公开(公告)号：US20210047472A1

公开(公告)日：2021-02-18

申请号：US16322646

申请日：2017-07-13

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun ,  Yueyan Zhang

IPC: C08G75/16

Abstract: An iterative approach to dynamic covalent polymerizations of elemental sulfur with functional comonomers to prepare sulfur prepolymers that can further reacted with other conventional, commercially available comonomers to prepare a wider class of functional sulfur polymers. This iterative method improves handling, miscibility and solubility of the elemental sulfur, and further enables tuning of the sulfur polymer composition. The sulfur polymers may be a thermoplastic or a thermoset for use in elastomers, resins, lubricants, coatings, antioxidants, cathode materials for electrochemical cells, and polymeric articles such as polymeric films and free-standing substrates.

公开(公告)号：US20200207933A1

公开(公告)日：2020-07-02

申请号：US16622875

申请日：2018-06-14

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun ,  Richard S. Glass ,  Kyle Carothers ,  Yueyan Zhang

IPC: C08J3/26 ,  C08G75/0209 ,  C08G75/0222

Abstract: Methods of vulcanization using a high content sulfur polymer, instead of elemental sulfur, have been developed. These high sulfur content polymers are referred to as Chalcogenide Hybrid Inorganic/Organic Polymers (CHIP) materials and have good polymer compatibility in that they are soluble in a number of polymers. Furthermore, CHIP materials may have weaker bonds than the S—S bonds of elemental sulfur and thus provide for a higher crosslinking efficiency vulcanization.

公开(公告)号：US20190338076A1

公开(公告)日：2019-11-07

申请号：US16512809

申请日：2019-07-16

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun

IPC: C08G75/16 ,  C01B17/96 ,  A61K31/795 ,  A01N41/12 ,  H01M4/60 ,  C08L81/04 ,  C01B3/04 ,  A01N59/02

Abstract: Compositions of flame retardants and methods of enhancing char formation in a flame retardant-treated substrate. A base material is combined with a flame retardant to form the flame retardant-treated substrate. The flame retardant contains a sulfur copolymer prepared by the polymerization of sulfur monomers with organic monomers. The flame retardant can be deposited on a surface of the base material, coated on the base material, or mixed into the base material. When the flame resistant substrate is on fire, the flame retardant forms a charring layer on the flame retardant-treated substrate. The charring layer can extinguish and prevent the fire from spreading.

公开(公告)号：US10016486B1

公开(公告)日：2018-07-10

申请号：US14956042

申请日：2015-12-01

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun ,  Theodore J. Price ,  Gregory D. Dussor ,  Dipti Tillu ,  Bo Lian

IPC: A61K31/05 ,  A61K31/155 ,  A61K31/4365 ,  A61K31/7056 ,  A61K31/4375 ,  A61K31/4439 ,  A61K31/616 ,  A61K38/22 ,  A61K38/02 ,  A61K38/20 ,  A61K38/18

CPC classification number: A61K38/2264 ,  A61K9/0014 ,  A61K9/06 ,  A61K31/05 ,  A61K31/155 ,  A61K31/4365 ,  A61K31/4375 ,  A61K31/4439 ,  A61K31/616 ,  A61K31/7056 ,  A61K38/02 ,  A61K38/185 ,  A61K38/204

Abstract: Methods and compositions using a combination of adenosine monophosphate protein kinase (AMPK) activators for treating pain such as post-surgical pain or development of chronic pain. The two or more AMPK activators work synergistically and may be administered in individually sub-efficacious doses. The AMPK activators may have different mechanisms of AMPK activation. The AMPK activators may be administered systemically and/or topically in, for example, as a gel, ointment, cream, lotion, suspension, liquid, or transdermal patch.

公开(公告)号：US20180079865A1

公开(公告)日：2018-03-22

申请号：US15829248

申请日：2017-12-01

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun ,  Nicholas George Pavlopoulos

IPC: C08G75/16 ,  C08J3/28 ,  A01N59/02 ,  A61K31/795 ,  C01B3/04 ,  C01B17/96 ,  H01M4/60 ,  C08L81/04 ,  A01N41/12 ,  C08G75/14 ,  H01M4/38 ,  H01M10/052

CPC classification number: C08G75/16 ,  A01N41/12 ,  A01N59/02 ,  A61K31/795 ,  C01B3/042 ,  C01B17/96 ,  C08G75/14 ,  C08J3/28 ,  C08J2381/04 ,  C08L81/04 ,  C08L2201/52 ,  H01M4/364 ,  H01M4/38 ,  H01M4/382 ,  H01M4/5815 ,  H01M4/606 ,  H01M4/62 ,  H01M10/052 ,  Y02T10/7011

Abstract: Compositions and methods of producing composite materials for use as a cathode in electrochemical cells. Elemental sulfur is mixed with tungsten sulfide (WS2) to form a composite mixture. Organic comonomers may be added to the composite mixture. The composite mixture is reacted to form the composite material. Electrochemical cells with cathodes containing the composite material demonstrated improved battery performance.

公开(公告)号：US12298472B2

公开(公告)日：2025-05-13

申请号：US17282278

申请日：2019-10-01

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun ,  Robert A. Norwood ,  Abhinav Nishant ,  Laura Anderson ,  Tristan Kleine

IPC: G02B1/111 ,  C09D5/00 ,  C09D181/02 ,  C09D185/00

Abstract: The present invention provides certain CHIP films and coatings, as well as the preparation and uses thereof. Chalcogenide hybrid organic/inorganic polymers or CHIPs may be suitable for use in antireflection coatings for use with infrared optics, for example as applied to lenses for infrared cameras. The coatings may be applied with spin coating and have a thickness related to the quarter wavelength of the desired infrared wavelengths.

公开(公告)号：US20240166910A1

公开(公告)日：2024-05-23

申请号：US18554239

申请日：2022-04-08

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Robert Norwood ,  Dong-Chul Pyun ,  Stanley Pau ,  Roland Himmelhuber ,  Linan Jiang ,  Thomas Koch ,  Kyungjo Kim ,  Sasaan Showgi ,  Tristan Kleine ,  Abhinav Nishant ,  Julie Frish

IPC: C09D125/18 ,  C09D5/33 ,  G02B6/122 ,  G03F7/038 ,  G03F7/039

CPC classification number: C09D125/18 ,  C09D5/004 ,  G02B6/1228 ,  G03F7/038 ,  G03F7/039

Abstract: A photonic device including a first waveguide and a second waveguide is provided. The device includes an interconnect coupled with the first waveguide and the second waveguide. The interconnect includes a substrate. The interconnect includes a film including a refractive index contrast (RIC) polymer and a core. The core includes a first domain having a first refractive index. The core includes a second domain adjacent to the first domain and having a second refractive index. The second refractive index is less than the first refractive index. The core includes a third domain adjacent to the second domain and having a third refractive index. The third refractive index is less than the second refractive index. The second domain is disposed between the first domain and the third domain. The refractive index of the substrate is less than the first refractive index, the second refractive index, and the third refractive index.

公开(公告)号：US11685797B2

公开(公告)日：2023-06-27

申请号：US16499689

申请日：2018-03-29

Applicant: Arizona Board of Regents on Behalf of the University of Arizona

Inventor： Dong-Chul Pyun ,  Robert A. Norwood ,  Roland Himmelhuber ,  Tristan Stephen Kleine ,  Liliana Ruiz Diaz ,  Laura E. Anderson

IPC: C08F112/14 ,  C07C329/10 ,  G02B1/04

CPC classification number: C08F112/30 ,  C07C329/10 ,  G02B1/04

Abstract: The present invention provides certain polymeric materials, precursors thereof as well as the preparation and uses thereof.

公开(公告)号：US11015023B2

公开(公告)日：2021-05-25

申请号：US16512809

申请日：2019-07-16

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun

IPC: C08G75/16 ,  C01B17/96 ,  A61K31/795 ,  A01N41/12 ,  H01M4/60 ,  C08L81/04 ,  A01N59/02 ,  C01B3/04 ,  H01M10/052 ,  H01M4/38 ,  C08G75/14

Abstract: Compositions of flame retardants and methods of enhancing char formation in a flame retardant-treated substrate. A base material is combined with a flame retardant to form the flame retardant-treated substrate. The flame retardant contains a sulfur copolymer prepared by the polymerization of sulfur monomers with organic monomers. The flame retardant can be deposited on a surface of the base material, coated on the base material, or mixed into the base material. When the flame resistant substrate is on fire, the flame retardant forms a charring layer on the flame retardant-treated substrate. The charring layer can extinguish and prevent the fire from spreading.

公开(公告)号：US10920020B2

公开(公告)日：2021-02-16

申请号：US15857273

申请日：2017-12-28

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Dong-Chul Pyun ,  Rongguang Liang

IPC: B33Y10/00 ,  C08G75/16 ,  H01M4/60 ,  C01B17/96 ,  C08L81/04 ,  C08J3/28 ,  A61K31/795 ,  C01B3/04 ,  A01N59/02 ,  A01N41/12 ,  B29C64/106 ,  B29C64/165 ,  B29C64/124 ,  B33Y70/00 ,  H01M4/38 ,  H01M10/052 ,  C08G75/14

Abstract: Sulfur copolymers having high sulfur content for use as raw materials in 3D printing. The sulfur copolymers are prepared by melting and copolymerizing one or more comonomers with cyclic selenium sulfide, elemental sulfur, elemental selenium, or a combination thereof. Optical substrates, such as films and lenses, are constructed from the sulfur copolymer via 3D printing and are substantially transparent in the visible and infrared spectrum. The optical substrates can have refractive indices of about 1.75-2.6 at a wavelength in a range of about 500 nm to about 8 μm.