Patents by Inventor Yannan DUAN

Yannan DUAN 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).

  • OVERHEAD LINE DETECTION METHOD AND SYSTEM BASED ON CABLE INSPECTION ROBOT
    Publication number: 20240088631
    Abstract: Provided are an overhead line detection method and system based on a cable inspection robot. The cable inspection robot is suspended on the overhead line. An imaging unit and a laser emission unit are disposed at the front end of the cable inspection robot. The imaging unit is at a first angle to the overhead line. The laser emission unit is at a second angle to the overhead line.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 14, 2024
    Inventors: Jiazhen DUAN, Zheng LU, Hongtao LIU, Ruxin SHI, Wei ZHANG, Yuqin SHU, Zhiwei KAN, Yannan CHEN, Xiaoqiang CHEN, Xianming REN
  • TRANSLUCENT COC POLYMER COMPOUNDS FOR 3D PRINTING
    Publication number: 20210395559
    Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing. Low haze and high transmission versions are a function of specific grades of styrenic block copolymer (SBC) used for impact modification.
    Type: Application
    Filed: August 2, 2018
    Publication date: December 23, 2021
    Applicant: PolyOne Corporation
    Inventors: Roger W. AVAKIAN, Yannan DUAN
  • COC polymer compounds for 3D printing
    Patent number: 11193030
    Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 7, 2021
    Assignees: Avient Corporation, Spyder3D LLC
    Inventors: Joseph Bloomfield, Roger W. Avakian, Yannan Duan
  • COC polymer compounds for 3D printing
    Patent number: 10894894
    Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: January 19, 2021
    Assignees: Avient Corporation, Spyder3D LLC
    Inventors: Joseph Bloomfield, Roger W. Avakian, Yannan Duan
  • Polyvinyl butyral-g-polylactide copolymer
    Patent number: 10669357
    Abstract: Copolymers of a polyvinyl butyral backbone with polylactic acid grafts and their compounds are disclosed, which can be used to produce clear, flexible and ductile bio-based films. The copolymers are amorphous and have been shown to maintain clarity, flexibility, and ductility after continuous exposure to thermal aging at 80° C. for one week.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: June 2, 2020
    Assignee: PolyOne Corporation
    Inventors: Yannan Duan, Roger W. Avakian
  • Aliphatic polyimides from unsaturated monoanhydride or unsaturated diacid reacted with both monoamine and diamine
    Patent number: 10619008
    Abstract: Aliphatic polyimides are synthesized by a reaction of 2 moles of an unsaturated monoanhydride or an unsaturated diacid with both one mole of a diamine and one mole of a monoamine. Imidization of intermediates so formed from those reactions resolve to 6 possible bicyclic imidic structures bridged by monoamidic or saturated hydrocarbon spans, more likely the latter. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 14, 2020
    Assignee: PolyOne Corporation
    Inventors: Yannan Duan, Roger W. Avakian
  • COC POLYMER COMPOUNDS FOR 3D PRINTING
    Publication number: 20190322884
    Abstract: Cyclic olefin copolymer (COC) is useful as a build material for 3D printing, especially desktop 3D printing.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 24, 2019
    Inventors: Joseph BLOOMFIELD, Roger W. AVAKIAN, Yannan DUAN
  • Aliphatic polyimides from a 1:2 molar ration of diamine and unsaturated monoanhydride or unsaturated diacid
    Patent number: 10189951
    Abstract: Aliphatic polyimides are synthesized by a 2:1 molar ratio reaction of an unsaturated monoanhydride or an unsaturated diacid with a diamine. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: January 29, 2019
    Assignee: PolyOne Corporation
    Inventors: Yannan Duan, Roger W. Avakian
  • POLYVINYL BUTYRAL-G-POLYLACTIDE COPOLYMER
    Publication number: 20180223011
    Abstract: Copolymers of a polyvinyl butyral backbone with polylactic acid grafts and their compounds are disclosed, which can be used to produce clear, flexible and ductile bio-based films. The copolymers are amorphous and have been shown to maintain clarity, flexibility, and ductility after continuous exposure to thermal aging at 80° C. for one week.
    Type: Application
    Filed: August 22, 2016
    Publication date: August 9, 2018
    Inventors: Yannan DUAN, Roger W. AVAKIAN
  • CHEMICALLY RESISTANT AND TOUGH CYCLIC OLEFIN COPOLYMER COMPOUNDS
    Publication number: 20180072878
    Abstract: Cyclic olefin copolymer (COC) has its impact toughness and its resistance to UV absorbers and fatty acid derivatives enhanced to commercially acceptable levels by the addition of an impact modifying polymer selected from the group consisting of styrenic block copolymers and olefinic block copolymers and combinations thereof; and a linear or branched polyolefin, respectively.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 15, 2018
    Inventors: Yannan Duan, Roger W. Avakian
  • ALIPHATIC POLYIMIDES FROM A 1:2 MOLAR RATIO OF DIAMINE AND UNSATURATED MONOANHYDRIDE OR UNSATURATED DIACID
    Publication number: 20170051111
    Abstract: Aliphatic polyimides are synthesized by a 2:1 molar ratio reaction of an unsaturated monoanhydride or an unsaturated diacid with a diamine. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.
    Type: Application
    Filed: April 23, 2015
    Publication date: February 23, 2017
    Applicant: PolyOne Corporation
    Inventors: Yannan DUAN, Roger W. AVAKIAN
  • ALIPHATIC POLYIMIDES FROM UNSATURATED MONOANHYDRIDE OR UNSATURATED DIACID REACTED WITH BOTH MONOAMINE AND DIAMINE
    Publication number: 20170044319
    Abstract: Aliphatic polyimides are synthesized by a reaction of 2 moles of an unsaturated monoanhydride or an unsaturated diacid with both one mole of a diamine and one mole of a monoamine. Imidization of intermediates so formed from those reactions resolve to 6 possible bicyclic imidic structures bridged by monoamidic or saturated hydrocarbon spans, more likely the latter. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.
    Type: Application
    Filed: April 23, 2015
    Publication date: February 16, 2017
    Applicant: PolyOne Corporation
    Inventors: Yannan DUAN, Roger W. AVAKIAN
  • ALIPHATIC POLYIMIDES FROM A 1:1 MOLAR RATIO OF DIAMINE AND UNSATURATED MONOANHYDRIDE OR UNSATURATED DIACID
    Publication number: 20170044320
    Abstract: Aliphatic polyimides are synthesized by a 1:1 molar ratio reaction of an unsaturated monoanhydride or an unsaturated diacid with a diamine. Bio-derived monomers are particularly useful in the synthesis of the aliphatic polyimides.
    Type: Application
    Filed: April 23, 2015
    Publication date: February 16, 2017
    Applicant: PolyOne Corporation
    Inventors: Yannan DUAN, Roger W. AVAKIAN
  • FURFURYL-BASED ESTERS
    Publication number: 20150299424
    Abstract: The reactions are disclosed of furfuryl alcohol in the presence of catalyst with aliphatic diacid esters or aliphatic diacid anhydrides to synthesize diesters and monoesters, respectively. The reaction is disclosed of the monoester in the presence of catalyst with alkanols to synthesize diesters. The two types of diesters and the monoesters are proven to be suitable as plasticizers for polymers, particularly polylactic acid. Thermoplastic compounds are disclosed using the esters as plasticizers.
    Type: Application
    Filed: December 12, 2013
    Publication date: October 22, 2015
    Applicant: POLYONE CORPORATION
    Inventors: Roger W. AVAKIAN, Yannan DUAN