본 자료는 생태 디자인, 지속 가능한 디자인, 패시브 디자인, 재생 디자인, 업사이클링 및 재활용을 주제로 분류하고 집중적으로 다룬 전 세계 영문 출판물 및 특허를 엄선하여 정리한 온라인 과학 저널 모음입니다.
Sieves for separating plug-like elements and sheet-like materials during recycling of aerosol-generating articles
Patent published on the 2026-10-15 in WO under Ref WO2026215141 by PHILIP MORRIS PRODUCTS S A [CH] (Nicolas Frederic Philippe Christophe [fr])
Abstract: A method of processing a mixed stream of conventional cigarette waste and aerosol-generating article waste, wherein the mixed stream of waste comprises rod-shaped articles comprising plug-like elements wrapped in circumferential wrappers, the method comprising, in sequence, the steps of: i) subjecting the mixed stream of waste to a magnetic separation process so as to separate waste containing metal components from waste not containing metal components; ii) shredding only the waste not containin[...]
Our summary: The method processes a mixed stream of cigarette and aerosol-generating waste. It involves magnetic separation to isolate metal components, followed by shredding to open wrappers. Finally, a sieve separates plug-like elements from sheet-like materials.
Sieves, Recycling, Magnetic Separation, Shredding
Patent
Polymeric processing or recycling, involving dye removal, including reagents, intermediates, and/or products
Patent published on the 2026-10-15 in WO under Ref WO2026217858 by MACROCYCLE TECH INC [US] (Rosenboom Jan-georg [us], Feinberg Thanaphorn [us], Terreni Edoardo [us])
Abstract: Methods for separating dye contaminants from polymers are generally described. Certain aspects of this disclosure relate to methods for removing a dye from an article or polymer feedstock. In some embodiments, the polymer comprises a polyester. In some embodiments, the article or polymer feedstock comprises textile waste or packaging waste.[...]
Our summary: This content discusses methods for removing dye contaminants from polymers, particularly focusing on polyester. It includes the use of reagents and intermediates for dye removal from textile and packaging waste. The methods aim to enhance polymer recycling and processing efficiency.
polymeric processing, dye removal, recycling methods, polyester
Patent
Process for reclaiming and recycling solid surface
Patent published on the 2026-10-15 in US under Ref US20260318818 by DUPONT SAFETY & CONSTRUCTION INC [US] (Pollak Keith William [us])
Abstract: Processes for reclaiming and recycling solid surface into a desired manufacturer s solid surface manufacturing process and methods used therein; specifically methods for identifying a manufacturing source of a test sample of solid surface comprising an acrylic polymeric matrix and alumina trihydrate (ATH), including generating a reference set of characteristics related to either the percent area covered by the ATH particles, the ATH particle count, and the minor axis length of a best-fit ellipse[...]
Our summary: The process involves reclaiming solid surface materials for recycling. It identifies the manufacturing source of a test sample through non-destructive analysis. Key characteristics such as ATH particle metrics and elemental concentrations are compared to reference sets.
recycling, solid surface, acrylic polymer, manufacturing source
Patent
Method for depolymerizing polyethylene terephthalate (pet) using reactive distillation
Patent published on the 2026-10-15 in US under Ref US20260317294 by INHA UNIV RESEARCH AND BUSINESS FOUNDATION [KR] (Kim Seongje [kr], Jeon Hongchan [kr], Song Ha Hyun [kr], Kim Hee Joong [kr])
Abstract: The present disclosure relates to a method for depolymerizing polyethylene terephthalate using reactive distillation. The method for depolymerizing polyethylene terephthalate of the present disclosure allows for efficient purification and recovery of depolymerization products, and using the method, a closed-loop recycling process improving on existing PET recycling technologies are designed.[...]
Our summary: The method efficiently depolymerizes polyethylene terephthalate using reactive distillation. It enables purification and recovery of depolymerization products. The process contributes to a closed-loop recycling system that enhances existing PET recycling technologies.
depolymerization, polyethylene terephthalate, reactive distillation, recycling
Patent
Recycling of cartridges
Patent published on the 2026-10-14 in EP under Ref EP4821972 by HENKEL AG & CO KGAA [DE] (Schafhausen Niklas [de], Dunekake Ralf [de], Gutacker Andrea [de])
Abstract: The invention relates to a process for recycling cartridges of plastic comprising at least one silicone formulation, wherein the cartridges have a tube body which is open at one end, is closed at the other end by a lid with a threaded nozzle for a nozzle and a piercable inner opening, and in which a piston is arranged in a movable manner, by which processa) the cartridges are preferably first aligned in such a way that they are pressed and fixed with their threaded nozzle to a ring stop which fr[...]
Our summary: The process involves aligning cartridges with a threaded nozzle to a ring stop, cutting off the cartridge tip, and pushing out the piston. The silicone formulation is separated and depolymerized using a base catalyst, alcohol, and water at elevated temperatures. This method efficiently recycles plastic cartridges containing silicone formulations.
Recycling, Cartridges, Silicone, Depolymerization
Patent
Recycling of polyurethane waste to yield hydroxy- and epoxy-group terminated polyoxazolidinones
Patent published on the 2026-10-14 in EP under Ref EP4821961 by COVESTRO DEUTSCHLAND AG [DE] (Latorre Martinez Irene Cristina [de], Yogendra Sivathmeehan [de], Wolf Aurel [de], Movahhed Sohajl [de], Laemmerhold Kai [de], Guertler Christoph [de], Klein Patrick [de], AmmenhÄuser Robin [de], Woods Laura [nz])
Abstract: [0001] The invention is related to a process for producing an oxazolidinone composition comprising the reaction of a compound (A) with a compound (B) in the presence of a catalyst (C), wherein the compound (A) contains three or more urethane-groups (A-1) and/or at least one isocyanurate-group (A-2), preferably urethane-groups (A-1), wherein the compound (A) is free of isocyanate groups, and wherein the compound (B) is a mono- or polyepoxide compound (B-1) with two or more epoxy groups and/or gly[...]
Our summary: The invention describes a process for producing oxazolidinone compositions from polyurethane waste. It involves the reaction of a compound with urethane or isocyanurate groups with a polyepoxide compound. The process yields hydroxy- and epoxy-group terminated polyoxazolidinones.
Polyurethane, Recycling, Oxazolidinone, Epoxy
Patent
research on heterogeneity in willingness to pay for environmental premiums across age cohorts
Published on 2026-09-01 by @OXFORD
Abstract: AbstractIncreasingly central to discussions on low-carbon and climate governance is understanding the social and psychological drivers of public low-carbon consumption behavior, which is crucial for advancing effective climate mitigation policies. The impact of participation in collective recycling and concerns over food hygiene inequality on public willingness to pay for environmental premiums (WTP) remains a gap. Based on four age-stratified groups (T1–T4), this study investigates how food h[...]
Our summary: This study investigates the impact of food hygiene anxiety and recycling participation on willingness to pay for environmental premiums across different age groups. It finds that collective recycling initiatives enhance willingness to pay, particularly among younger individuals. The research highlights the role of food safety concerns and environmental stewardship in shaping economic preferences related to environmental actions.
willingness to pay, environmental premiums, age cohorts, recycling practices
Publication
Development and validation of a continuous viscosity homogenization treatment system
Published on 2026-08-06 by Hiroki Endo, Takeharu Isaki, Weng On Yah, Yasunori Sato, Tsutomu Takahashi @NATURE
Abstract: Polymer Journal, Published online: 06 August 2026; doi:10.1038/s41428-026-01243-9A concept for continuous viscosity homogenization was proposed. The system was developed using tandem extruder with a custom-designed in-line rheometer and feedforward control algorithm on the basis of Tsenoglou’s blending theory, enabling realtime viscosity measurement and continuous adjustment of the adjuster blending ratio to achieve a prescribed target viscosity. Validation experiments using three virgin polyp[...]
Our summary: A continuous viscosity homogenization system was developed using a tandem extruder and in-line rheometer. The system employs a feedforward control algorithm based on Tsenoglou’s blending theory for real-time viscosity measurement. Validation with polypropylene grades showed successful viscosity control under varying feed conditions.
viscosity homogenization, tandem extruder, in-line rheometer, feedforward control
Publication
