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公开(公告)号：US20250002669A1
公开(公告)日：2025-01-02
申请号：US18749614
申请日：2024-06-21
Applicant: Honda Motor Co., Ltd.
Inventor： Shuta Suzuki , Tsuyoshi Baba , Satoshi Hirawaki
IPC: C08J11/08 , B01D19/00 , B01D21/26 , B01F23/53 , B01F23/80 , B01F35/21 , B01F35/212 , B01F35/221 , B01F35/222 , B01F35/71 , B01F35/92 , B01F101/00 , B29B17/02 , B29K77/00 , B29K105/16 , B29K509/08
Abstract: A dissolution apparatus configured to dissolve a waste resin in a dissolution tank with a solvent. The dissolution apparatus includes: a supply device configured to supply the waste resin and the solvent into the dissolution tank; a heating device configured to heat the waste resin and the solvent supplied to the dissolution tank; a stirrer configured to stir the waste resin and the solvent, heated by the heating device; a torque sensor configured to detect a load torque acting on the stirrer; and a microprocessor. The microprocessor is configured to perform: calculating a viscosity of a solution of the waste resin and the solvent based on the load torque detected by the torque sensor, and controlling at least one of the supply device and the heating device such that the viscosity calculated in the calculating becomes less than a predetermined value.
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公开(公告)号：US12173122B2
公开(公告)日：2024-12-24
申请号：US18144924
申请日：2023-05-09
Applicant: POLYSTYVERT INC.
Inventor： Roland Côté
Abstract: There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in ethylbenzene under conditions to obtain a polystyrene/ethylbenzene mixture, adding the polystyrene/ethyl benzene 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.
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公开(公告)号：US20240410117A1
公开(公告)日：2024-12-12
申请号：US18738846
申请日：2024-06-10
Applicant: USGreentech, L.L.C.
Inventor： Mark A. Heinlein
Abstract: An infilled artificial turf surface [18] includes a particulate infill [24] with at least a top layer [28] that comprises a mixture of Black walnut shell particles [30] and English walnut shell particles [32], the walnut shell particles [30, 32] having been treated so as to eliminate or substantially remove tree nut allergens that are known to activate allergies in some humans. Preferably, treatment occurs via heat treatment in a rotary furnace, which also rounds and smoothes the particles [30, 32]. Particularly if used in the top layer [28] of a particulate infill [24] of an artificial turf surface [18], the shape and size and proportion of the Black walnut shell particles [30] and the English walnut shell particles [32] provide stability for the resulting turf surface [18], while also being able to absorb water applied thereto, thereby to hold moisture and to provide evaporative cooling of the artificial turf surface [18] for up to about five hours.
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公开(公告)号：US20240392094A1
公开(公告)日：2024-11-28
申请号：US18688127
申请日：2022-09-02
Applicant: LG Chem, Ltd.
Inventor： Kyeong Hwan Han , Eunbyeol Ko , Kyoung Hoon Kim , Seungha Kim , Hyung Sop Kim , Gahyeon Lee , Seung Yong Lee , Yoonsun Jang
Abstract: A method for screening a solvent for extracting polyvinyl chloride (PVC) from waste using the following Equation 1: PVC solubility score = x 1 exp ( - x 2 μ pvc sol - x 3 μ dop sol ) + x 4 exp ( - x 5 r pvc - x 6 r dop ) - x 7 exp ( - x 8 V sol ) + x 9 , μij is a chemical potential of the solvent, and in μij, i is a solute and j is the solvent, ri is a Hansen solubility parameter distance of the solvent, Vsol is a molecular volume of the solvent, sol is the solvent, pvc is polyvinyl chloride, and dop is diethylhexyl phthalate. A method for recycling waste is also provided. Additionally, a recycled polyvinyl chloride and a recycled composition are provided.
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公开(公告)号：US20240392093A1
公开(公告)日：2024-11-28
申请号：US18643359
申请日：2024-04-23
Applicant: The Procter & Gamble Company
Inventor： Dimitris Ioannis COLLIAS , Amy Eichstadt WAUN , James CARMONY , John Moncrief LAYMAN
IPC: C08J11/08
Abstract: A method for purifying a contaminated reclaimed polyethylene is provided. The method comprises obtaining the contaminated reclaimed polyethylene, extracting it with a solvent to produce an extracted contaminated reclaimed polyethylene, and then dissolving it in the solvent to produce a first suspension comprising dissolved polyethylene and suspended contaminants. The first suspension is settled to produce a second suspension comprising dissolved polyethylene and suspended remaining contaminants, and the second suspension is purified by contacting it with solid media to produce a third suspension comprising purer polyethylene. Finally, the purer polyethylene is separated from the third suspension and it has virgin-like optical properties.
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Patent Agency Ranking
公开(公告)号：US20240376286A1
公开(公告)日：2024-11-14
申请号：US18691960
申请日：2022-10-03
Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
Inventor： Noriyuki KATO , Katsushi NISHIMORI , Atsushi MOTEGI , Kentaro ISHIHARA , Shoko MURATA SUZUKI , Kazutaka TAKAMATSU
Abstract: Provided is a method of recycling a waste resin composition containing a synthetic resin and organic impurities. A method of manufacturing a dihydroxy compound from a waste resin composition, the method including, a step (a1) in which an alkaline solution containing a first solvent, water, and a waste resin composition containing a resin having at least two constitutional units selected from the group consisting of general formulae (1) to (4) set forth below: is treated to give a reaction solution containing a first solvent and a mixture of dihydroxy compounds containing a first dihydroxy compound selected from the group consisting of general formulae (1′) to (4′) set forth below: and at least one other dihydroxy compound selected from the group consisting of the general formulae (1′) to (4′); and a step (b1) in which the first dihydroxy compound is crystallized from a crystallization solution obtained by adding a second solvent to the reaction solution, wherein a difference between the solubility of the first dihydroxy compound at 25° C. in the second solvent and the solubility of the other dihydroxy compound at 25° C. in the second solvent (solubility of the other dihydroxy compound minus solubility of the first dihydroxy compound) is greater than or equal to 0.1 g/(10 mL).
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公开(公告)号：US20240299863A1
公开(公告)日：2024-09-12
申请号：US18643339
申请日：2024-04-23
Applicant: The Procter & Gamble Company
CPC classification number: B01D11/0288 , B01D11/0203 , B08B3/04 , B29B17/00 , C08J11/08 , B01D11/0292 , B08B2220/00 , B08B2240/00 , B29B2017/0015 , B29B2017/0289 , B29B2017/0293 , B29K2105/26 , C08J7/02 , C08J2300/30
Abstract: The present invention generally relates to a method of reducing contamination from plastics. The resulting purer plastic can be used in demanding applications.
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公开(公告)号：US20240247124A1
公开(公告)日：2024-07-25
申请号：US18628534
申请日：2024-04-05
Applicant: NORTHSTAR CLEAN TECHNOLOGIES INC.
Inventor： Terry Alan CHARLES , Gord JOHNSON , Barry DIEBOLD
IPC: C08J11/08
CPC classification number: C08J11/08 , C08J2395/00
Abstract: The present disclosure provides a method, process and system for recycling an asphalt-based roofing material. In particular, the method, process and system are capable of removing and recovering an aggregate product, fiber product and an asphalt product from the asphalt-based roofing material. The aggregate, fiber and asphalt products each may be reused in a variety of applications.
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9.发明授权公开(公告)号：US11993682B2
公开(公告)日：2024-05-28
申请号：US18121706
申请日：2023-03-15
Applicant: The Procter & Gamble Company
Inventor： Dimitris Ioannis Collias , Amy Eichstadt Waun , James Carmony , John Moncrief Layman
IPC: C08J11/08
CPC classification number: C08J11/08 , C08J2323/06
Abstract: A method for purifying a contaminated reclaimed HDPE is provided. The method comprises obtaining the contaminated reclaimed HDPE, extracting it with a solvent to produce an extracted contaminated reclaimed HDPE, and then dissolving it in the solvent to produce a first suspension comprising dissolved HDPE and suspended contaminants. The first suspension is settled to produce a second suspension comprising dissolved HDPE and suspended remaining contaminants, and the second suspension is purified by contacting it with solid media to produce a third suspension comprising purer HDPE. Finally, the purer HDPE is separated from the third suspension and it has natural-like optical properties.
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公开(公告)号：US11840667B2
公开(公告)日：2023-12-12
申请号：US17859644
申请日：2022-07-07
Applicant: Shuguang Deng , Yixin Liu , Kapil Chandra Akula , Kodanda Phani Raj Dandamudi
Inventor： Shuguang Deng , Yixin Liu , Kapil Chandra Akula , Kodanda Phani Raj Dandamudi
CPC classification number: C10G1/10 , B01D3/145 , B01D53/229 , B01J6/008 , C08J11/08 , C10G1/002 , C08J2323/06 , C10G2300/1003
Abstract: Described herein are systems and methods for the depolymerization of polyethylene-based plastics. In one embodiment, a method is disclosed that comprises combining a polyethylene-based plastic with a solvent in a reactor to generate a plastic solvent mixture, heating the plastic solvent mixture in the reactor, and fractionating the plastic solvent mixture into a gas phase product, a solid phase product, and a liquid phase product. In another embodiment, a system is disclosed that comprises a solvent, and a reactor configured to receive the polyethylene-based plastic and the solvent and convert the polyethylene-based plastic into a gas phase product, a solid phase product, and a liquid phase product, the reactor being configured to operate at a temperature greater than 275° C. and at a pressure greater than 2 megapascals.
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