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Polyols from Elemental Sulfur and Elastomeric Polyurethanes
This invention consists of novel sulfur-based polyol polymers which are highly soluble in polar organic solvents and are made in a single chemical step from elemental sulfur. This chemistry enables new polyurethane compositions from sulfur comonomers. The method of synthesis can be easily scaled to large-scale production, and can be processed into water...
Published: 3/27/2020   |   Inventor(s): Kyung Seok Kang, Dong-Chul Pyun, Taeheon Lee
Keywords(s):  
Category(s): Technology Classifications > Energy, Cleantech & Environmental > Petrochemical, Technology Classifications > Materials > Polymers, Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Coatings
Sulfur Based Polyols for Polyurethanes and Novel Polymeric Materials, including Nonhalogenated Flame Retardants
University of Arizona researchers developed flame retardant sulfur-based polymers that are highly soluble in polar solvents and are made in a single chemical step from elemental sulfur, a low-value byproduct of oil refining and gas processing. This chemistry enables new polyurethane compositions, including non-halogenated flame retardants. The method...
Published: 3/27/2020   |   Inventor(s): Kyung Seok Kang, Dong-Chul Pyun
Keywords(s):  
Category(s): Technology Classifications > Energy, Cleantech & Environmental > Petrochemical, Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Polymers
Automated Conversion of Corrosion Current to Corrosion Rate
This invention is an automated program to be used to convert corrosion data derived from polarization (current vs. voltage) curves to corrosion rates in units of micron per year. The automated analysis calculates corrosion rates in an unambiguous and automatic way. It is less time-consuming and arbitrary than the conventional graphical analysis used...
Published: 9/17/2019   |   Inventor(s): Nicholas McEvoy, Dominic Gervasio
Keywords(s):  
Category(s): Technology Classifications > Energy, Cleantech & Environmental > Remediation, Technology Classifications > Energy, Cleantech & Environmental > Energy Collection, Storage & Battery, Technology Classifications > Energy, Cleantech & Environmental > Petrochemical
Copolymerization of Elemental Sulfur and Functional Styrenics
This invention relates to polymeric compositions. In particular, the attractive chemical accessibility and functional diversity of styrenic comonomers used with elemental sulfur to prepare a new chemical platform for sulfur-based polymeric materials and to further enable post-polymerization modifications for improving the properties of sulfur-based...
Published: 7/31/2019   |   Inventor(s): Dong-Chul Pyun
Keywords(s):  
Category(s): Technology Classifications > Energy, Cleantech & Environmental > Energy Collection, Storage & Battery, Technology Classifications > Energy, Cleantech & Environmental > Fuel Cells, Technology Classifications > Energy, Cleantech & Environmental > Petrochemical, Technology Classifications > Engineering & Physical Sciences > Electronics > Assembly and Packaging, Technology Classifications > Materials > Polymers
Cathodic Protection of Metal Surface Inside Pipe Filled with Molten Salt
This invention provides an electrochemical method for detecting and arresting corrosion at the metal-molten salt interface, a location that, until now, was difficult to treat. While many of the pipes used in transfer of molten salt are resistant to corrosion on the exterior, this technology is the first to treat the interior of the pipe. Its novel design...
Published: 10/26/2018   |   Inventor(s): Dominic Gervasio
Keywords(s):  
Category(s): Technology Classifications > Engineering & Physical Sciences, Technology Classifications > Energy, Cleantech & Environmental > Energy Collection, Storage & Battery, Technology Classifications > Energy, Cleantech & Environmental > Petrochemical, Technology Classifications > Energy, Cleantech & Environmental > Renewable Energy, Technology Classifications > Energy, Cleantech & Environmental > Renewable Energy > Solar/Photovoltaic