Treating Polyester Patents (Class 521/48)
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Patent number: 11254797Abstract: The invention relates to a PET regranulate which, after modification of a granulated PET recyclate, has an intrinsic viscosity of at least 0.95 dl/g measured according to ASTM D 4603, preferably greater than 1.0 dl/g and particularly preferably between 1.1 dl/g and 1.7 dl/g and is suitable for the production of extrusion blow-molded containers.Type: GrantFiled: December 21, 2017Date of Patent: February 22, 2022Inventors: Andreas Weber, Franz Michael Lässer, Michael Schranz
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Patent number: 11180629Abstract: Systems and methods are provided that involve a subcritical water reaction to recycle the cellulose and polyester components of waste cotton and cotton/polyester blend textiles that would otherwise be discarded or disposed of. Specifically, the disclosed methods provide for treatment of the waste textiles to produce advanced materials including cellulose and terephthalic acid (TPA) with a low environmental impact. The cellulose and TPA that are produced are of a high quality allowing for production of regenerated cellulose and regenerated polyethylene terephthalate (PET) suitable for fiber spinning and textile applications.Type: GrantFiled: November 26, 2019Date of Patent: November 23, 2021Assignee: Circ, LLCInventors: Florin G. Barla, Todd Showalter, Hsun-Cheng Su, Jeremy Jones, Iulian Bobe
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Patent number: 11168196Abstract: According to an example aspect of the present invention, there is provided a method of separating cellulose and polyester from a material comprising a blend of cellulose and polyester, said method comprising the steps of mixing the material comprising a blend of cellulose and polyester with a first portion of superbase-based ionic liquid to dissolve a first portion of cellulose and form a first cellulose solution and a first residue comprising polyester, removing the first residue comprising polyester from the first cellulose solution, and directing the first cellulose solution to one or more further processing steps.Type: GrantFiled: December 20, 2017Date of Patent: November 9, 2021Assignee: Aalto University Foundation srInventors: Simone Haslinger, Michael Hummel, Herbert Sixta
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Patent number: 11155691Abstract: Embodiments relate to a process for regenerating a polyester container and a polyester film to be used therein, which not only solve the environmental problems by improving the recyclability of polyester containers, but also are capable of enhancing the quality, yield, and productivity. The process for regenerating a polyester container comprises providing the polyester container and a heat-shrunken polyester film that wraps at least part of the polyester container; crushing the polyester container and the heat-shrunken film to obtain flakes; and thermally treating the flakes to produce regenerated polyester chips, wherein when the flakes are thermally treated at a temperature of 200° C. to 220° C.Type: GrantFiled: November 18, 2019Date of Patent: October 26, 2021Assignees: SKC CO., LTD., SKC INC.Inventors: Chul Kyu Kim, Yongdeuk Kim, Joo Ho Yang
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Patent number: 11149112Abstract: The present invention relates to a biodegradable polyester and use thereof, including components: A) acid components containing following repeating units: 50 to 58 mol % of terephthalic acid A1; 30 to 40 mol % of sebacic acid A2; and 2 to 20 mol % of an aliphatic dibasic acid A3 with a carbon chain length of 6 or less; B) butanediol. In the present invention, in the case of a high content of the terephthalic acid, the biodegradable polyester prepared by introducing an aliphatic dibasic acid unit having a carbon chain length of 6 or less can satisfy the degradation performance and rigidity and improve the tenacity of the material simultaneously.Type: GrantFiled: June 26, 2018Date of Patent: October 19, 2021Assignee: KINGFA SCI. & TECH. CO., LTD.Inventors: Weiwei Wang, Zhimin Yuan, Tongmin Cai, Xianbo Huang, Xiangbin Zeng, Nanbiao Ye, Zhilong Guo, Changli Lu
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Patent number: 11149113Abstract: A biodegradable polyester and use thereof includes components: A) acid components containing following repeating units: 40 to 48 mol % of terephthalic acid A1; 38.5 to 50 mol % of sebacic acid A2; and 2 to 20 mol % of an aliphatic dibasic acid A3 with a carbon chain length of 6 or less; B) butanediol. In the case of low content of the terephthalic acid unit, by introducing the aliphatic dibasic acid unit with the carbon chain length of 6 or less, mechanical properties of the material can be significantly improved, and the mechanical property retention is better especially when stored in a humid environment.Type: GrantFiled: June 26, 2018Date of Patent: October 19, 2021Assignee: KINGFA SCI. & TECH. CO., LTD.Inventors: Weiwei Wang, Zhimin Yuan, Tongmin Cai, Xianbo Huang, Xiangbin Zeng, Nanbiao Ye, Zhilong Guo, Changli Lu
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Patent number: 11008435Abstract: Embodiments relate to a process for regenerating a polyester container and regenerated polyester chips prepared therefrom. The process comprises preparing a polyester container provided with a heat shrinkable film; crushing the container provided with the heat shrinkable film to obtain flakes; and thermally treating the flakes to produce regenerated polyester chips, wherein when the flakes are thermally treated at a temperature of 200° C. to 220° C. for 60 minutes to 120 minutes, the clumping fraction is 5% or less, and the flakes comprise first flakes obtained by crushing the container and second flakes obtained by crushing the heat shrinkable film. It not only solves the environmental problems by improving the recyclability of the polyester container, but also is capable of enhancing the yield and productivity.Type: GrantFiled: November 18, 2019Date of Patent: May 18, 2021Assignees: SKC INC., SKC CO., LTD.Inventors: Daeyong Shin, Yongdeuk Kim, Jung Kyu Lee, Jaehyong Son, Eugene Jung
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Patent number: 10947362Abstract: The present invention is in the field of a method of degrading a polymer into oligomers and/or monomers in a solvent, using a catalyst, and a functionalized magnetic particle comprising a catalyst being capable of degrading the polymer into oligomers and/or monomers. The present method and particle provide a high selectivity and a high conversion ratio.Type: GrantFiled: May 21, 2019Date of Patent: March 16, 2021Inventors: Tonnis Hooghoudt, Vincent Philippi, Marcel Vilaplana Artigas
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Patent number: 10858494Abstract: A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.Type: GrantFiled: September 18, 2019Date of Patent: December 8, 2020Inventors: Sonja Irene-Marie Reginalde Castillo, Susanne Van Berkum, Vincent Gertrudis Antonius Philippi, Joost Robert Wolters
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Patent number: 10800897Abstract: A heat shrinkable film and a process for regenerating a polyester container using the same. The heat shrinkable film comprises a copolymerized polyester resin comprising a diol component and a dicarboxylic acid component and has a heat shrinkage rate of 30% or more in the main shrinkage direction upon thermal treatment at a temperature of 80° C. for 10 seconds and a melting point of 190° C. or higher as measured by differential scanning calorimetry. It not only solves the environmental problems by improving the recyclability of the polyester container, but also is capable of enhancing the yield and productivity.Type: GrantFiled: March 15, 2019Date of Patent: October 13, 2020Assignees: SKC INC., SKC CO., LTD.Inventors: Daeyong Shin, Yongdeuk Kim, Jung Kyu Lee, Jaehyong Son, Eugene Jung
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Patent number: 10767026Abstract: The present invention relates to processes for degrading plastic products and the uses thereof. The processes of the invention particularly comprise a step of amorphizing a plastic product prior to a step of depolymerization. The processes of the invention are particularly useful for degrading a plastic product comprising polyethylene terephthalate and/or polylactic acid. The invention also relates to a method of producing monomers and/or oligomers from a plastic product comprising at least one polyester, particularly polyethylene terephthalate and/or polylactic acid, comprising submitting the plastic product both to an amorphization step and to a depolymerization step.Type: GrantFiled: May 18, 2017Date of Patent: September 8, 2020Assignee: CARBIOSInventors: Marie-Laure Desrousseaux, Helene Texier, Sophie Duquesne, Alain Marty, Mediha Aloui Dalibey, Michel Chateau
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Patent number: 10544276Abstract: A subject-matter of the invention is a process for the depolymerization of a polyester feedstock comprising opaque PET, the said process comprising at least the stages of conditioning, of depolymerization and of separation of the diol and of separation of the liquid effluent rich in monomers, followed by a decolouration stage.Type: GrantFiled: July 4, 2017Date of Patent: January 28, 2020Assignee: IFP Energies NouvellesInventors: Cyprien Charra, Frederic Favre, Adrien Mekki-Berrada, Olivier Thinon
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Patent number: 10472486Abstract: 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 with an aliphatic hydrocarbon as solvent.Type: GrantFiled: July 13, 2016Date of Patent: November 12, 2019Assignee: SOLVAY SAInventors: Stéphane Streiff, Dominique Balthasart, Armin T. Liebens, Gérard Antonini
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Patent number: 10421849Abstract: A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.Type: GrantFiled: December 23, 2016Date of Patent: September 24, 2019Assignee: Ioniqa Technologies B.V.Inventors: Sonja Irene-Marie Reginalde Castillo, Susanne Van Berkum, Vincent Gertudis Antonius Philippi, Joost Robert Wolters
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Patent number: 10023689Abstract: Biodegradable polyesters are made by synthesizing copolymers derived from biodegradable hydroxyacid monomers as well as from hydroxyacid monomers containing a functional group such as an azide group, a halogen group, a thioacetate group, and the like. Preferably, the functionalized biodegradable polyester copolymers are derived from a functionalized hydroxyacid such as a homolog of lactic acid and/or glycolic acid with the copolyester thus containing functional groups on the backbone thereof. These biodegradable polyesters can be utilized wherever biodegradable polyesters are currently used, and also serve as a polymer to which various medical and drug delivery systems can be attached.Type: GrantFiled: April 19, 2016Date of Patent: July 17, 2018Assignee: The University of AkronInventors: Coleen Pugh, Abhishek Banerjee, William Storms, Colin Wright
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Patent number: 9932456Abstract: The present disclosure relates to a process for recovering a polyester component and products of a non-polyester component from a fabric containing a polyester blend. The polyester component of the present disclosure is polyethylene terephthalate and the non-polyester component is wool. The process includes hydrolyzing the article using at least one hydrolyzing agent to convert the non-polyester component into products of the non-polyester component and release the polyester component.Type: GrantFiled: January 6, 2015Date of Patent: April 3, 2018Assignee: Reliance Industries LimitedInventors: Vidhya Rangaswamy, Anurag Srivastava, Vijai Balachandran, Harshvardhan Joshi
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Patent number: 9914816Abstract: Provided is a method of depolymerizing polyesters from post-consumer products, such as beverage bottles, to produce a high purity reaction product. For the depolymerization reaction, the polyesters are reacted with an alcohol and an amine organocatalyst at a temperature of about 150° C. to about 250° C. In one application, the use of an organocatalyst with a boiling point significantly lower than the boiling point of the reactant alcohol allows for the ready recycling of the amine organocatalyst. In another application, performing the depolymerization reaction under pressure at a temperature above the boiling point of the alcohol allows for accelerated depolymerization rates and the recovery of the organocatalyst with no further heat input.Type: GrantFiled: November 4, 2015Date of Patent: March 13, 2018Assignee: International Business Machines CorporationInventors: Robert D. Allen, Krishna M. Bajjuri, Gregory Breyta, James L. Hedrick, Carl E. Larson
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Patent number: 9822218Abstract: The present invention is to provide a process for producing a high molecular-weight aromatic polycarbonate resin, the process includes mixing a dialcohol compound represented by the following Formula (1) with a first catalyst to obtain a catalyst composition; mixing the obtained catalyst composition with an aromatic polycarbonate prepolymer to obtain a prepolymer mixture; and obtaining a high molecular-weight aromatic polycarbonate by subjecting the obtained prepolymer mixture to heating treatment under reduced pressure condition. In the Formula (1), R1 to R4 each independently represent a hydrogen atom, an alkyl group and the like. Q represents a divalent group or a single bond.Type: GrantFiled: November 12, 2014Date of Patent: November 21, 2017Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yoshinori Isahaya, Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun-ya Hayakawa, Takehiko Isobe, Hongyu Liu, Hiroki Furuhashi, Yousuke Shinkai
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Patent number: 9776343Abstract: A method for separating materials of various type having different softening temperature values, includes pouring a mixture of flakes and fragments of materials on a movable receiving and conveying device in a uniformly distributed manner and advancing it along a first portion of path; actuating an electromagnetic inductor to heat an outer metal surface by electromagnetic induction, which surface is included in the movable receiving and conveying device to achieve a first lower softening temperature corresponding to a first material of the mixture; subjecting the mixture to a separating action during which a first fraction, remains stuck to the outer metal surface, whereas a remaining second fraction of materials having higher softening temperatures than the first softening temperature freely slips by gravity towards a lower receiving zone.Type: GrantFiled: November 20, 2014Date of Patent: October 3, 2017Assignee: PREVIERO N. S.R.L.Inventor: Flavio Previero
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Patent number: 9611371Abstract: A process for extracting polyester from an article using a solvent system using a compound according to Formula I is described, where wherein R1 and R2 are each independently selected from: hydrogen, alkyl, alkenyl, alkynyl, aryl or alkoxy groups; R3 to R12 are each independently selected from: hydrogen, alkyl, alkenyl, alkynyl, aryl or alkoxy groups; and each of “a” to “e” is a carbon atom, wherein the total linear chain length of a-b-c-d-e is in the range of 2 to 5 carbons.Type: GrantFiled: September 23, 2013Date of Patent: April 4, 2017Assignee: WORN AGAIN FOOTWEAR AND ACCESSORIES, LIMITEDInventor: Adam Walker
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Patent number: 9546258Abstract: The present invention relates generally to utilizing 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 utilizing 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.Type: GrantFiled: January 21, 2013Date of Patent: January 17, 2017Assignee: POLYMERIC POWDERS COMPANY PTY LTDInventor: Michael Vainer
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Patent number: 9334359Abstract: Provided is a method of continuous production of a biodegradable aliphatic polyester including continuously performing an esterification reaction of a mixture including an aliphatic dihydroxy compound and aliphatic dicarboxylic acid at a temperature of 185° C. or less to obtain an ester; continuously performing a first polycondensation reaction of the ester to obtain a preliminary polymer; and continuously performing a polycondensation reaction of the preliminary polymer. According to the method of production, an amount of the aliphatic dihydroxy compound used decreases, which is a starting material, thereby decreasing the manufacturing cost of the biodegradable aliphatic polyester.Type: GrantFiled: May 20, 2013Date of Patent: May 10, 2016Assignees: LOTTE FINE CHEMICAL CO., LTD., S-ENPOL CO., LTD.Inventors: Gyung Don Kang, Ki Chull Yun, Sang Yob Kim, Jung Ryum, Boo Seong Kim, Kil Seuk Byun, Sei Hoon Kim, Sung Bae Park
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Patent number: 9296868Abstract: It is provided that a polyester film containing a polyester resin obtained by recycling PET bottles and having high lamination strength and slight unevenness in thickness. A biaxially stretched polyester film comprising 50 wt. % or more and 95 wt. % or less of a polyester resin obtained by recycling PET bottles, wherein the content of an isophthalic acid component in all dicarboxylic acid components in the entire polyester resin composing the polyester film is 0.5 mol % or more and 5.0 mol % or less, and the polyester satisfy the specific intrinsic viscosity, the specific thermal shrinkage rate, the specific refractive index in the thickness direction, and the specific unevenness in thickness.Type: GrantFiled: September 25, 2013Date of Patent: March 29, 2016Assignee: Toyobo Co., Ltd.Inventors: Mahiro Nakano, Tadashi Nakaya, Toshiyuki Shimizu, Yoshitomo Ikehata
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Patent number: 9061443Abstract: A method of separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, wherein the softening point of the foreign polymers is lower than that of the crystalline PET particles, and wherein the method includes separating the amorphous PET particles from the polymer mixture, heating the resulting polymer mixture to a temperature between the softening point of the foreign polymers and that of the crystalline PET particles, and separating the foreign polymers from the resulting polymer mixture. Also, a device for separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, the device including a first separation unit for separating the amorphous PET particles from the polymer mixture, and a second separation unit for separating the foreign polymers from the resulting polymer mixture.Type: GrantFiled: December 20, 2011Date of Patent: June 23, 2015Assignee: KRONES AGInventor: Thomas Friedlaender
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Patent number: 9012525Abstract: In a tire constituted with a thermoplastic material and a material different from the thermoplastic material, the thermoplastic material and the material different from the thermoplastic material are easily and efficiently separated. While a tire 10 formed of a thermoplastic material is being turned, heated air is ejected from a nozzle 46 of a heating apparatus 44, and the surface of a crown portion 16 is melted. An end portion of a cord 26 embedded in a helical arrangement, which is formed of a material different from the thermoplastic material, is extracted from the melted region, and is sequentially wound onto a reel 58.Type: GrantFiled: August 12, 2011Date of Patent: April 21, 2015Assignee: Bridgestone CorporationInventors: Yoshihide Kouno, Seiji Kon, Keiichi Hasegawa
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Patent number: 8993644Abstract: 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: GrantFiled: September 18, 2009Date of Patent: March 31, 2015Assignee: Becton, Dickinson and CompanyInventor: Richard Ji
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Patent number: 8969425Abstract: The present invention relates to a process for separating two or more components of a plastic material for the purposes of recycling, with particular application to purifying poly(ethylene terephthalate) (PET) during recycling procedures. The process comprises contacting a quantity of the plastic material with one or more discrete pre-heated particles.Type: GrantFiled: February 22, 2013Date of Patent: March 3, 2015Assignee: Nextek LimitedInventor: Edward Kosior
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Publication number: 20150057379Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.Type: ApplicationFiled: September 12, 2014Publication date: February 26, 2015Inventors: Joseph E. BORK, Stephen C. PASPEK, SR., Alan F. SCHROEDER, William H. HEISE
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Patent number: 8883867Abstract: 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: GrantFiled: September 6, 2011Date of Patent: November 11, 2014Assignee: Green Source Holdings LLCInventors: Liang-tseng Fan, Shahram Reza Shafie
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Publication number: 20140323602Abstract: A method and a device for direct printing onto plastic containers, where an intermediate layer is in a first step using a first device applied onto the container to be printed and the container is in a second step using a second device printed in certain areas, and the intermediate layer enters into a bond with the container and the print layer that is insoluble in aqueous solutions having a pH value between 3 and 10, and is very soluble in aqueous solutions having a pH value in a range less than 3 and/or greater than 10; and a recycling method for a plastic container having an intermediate layer applied.Type: ApplicationFiled: April 28, 2014Publication date: October 30, 2014Applicants: KRONES AG, HEIDELBERGER DRUCKMASCHINEN AGInventors: Johann Weigert, Andreas Sonnauer, Florian Lauterbach, Migjen Rrahimi
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Publication number: 20140316018Abstract: 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: ApplicationFiled: December 14, 2012Publication date: October 23, 2014Inventors: Hiromitsu Shimizu, Itsushi Kashimoto
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Patent number: 8865781Abstract: 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: GrantFiled: November 6, 2009Date of Patent: October 21, 2014Assignees: Haydale Limited, Desso Group BVInventor: Ian Walters
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Publication number: 20140303267Abstract: A process for making a solid component out of recycled paint sludge, powder coat and/or latex paint is provided. The process can include providing paint sludge, powder coat and/or latex paint and providing a second material. Thereafter, the paint sludge, powder coat and/or latex paint and the second material are mixed to produce a paint sludge, powder coat and/or latex paint-second material mixture. The paint sludge, powder coat and/or latex paint-second material mixture is processed in order to produce a solid component. The processing can include extrusion of the paint sludge, powder coat and/or latex paint-second material mixture.Type: ApplicationFiled: April 7, 2014Publication date: October 9, 2014Applicant: Preferred Filter RecyclingInventors: Dan Chrzanowski, Brandon Chrzanowski
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Patent number: 8809406Abstract: A composite material is produced from carpet waste and a binding agent, in intimate association, and may also include wood fiber or chips and/or other additives. A method of manufacturing a composite material includes shredding carpet waste, coating the carpet waste with a binding agent, and subjecting the shredded, coated carpet waste to elevated heat and pressure. As an additional step, the composite material may be actively cooled to prevent deformation of the material.Type: GrantFiled: August 29, 2012Date of Patent: August 19, 2014Assignee: Material Innovations LLCInventors: David E. Murdock, Douglas Mancosh, James P. Przybylinski
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Patent number: 8809405Abstract: 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.Type: GrantFiled: May 25, 2012Date of Patent: August 19, 2014Assignee: TexTile Rubber & Chemical Co., Inc.Inventor: Leslie Jay Taylor
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Publication number: 20140213673Abstract: In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention relates to homogenized post-consumer polyethylene terephthalate. In a further aspect, the invention relates to extruded polymer compositions, polymer mixtures, fibers, and/or Bulked Continuous Filament fibers comprising post-consumer polyethylene terephthalate. In a further aspect, the invention relates to processes for preparing recycled polyethylene terephthalate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.Type: ApplicationFiled: March 11, 2013Publication date: July 31, 2014Inventors: Hubert J. Booth, Christopher Eric Bradley, Daniel Ray Johnson, James Henry Keen, JR.
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Patent number: 8771583Abstract: Polyester compositions described herein have properties which are particularly suitable for extrusion blow molding (EBM). These properties relate primarily to the rate of crystallization and melt strength or melt viscosity. Articles prepared from the polyester compositions exhibit good clarity, aesthetics, and other physical properties. The polyester compositions also exhibit broad molecular weight distribution (MWD), resulting in improved processability and melt strength. The crystallization rate allows for good drying characteristics while also enabling the use of regrind. In addition, the compositions exhibit improved recyclability, such as in existing PET recycling streams. In one aspect, articles are prepared in an extrusion blow molding method by combining a dry first polyester copolymer component, a dry second polyester component, and a chain extender to form a feed material suitable for extrusion blow molding.Type: GrantFiled: March 22, 2013Date of Patent: July 8, 2014Assignee: Pepsico, Inc.Inventor: Clarence Sequeira
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Patent number: 8741972Abstract: In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention relates to homogenized post-consumer polyethylene terephthalate. In a further aspect, the invention relates to extruded polymer compositions, polymer mixtures, fibers, and/or Bulked Continuous Filament fibers comprising post-consumer polyethylene terephthalate. In a further aspect, the invention relates to processes for preparing recycled polyethylene terephthalate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.Type: GrantFiled: September 30, 2009Date of Patent: June 3, 2014Assignee: Columbia Insurance CompanyInventors: Hubert J. Booth, Christopher Eric Bradley, Daniel Ray Johnson, James Henry Keen, Jr.
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Patent number: 8735457Abstract: In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention relates to homogenized post-consumer polyethylene terephthalate. In a further aspect, the invention relates to extruded polymer compositions, polymer mixtures, fibers, and/or Bulked Continuous Filament fibers comprising post-consumer polyethylene terephthalate. In a further aspect, the invention relates to processes for preparing recycled polyethylene terephthalate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.Type: GrantFiled: September 30, 2009Date of Patent: May 27, 2014Assignee: Columbia Insurance CompanyInventors: Hubert J. Booth, Christopher Eric Bradley, Daniel Ray Johnson, James Henry Keen, Jr.
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Publication number: 20140135412Abstract: Method for removing a foreign substance from a polymer composition including subjecting a polymer composition to a medium selected from the group comprising chemical reagents, electron beam radiation, electromagnetic radiation, or combinations thereof, removing the transformed foreign substance from the polymer composition, where the foreign substance is by subjecting the polymer composition to the medium at least partially transformed into a form that facilitates removal from the polymer composition.Type: ApplicationFiled: October 16, 2013Publication date: May 15, 2014Applicant: KRONES AGInventor: Thomas Friedlaender
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Patent number: 8703833Abstract: 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: GrantFiled: May 14, 2013Date of Patent: April 22, 2014Assignee: The Diller CorporationInventors: Kevin O'Brien, Dave Swenson
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Publication number: 20140088210Abstract: A process of decolorizing dyed thermoplastics are provided that includes intermixing a dyed thermoplastic with a decolorization agent solution at a temperature that maintains the crystalline structure of the thermoplastic. The processes for the first time are capable of removing substantial portions of dye from the thermoplastic providing a material that is suitable for recycling processes and use in subsequent recycled articles.Type: ApplicationFiled: September 24, 2013Publication date: March 27, 2014Applicant: RADCO Infusion Technologies, LLCInventors: Richard Yorde, Rick Anderson
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Patent number: 8680167Abstract: The invention relates to a composition comprising (a) from 5 to 99 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and (2) has at least one residue derived from the polyethylene terephthalate component, and (b) at least 1 wt % of a filler component. In one embodiment, the invention relates to an article molded from the above-mentioned molding composition. In another embodiment, the invention relates to methods for making and methods for using the molding composition.Type: GrantFiled: January 25, 2007Date of Patent: March 25, 2014Assignee: Sabic Innovative Plastics IP B.V.Inventors: Parminder Agarwal, Kristen Cohoon, Shellie Virginia Gasaway, Ganesh Kannan, Sung Dug Kim, Kenneth Frederick Miller, Dhaval Shah
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Patent number: 8680229Abstract: The present invention is aimed to provide a method for producing a polyester with reduced CD content and elution amount, in which even after the production method, a reduction in physical properties of the polyester is small, and furthermore, a polyester having good moldability can be produced, and the present invention is concerned with a method for producing a polyester including an esterification reaction step of allowing an aliphatic diol and an aliphatic dicarboxylic acid to react with each other; a step of pelletizing a polyester obtained through the esterification reaction step; and a contact treatment step of bringing the obtained polyester pellets into contact with a mixed solution containing ethanol and water, wherein the mixed solution contains water in an amount of 10% by mass or more and not more than 99% by mass relative to the whole of the mixed solution.Type: GrantFiled: March 27, 2013Date of Patent: March 25, 2014Assignee: Mitsubishi Chemical CorporationInventors: Naoya Maeda, Shinichiro Matsuzono, Takayuki Suzuki, Hiromichi Matsui
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Patent number: 8669297Abstract: Backings for carpet and carpet tiles are formed from various post-consumer and/or post-industrial polymeric waste materials, for example, post-consumer textile waste material (e.g., carpet and carpet tiles), post-industrial textile waste material (e.g., carpet and/or carpet tiles), and/or other post-consumer and/or post-industrial polymeric materials.Type: GrantFiled: May 23, 2011Date of Patent: March 11, 2014Assignee: Tandus Flooring, Inc.Inventors: Paul D. Evans, Jr., Gabe Moore
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Patent number: 8653150Abstract: 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: GrantFiled: March 26, 2009Date of Patent: February 18, 2014Assignees: Panasonic Corporation, International Center for Environmental Technology TransferInventors: Takumi Izumitani, Takaharu Nakagawa, Masaru Hidaka, Keishi Shibata, Junko Matsui
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Patent number: 8614259Abstract: A process for making a solid component out of recycled powder coat is provided. The process can include providing a powder coat material and providing a second material. Thereafter, the powder coat and the second material are mixed to produce a powder coat-second material mixture. The powder coal-second material mixture is processed in order to produce a polymer containing precursor. The processing can include granulating or densifying the powder coat-second material mixture. After the precursor has been produced, it can be placed within a molding machine and a solid component is molded. The molding machine can be an injection molding machine, an extrusion molding machine or a blow molding machine.Type: GrantFiled: April 25, 2012Date of Patent: December 24, 2013Assignee: PFR Patent Holding Company, LLCInventors: Dan Chrzanowski, Brandon Chrzanowski
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Patent number: 8580124Abstract: A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.Type: GrantFiled: October 28, 2010Date of Patent: November 12, 2013Assignees: Queen's University at Kingston, GreenCentre CanadaInventors: Philip G. Jessop, Lam N. Phan, Andrew J. Carrier, Rui Resendes, Dominik Wechsler
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Patent number: 8557882Abstract: 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: GrantFiled: January 31, 2013Date of Patent: October 15, 2013Assignee: Krones AGInventors: Thomas Friedlaender, Thomas Rieckmann, Frank Marx
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Publication number: 20130261197Abstract: An additive for use in a wash solution of a PET recycling process is described. The PET recycling process includes the steps of sorting the scrap PET to remove other materials, granulating or shredding the scrap PET to produce PET flakes, and washing the PET to remove contaminants. The Wash step comprises the steps of contacting the PET flakes with a wash solution comprising: (a) an alkali hydroxide; and (b) an additive comprising: (i) at least one non-ionic surfactant; (ii) at least one cationic surfactant; (iii) a hydrotrope; (iv) water, and (V) optionally, a solvent.Type: ApplicationFiled: April 3, 2012Publication date: October 3, 2013Inventors: Luigi Bacchiocchi, Gianluca Pozzi