Search Results - kyung+seok+kang

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Synthesis of New Polysulfide Materials derived from Sulfur Monochloride with for Optical Material Applications
This invention describes a range of low-cost polymer compositions and method of making for high index, high Abbie number consumer optics. Background: The consumer eyewear global market estimated at greater than $100 billion. Current optical polymer technology revolves around well-established thermoplastic or thermoset polymers, including polycarbonates...
Published: 1/24/2023   |   Inventor(s): Dong-Chul Pyun, Robert Norwood, Jon Njardarson, Kyung Seok Kang
Keywords(s):  
Category(s): Technology Classifications > Engineering & Physical Sciences > Photonics, Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Polymers
Low Cost Flame Retardant Polymers from Low Cost Olefinic Comonomers
This technology is an approach to using sulfenyl-halide polymerization with olefinic comonomers to prepare a new class of intrinsically flame-retardant polymers for the production of a wide range of thermoplastics, thermoplastic elastomers, and thermoset materials. Materials prepared with this technology have afforded a V0 UL-94V flame retardancy rating...
Published: 7/15/2022   |   Inventor(s): Dong-Chul Pyun, Robert Norwood, Jon Njardarson, Richard Glass, Taeheon Lee, Chisom Olikagu, Kyung Seok Kang
Keywords(s):  
Category(s): Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Coatings, Technology Classifications > Materials > Polymers
New Polysulfide Materials derived from Sulfur Monochloride for Flame Retardant Polymers
­This technology is an approach to using sulfenyl-halide polymerization with olefinic comonomers to prepare a new class of intrinsically flame-retardant polymers for the production of a wide range of thermoplastics, thermoplastic elastomers, and thermoset materials. Materials prepared with this technology have afforded a V0 UL-94V flame retardancy...
Published: 9/6/2022   |   Inventor(s): Dong-Chul Pyun, Kyung Seok Kang
Keywords(s):  
Category(s): Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Coatings, Technology Classifications > Materials > Polymers
Consumer Optics with Low Cost Polymers
This invention describes a range of low-cost polymer compositions and method of making for high index, high Abbie number consumer optics. Background: The consumer eyewear global market estimated at greater than $100 billion. Current optical polymer technology revolves around well-established thermoplastic or thermoset polymers, including polycarbonates...
Published: 7/15/2022   |   Inventor(s): Dong-Chul Pyun, Robert Norwood, Jon Njardarson, Richard Glass, Taeheon Lee, Chisom Olikagu, Kyung Seok Kang
Keywords(s):  
Category(s): Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Polymers, Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics > Ophthalmology, Technology Classifications > Imaging & Optics > Optical Fab / Metrology
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: 9/7/2022   |   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: 9/7/2022   |   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