b) identifying a colored foreign matter with an optical camera, and removing the colored foreign matter. Process step (II): a step containing detecting the presence of a metal foreign matter with a metal foreign matter detector, and removing a resin containing the metal foreign matter. | 01-17-2013 |
| 20140221510 | REINFORCED COMPOSITE AND METHOD FOR RECYCLING THE SAME - The present invention relates to a reinforced composite and method for recycling the same. The reinforced composite comprises a reinforcement material in a cross-linked polymer matrix, wherein the cross-linked polymer comprises a cross-linking group derived from a curing agent represented by formula (I), Wherein R | 08-07-2014 |
| 20150045461 | METHOD FOR RECLAIMING USED SUPERABSORBENT POLYMER - A method enabling a used superabsorbent polymer recovered from used absorbent, etc., to be readily and inexpensively recovered without using acids or alkalies. The used superabsorbent polymer is treated with an aqueous solution of a multivalent metal salt such as calcium chloride, etc., the superabsorbent polymer treated with the aqueous solution of a multivalent metal salt is treated with an aqueous solution of an alkaline metal salt such as sodium chloride, etc., the superabsorbent polymer treated with the aqueous solution of an alkaline metal salt is washed with water, and the superabsorbent polymer washed with water is then dried. | 02-12-2015 |
| 20150307681 | METHOD FOR BELCHING WATER FROM SWOLLEN SUPERABSORBENT POLYMERS AND METHOD FOR RECYCLING SANITARY ABSORBENT ARTICLES USING THE SAME - The present invention relates to a method for removing water from swollen superabsorbent polymers in a gel state, and a method for recycling sanitary absorbent articles using the same. According to the method of the present invention, water is removed from swollen superabsorbent polymers by immersing swollen superabsorbent polymers in a gel state into a composition wherein sea water that is readily available and calcium chloride that is readily available at low cost are mixed for a specified period of time. The method makes it possible to easily and economically remove water from swollen SAPs in a gel state. Thus, the method provides an economical and environmentally-friendly means for recycling sanitary absorbent articles comprising an absorbent that consists of SAP and cellulose pulp, after being used for absorbing human waste. | 10-29-2015 |
| 20160046760 | NOVEL CYCLIC ACETAL, CYCLIC KETAL DIAMINES EPOXY CURING AGENTS AND DEGRADABLE POLYMERS AND COMPOSITES BASED THEREON - The present invention provides, among others, compounds of the following formula which can be used as degradable curing agents, methods for preparing the compounds, degradable polymers and reinforced composites, methods for degrading and recycling the polymers and composites. | 02-18-2016 |
| 20160145408 | UTILIZATION OF GASSES FOR POLYMERIC MATERIALS FRAGMENTATION AND ACTIVATION AND RELATED DEVICE - The present invention relates generally to utilising gasses for fragmenting polymeric materials and simultaneously modifying the surface area molecular structure of the said polymeric materials. More particularly, the present invention relates to a method and associated device for the processing of already preliminarily deformed polymeric materials, preferably without metal reinforcing elements, by utilising aggressive gasses to both modify the polymeric materials surface area into an activated state and also simultaneously fragment the fed preliminarily deformed polymeric materials into a powder-like form with a relatively increased surface area. | 05-26-2016 |
