Search Results - polymers

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Toward Wet Wipes that Turn into Toilet Paper when Flushed
Project ID: TECH-2023-20 Background Wet wipes have been shown to clog pipes and pumps in wastewater collection and treatment systems. Additionally, wet wipes contain microplastics that contribute to water pollution. Some governments are proposing restrictions or complete bans on wet wipe products. Therefore, there is a need for a truly flushable...
Published: 6/25/2024   |   Inventor(s): Yakov Lapitsky, Kunal Choudhuri, Umberto Kober
Keywords(s):  
Category(s): Polymers, Biomass Conversion & Recycling
Nanoparticles as Catalyst for Formation of Rigid Organic Polymers with Controlled Polymerization
Overview Polybenzoxazole (PBO) fibers have usually been made by condensing diaminobenzene diol and terephthalic acid with polyphosphoric acid (PA), which serves as both solvent and catalyst. The use of PA, however, causes the PBO fibers to be contaminated with PA units. We have invented a nanoparticle (NP)-based catalytic method to synthesize functional...
Published: 5/24/2023   |   Inventor(s): Shouheng Sun, Christopher Seto, Chao Yu, Xuefeng Guo
Keywords(s):  
Category(s): Polymers, Catalyst
Tie Layers for Recyclable Barrier Films
Project ID: D2022-11 Background Multilayer packaging consists of thin layers of materials adhered on top of one another. The composition of layers is chosen based on performance needs, such as protection from moisture, oxygen, light, odor, flavor, or abrasion. Although these varying material properties contribute to performance advantages, they also...
Published: 5/21/2024   |   Inventor(s): Yakov Lapitsky, Maria Coleman, Joseph Lawrence, Jose Carlos Benalcazar Bassante
Keywords(s):  
Category(s): Biomass Conversion & Recycling, Polymers
Selective recovery of polypropylene (and polyethylene) from mixed plastic wastes
Project ID: D2021-43 Background Polypropylene (PP) is a thermoplastic polymer used in packaging materials, consumer goods, automotive components, and medical devices. It is difficult to recover PP from mixed plastic waste streams; PP has a similar density to polyethylene (PE) and cannot be selectively separated from PE via the sink-float methods...
Published: 6/18/2024   |   Inventor(s): Parikshit Sarda, Balakrishna Maddi, Joseph Lawrence, Sridhar Viamajala
Keywords(s): Polyethylene, Polypropylene, Recycling, Sustainability
Category(s): Manufacturing, Polymers, Biomass Conversion & Recycling
Novel Class of Materials for Boron Extraction
Project ID: D2009-11 Background Solid Phase Microextraction (SPME) has gained widespread acceptance and use in laboratories due to the fact that it is a solvent-less extraction technique, its mode of operation is relatively simple, easy to automate, and sampling and sample preparation are combined into one step. Until now, methods that coat SPME...
Published: 5/9/2024   |   Inventor(s): Jared Anderson, Fei Zhao, Yunjing Meng
Keywords(s): Boron, Extraction, Ionic Liquids, Purification, Separation membranes
Category(s): Coatings, Polymers, Materials
Functionally graded graphene transient electronics
Project ID: D2018-22Background It is estimated that electronics account for 42 million tons of waste per year worldwide. As a result, electronic manufacturers have become interested in transient electronics. They contain environmentally benign components that can be degraded over time in a natural environment. Transient electronics can be used to better...
Published: 6/18/2024   |   Inventor(s): Syed Reza Rizvi, Sheikh Rasel, Omkar Bhatkar, David Young
Keywords(s): Battery, Compostable, Electronics, Film, Graphene, Graphene oxide, Semi-conductors, Sensor, Transient
Category(s): Materials, Electrical, Polymers
Enhanced Anti-Fouling Properties of Novel Composite Material
Project ID: D2013-31 Novelty: Development of a novel electromagnetic polymer composite material for enhanced anti-fouling effects. Background: Biofouling (bacterial attachment to solid surfaces and colonization) is the main source of bacterial infection and poses potentially harmful impacts on human health. Medical devices, food packaging, and drinking...
Published: 6/18/2024   |   Inventor(s): Dong Shik Kim, Youngwoo Seo
Keywords(s): Biofouling, Cardanol, Coating, Infection, Urinary tract catheter
Category(s): Polymers, Materials, Coatings
Pyrrole-Based Composites for Metal Extraction and Analysis
Project ID#: D2018-57Invention DescriptionThe researchers at the University of Toledo have developed a chelating polypyrrole powder that can be used for filtration by directly mixing with samples and passing the sample through a filter. Desorption is then accomplished by simply dropping the pH. Applications• Selective microextraction devices•...
Published: 6/18/2024   |   Inventor(s): Jon Kirchhoff, Ahmad Rohanifare
Keywords(s): Chelator, Extraction, Filtration, Metal, Purification, Pyrrole, Solid-phase microextraction , Sorbent, SPME
Category(s): Materials, Polymers
Charge mosaic membranes for desalination of brackish water
Project #D2019-22Background Reverse osmosis is a common technique used in desalination; it utilizes high pressure to separate water from salt. Although this separation technique is widely used for desalination, it would be advantageous to use a membrane that allows for selective transport of salt relative to water. Charge mosaic (CM) membranes...
Published: 6/18/2024   |   Inventor(s): Glenn Lipscomb, Ghazaleh Vaseghi
Keywords(s): Charge mosaic, Desalination, Membrane, Piezodialysis
Category(s): Polymers
Pressure sensitive polymer films with reversible porosity
Project ID: D2018-23BackgroundPressure sensing is used in the automobile, packaging, food, and pharmaceutical industries. Commercially available pressure-sensing films rely on a reaction created when microcapsules burst upon applied pressure. However, these films only function in a limited temperature range and do not work in wet or oily environments....
Published: 6/18/2024   |   Inventor(s): Syed Reza Rizvi, Sheikh Rasel, Emran Bhulyan, Navid Namdari, Bilal Nizar Halim
Keywords(s): Film, Foam, Porosity, Pressure, Temperature
Category(s): Materials, Polymers
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