Patents by Inventor Junzuo Wang

Junzuo Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Nanocrystal preparation method, nanocrystals, and apparatus for preparing and storing dissolved gas
    Patent number: 10519038
    Abstract: A nanocrystal preparation method comprises the following steps: dissolving, in a first selected solvent, a first precursor which is in a gaseous state under normal temperature and normal pressure, to form a first precursor solution; dissolving a second precursor in a second selected solvent to form a second precursor solution, wherein the second precursor is a precursor of a metal element of Group I, Group II, Group III or Group IV; and in an inert gas atmosphere, adding the first precursor solution into a reaction vessel which contains the second precursor solution, wherein the first precursor chemically reacts with the second precursor to generate a nanocrystal. The present invention further discloses a nanocrystal prepared by the above method and an apparatus for preparing and storing a gas-dissolved solution.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: December 31, 2019
    Assignee: SUZHOU XINGSHUO NANOTECH CO., LTD.
    Inventors: Yunjun Wang, Junzuo Wang
  • NANOCRYSTAL PREPARATION METHOD, NANOCRYSTALS, AND APPARATUS FOR PREPARING AND STORING DISSOLVED GAS
    Publication number: 20190055126
    Abstract: A nanocrystal preparation method comprises the following steps: dissolving, in a first selected solvent, a first precursor which is in a gaseous state under normal temperature and normal pressure, to form a first precursor solution; dissolving a second precursor in a second selected solvent to form a second precursor solution, wherein the second precursor is a precursor of a metal element of Group I, Group II, Group III or Group IV; and in an inert gas atmosphere, adding the first precursor solution into a reaction vessel which contains the second precursor solution, wherein the first precursor chemically reacts with the second precursor to generate a nanocrystal. The present invention further discloses a nanocrystal prepared by the above method and an apparatus for preparing and storing a gas-dissolved solution.
    Type: Application
    Filed: November 24, 2015
    Publication date: February 21, 2019
    Applicant: Suzhou Xingshou Nanotech Co., Ltd.
    Inventors: Yunjun Wang, Junzuo Wang
  • Process for the preparation of DOPO-derived compounds and compositions thereof
    Patent number: 9012546
    Abstract: This invention relates to a process for producing compounds derived from 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide (DOPO). In particular, the invention relates to producing DOPO-derived compounds by reacting DOPO with diol compounds in the presence of a catalyst. This invention also relates to DOPO derived composition containing a high melting point diastereomer. The DOPO derived compounds may be useful as flame-retardants.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 21, 2015
    Assignee: Albemarle Corporation
    Inventors: Qiang Yao, Junzuo Wang, Arthur G. Mack
  • Brominated flame retardants and precursors therefor
    Patent number: 8933159
    Abstract: Described are a particular group of novel aromatic hydrocarbon telomers that, on bromination, result in the formation of novel flame retardants having a uniquely beneficial combination of properties. The resultant flame retardants and uses thereof are also described. The disclosure includes descriptions of methods for preparing both the aromatic hydrocarbon telomers and the brominated flame retardant polymers.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: January 13, 2015
    Assignee: Albemarle Corporation
    Inventors: William J. Layman, Jr., Charles H. Kolich, Arthur G. Mack, Jonathan P. McCarney, Govindarajulu Kumar, Jorge Morice, Zhongxin Ge, Bo Liu, Douglas W. Luther, Kimberly M. White, Bruce C. Berris, Junzuo Wang
  • Toluene and styrene derived telomer distributions and brominated flame retardants produced therefrom
    Patent number: 8648140
    Abstract: This invention relates to novel and useful toluene and styrene derived telomer distributions, such distributions being desirable substrates for the preparation of brominated flame retardants.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 11, 2014
    Assignee: Albemarle Corporation
    Inventors: William J. Layman, Jr., Charles H. Kolich, Arthur G. Mack, Steven A. Anderson, Jonathan P. McCarney, Junzuo Wang
  • Bromination of telomer mixtures derived from toluene and styrene
    Patent number: 8642821
    Abstract: This invention relates to novel and useful toluene and styrene derived telomer distributions, such distributions being desirable substrates for the preparation of brominated flame retardants.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 4, 2014
    Assignee: Albemarle Corporation
    Inventors: William J. Layman, Jr., Charles H. Kolich, Arthur G. Mack, Steven A. Anderson, Jonathan P. McCarney, Jorge Morice, Zhongxin Ge, Junzuo Wang
  • Branched and star-branched styrene polymers, telomers, and adducts, their synthesis, their bromination, and their uses
    Patent number: 8476373
    Abstract: New branched or star-branched styrene polymeric, telomeric, and monomeric product distributions, their preparation, their use as raw materials for bromination to produce flame retardants, the flame retardants themselves, and their use as flame retardants in various polymeric substrates are described.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: July 2, 2013
    Assignee: Albemarle Corporation
    Inventors: William J. Layman, Jr., Charles H. Kolich, Arthur G. Mack, Jonathan P. McCarney, Govindarajulu Kumar, Jorge Morice, Zhongxin Ge, Bo Liu, Douglas W. Luther, Kimberly M. White, Junzuo Wang, Ravindra R. Joshi, Hoover B. Chew
  • Process For The Preparation Of Dopo-Derived Compounds And Compositions Thereof
    Publication number: 20130018128
    Abstract: This invention relates to a process for producing compounds derived from 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide (DOPO). In particular, the invention relates to producing DOPO-derived compounds by reacting DOPO with diol compounds in the presence of a catalyst. This invention also relates to DOPO derived composition containing a high melting point diastereomer. The DOPO derived compounds may be useful as flame-retardants.
    Type: Application
    Filed: March 28, 2011
    Publication date: January 17, 2013
    Applicant: ALBEMARLE CORPORATION
    Inventors: Qiang Yao, Junzuo Wang, Arthur G. Mack
  • Bromination of Telomer Mixtures Derived From Toluene and Styrene
    Publication number: 20110224467
    Abstract: This invention relates to novel and useful toluene and styrene derived telomer distributions, such distributions being desirable substrates for the preparation of brominated flame retardants.
    Type: Application
    Filed: November 30, 2009
    Publication date: September 15, 2011
    Applicant: Albemarle Corporation
    Inventors: William J. Layman, JR., Charles H. Kolich, Arthur G. Mack, Steven A. Anderson, Jonathan P. McCarney, Junzuo Wang, Jorge Morice, Zhongxin Ge
  • Branched and Star-Branched Styrene Polymers, Telomers, and Adducts, Their Synthesis, Their Bromination, and Their Uses
    Publication number: 20110224320
    Abstract: New branched or star-branched styrene polymeric, telomeric, and monomeric product distributions, their preparation, their use as raw materials for bromination to produce flame retardants, the flame retardants themselves, and their use as flame retardants in various polymeric substrates are described.
    Type: Application
    Filed: November 30, 2009
    Publication date: September 15, 2011
    Applicant: ALBEMARLE CORPORATION
    Inventors: William J. Layman, JR., Charles H. Kolich, Arthur G. Mack, Jonathan P. McCarney, Govindarajulu Kumar, Junzuo Wang, Jorge Morice, Zhongxin Ge, Bo Liu, Ravindra R. Joshi, Hoover B. Chew, Douglas W. Luther, Kimberly M. White
  • Toluene And Styrene Derived Telomer Distributions and Brominated Flame Retardants Produced Therefrom
    Publication number: 20110224363
    Abstract: This invention relates to novel and useful toluene and styrene derived telomer distributions, such distributions being desirable substrates for the preparation of brominated flame retardants.
    Type: Application
    Filed: November 30, 2009
    Publication date: September 15, 2011
    Applicant: ALBEMARLE CORPORATION
    Inventors: William J. Layman, Charles H. Kolich, Arthur G. Mack, Steven A. Anderson, Jonathan P. McCarney, Junzuo Wang
  • Brominated Flame Retardants And Precursors Therefor
    Publication number: 20110224353
    Abstract: Described are a particular group of novel aromatic hydrocarbon telomers that, on bromination, result in the formation of novel flame retardants having a uniquely beneficial combination of properties. The resultant flame retardants and uses thereof are also described. The disclosure includes descriptions of methods for preparing both the aromatic hydrocarbon telomers and the brominated flame retardant polymers.
    Type: Application
    Filed: November 30, 2009
    Publication date: September 15, 2011
    Applicant: ALBEMARLE CORPORATION
    Inventors: William J. Layman Jr., Charles H. Kolich, Arthur G. Mack, Jonathan P. McCarney, Govindarajulu Kumar, Junzuo Wang, Jorge Morice, Zhongxin Ge, Bo Liu, Douglas W. Luther, Kimberly M. White, Bruce C. Berris